مقالات رزومه دکتر بهروز حسن پور

Chemical fertilizers are nowadays one of the basic production inputs toward enhanced yields of agricultural products. The private businesses stepping into the chemical fertilizer market increasingly encourage farmers to consume more fertilizers, which, in turn, ushers in doubts about their optimal application at the farm level. To address this issue, the present study was designed and implemented to determine the factors involved in the optimal application of nitrogen fertilizers on wheat fields in Fars Province. For this purpose, data were collected through the multi-stage cluster sampling method and the survey method using a questionnaire admninistered to 457 wheat farmers in Fars Province. The data thus collected were analyzed through descriptive statistics and the Tobit model. Results showed that 78.56 percent of wheat farmers had failed to observe optimal fertilizer consumption levels. It may, therefore, be recommended that the policies pertinent to optimal use of nitrogen fertilizers as tailored to soil and plant requirements should still be enforced as the pivotal approach. For this purpose, informal education on the whole crop rotation may be suggested as the main agenda with due heed paid to farmers’ socio-economic characteristics that affect their learning while farm water management as realized by the fertilizer-irrigation approach management of soil resources as implemented through soil tests prior to field operations and disseminated as a social culture among farmers, and the main focus placed on planting dicotyledonous plants in alternation with wheat.

A suitable business model in the agricultural value chain enables the use of the full potential of the agricultural sector. The most important and first horticultural product of Iran is citrus fruit, which ranks 7th in the world. However, it occupied the 31st rank of the world market. The disproportion between the production and the effective share in the global market indicates that there is no good pattern in the product value chain. With the production of 1.4 million tons of citrus fruits, Fars province ranks second among the provinces of the country. This research is looking for an optimal model of citrus value chain according to economic, social, cultural, biological, and structural components. Delphi technique was used to prepare the required information and complete the questionnaire by holding briefing sessions with the participation and consensus of 32 experts of the province, including experts related to production, unions, leading gardeners, exporters, and experts related to the citrus processing industry. Analytical Hierarchy Process (AHP) was used in order to analyze the data, calculate the weight of the criteria, and achieve the best citrus value chain model. The results of this research showed that the economic, socio-cultural, bio-environmental, and structural components in the province play a significant role in explaining the desired business model in the citrus value chain. Therefore, based on the above-mentioned four criteria and 21 sub-criteria studied, with the highest relative weight of 0.399, the "Orchestrator model" is the best model among the business models in the value chain. Furthermore, with a relative weight of 0.128, the "Integrated model", which was ranked last, is the least important model.

The inefficiency of the agricultural products market in Iran has caused severe price fluctuations and dissatisfaction on both sides of the market, namely consumers and producers. This market is sometimes faced with oversupply or shortage of supply, and the role of brokers for speculation and hoarding is very colorful. In this study, while examining and identifying the active links related to the value chain, a strategic model for creating an agricultural value chain and its executive instructions were developed so that in this model the role of actors in the market and trade of products is specified.
The present research is applied in terms of purpose and in the field of qualitative research and in terms of research method, it is a combination of two documentary and field methods. Documentary information and face-to-face observation of the activities of 35 economic activists in the agricultural sector of Fars province and 12 joint meetings with officials and managers of the Agricultural Jihad Organization with a brainstorming approach and based on a slight change in Porter value chain model, tried to provide an executive instruction for creating an agricultural value chain.
Lack of awareness of market factors about the value chain, the existence of economic issues and defective links that practically do not create value, has prevented the establishment of continuity in the supply chain and value links in the agricultural sector. The results of this study led to the development of a strategic model for creating an agricultural value chain and an executive instruction.
Familiarity of entrepreneurs and economic actors in the agricultural sector with the benefits of the value chain and the development of supportive laws can help in forming, developing and completing agricultural value chains.

Productivity is an inexhaustible source of economic growth. Cereal, including wheat, barley, rice and corn, because of its important position in production and consumption, are the most important agricultural products in Iran. In this study, by measuring the average total factors productivity (TFP) growth and its components, the situation of farm management and technological progress in cereal farms of the southwest provinces of the country was analyzed.

The data envelopment analysis (DEA) method was used to calculate the total factors productivity (TFP) and analyze its constituent components (technical efficiency growth and technological changes). Through the Ministry of Agriculture, yield and production costs of cereal products including wheat, barley, rice and corn as panel data for seven southwestern provinces, during a 12-year period (2003-2014), were extracted and analyzed.

In most provinces, the main source of TFP growth in irrigated wheat farms is due to technological progress, and in terms of efficiency or farm management, the recession is prevalent. Regarding rain-fed wheat, positive changes in technology and efficiency were observed simultaneously only in Esfahan, Ilam, Chaharmahal Bakhtiari and Kohgiluyeh provinces, and in the case of rain-fed barley in Fars, Kohgiluyeh and Ilam. The limitation of TFP growth in corn is mainly due to poor farm management and, conversely, to rice due to the stagnation of technology.

The decomposition of TFP growth into its components showed different results in each province and each product. Therefore, in some provinces, in the case of irrigated wheat and corn, due to the lack of technical efficiency, educational and extension programs and improving farm management are a priority. While for paddy fields, due to the technology recession, the development of mechanization and technology is a priority.

Improper use of chemical fertilizers in recent decades has endangered the health of humans and other living organisms while creating adverse consequences for environmental pollution and upsetting the balance of nutrients in the soil. To this end, the promotion of the use of bio-fertilizers (EM) by the Ministry of Agriculture Jihad is on the agenda, but unfortunately it has not been well received. Obviously, the use of new inputs is important in the decision-making of farmers, the effects of income and economic benefit. This study, which was funded by the Agricultural Jihad Organization of Kohgiluyeh-va-Boyerahmad Provinces, seeks to answer the question of whether the use of biofertilizers, given their high cost, can increase profitability.

The implementation of this research in the cropping year of 2018-19 in the form of a research-extension project in a corn farm with an area of one hectare in the suburbs of Basht city was carried out under farmer conditions. For this purpose, a field experiment in a randomized complete block design (RCBD) with six fertilizer treatments and three replications in farmer conditions and the costs, gross margin and economic benefits of each treatment were compared. The accounting profit formula was used to calculate the profits of the mentioned farms. Since the calculation of initial investments and fixed costs for all six farms is fixed, in this study, the method of calculating the gross margin (GM), which is actually an estimate of farm profits, was used. The the gross margin is calculated from the difference between sales revenue and total current expenses for the same cropping year.

The results of analysis of variance of field experiment showed that fertilizer treatments had a significant effect on revenue and farm profit (gross margin) at the level of probability (P = 0.01). Based on the comparison of the average revenue and farm profit using Duncan's test, it was found that the lowest farm profit and revenue related to chemical fertilizer treatment only (or control treatment) (C) and the highest revenue related to integrated treatment of biofertilizer, chemical fertilizer and organic (BOC). Comparison of the averages of the effect of fertilizer treatments on gross income as well as farm profit was determined using Duncan's test at a probability level of 5%. The lowest farm profit, in the amount of 101.9 thousand tomans per hectare related to the chemical fertilizer treatment only (or control treatment) (C) and the highest farm profit, related to the chemical fertilizer treatment+bio fertilizer+organic fertilizer (BOC) in the amount of 382.8 thousand tomans. Other treatments with averages of 122.1, 200.9, 254.4 and 357.6 thousand tomans related to organic fertilizer (O), biofertilizer+chemical fertilizer (BC), biofertilizer (B) and biofertilizer+organic fertilizer (BO) treatments, respectively.

Agricultural exploitation systems in Iran's agricultural sector have always played an important role in integration and allocation of human, physical, and environmental resources. The main purpose of this study was to determine the optimal utilization system in the agricultural sector of Kohgiluyeh-va-Boyerahmad province according to the economic, social, and ecological criteria. Delphi technique was used to collect the required information and the questionnaire was completed by holding briefings with the participation of 34 provincial experts, including experts in the farming system, rural cooperative organization, managers of cooperatives, and unions and leading farmers. Analytical Hierarchy Process (AHP) and Expert Choice software were used to analyze the data. The results, showed that based on total economic, social, and ecological criteria and 18 sub-criteria, with a relative weight of 0.293, Mosha cooperative system is ranked first and is the most suitable alternative. Furthermore, with a relative weight of 0.143, agro-industry system is ranked fifth as the least suitable alternative. It is worth mentioning that joint farming stock, peasant, and production cooperative systems ranked second, third, and fourth, respectively. Therefore, more participation of the villagers in the production of crops and sustainable agricultural development will be achieved by employing Mosha cooperatives, joint farming stock companies, and agricultural mechanization. Taken together, employment of these exploitation systems will prevent the fragmentation of agricultural lands under the current conditions.

The objective of this study is the determination of adoption indices and measurement profitability by Investment Rate of Return (IRR) and economic surplus due to the planting of Dehdasht variety. Requiered data were collected from institutes, organizations, Agricultural Research and Education and Natural Resource Centers of targeted provinces by questionnaire in during 2010-2017. In this research,the adoption analysis indices and economic surplus criteria were used. Based on Ministry of Jihad-Agriculture, means of adoption degree of Dehdasht variety in formal seed was estimated 1.3 percent during 2015-2017. Based on the price of durum wheat during study years, means of the change of economic surplus and net present value (NPV) of activity were estimated 602 and 1014 billion Iranian rials.The Investment Rate of Return (IRR) of Dehdasht variety was estimated more than discount rate. In generally, breeding program of Dehdasht variety is economic. It is suggested that in future research planning, researcher select breeding lines through breeding programs and introduce to farmers that not only has high yielding potential compared to the check variety and adapted to the climate but also thay have good resistance to biotic and abiotic stresses.

Meteorological information (MI) and weather forecasts are vital for producing agricultural yields. The aim of this study was to investigate the effectiveness of agro-meteorological information from the perspective of farmers in Kohgiluyeh-va-Boyerahmad Province. The study was based on a survey and statistical population consisted of 42000 wheat farmers in the province. Using Cochran sampling formula, 335 of them were selected as a sample. The validity of questionnaire confirmed by a panel of experts in agricultural and meteorological information areas. The reliability of the research tool was investigated using Cronbach’s Alpha coefficients. The results revealed that most of farmers believe that agro-meteorological information are effective in terms of determining the data of wheat sowing, using insurance services, controlling pests, required seeds, and increasing the quality of wheat, respectively. Communication sources had a significant positive impact on the effectiveness of MI. The result of logistic regression revealed that the affecting components of MI effectiveness consist of the farmer’s trust, attitude, farming without irrigation system, and level of education, respectively. Therfore, it is expected that the effectiveness of meteorological information be increasing by improving the components.

Iran’s agricultural extension system, as one of the main component of agricultural development, has faced different challenges during the past two decades, which has caused the system to be criticized by the authorities, employers and villagers. In order to solve the problems of this system, it was proposed to reform the structure of the agricultural extension system in the framework of a new extension approach with the aim of revitalizing extension services and appropriate transfer of research and technology. However, after about four years from the implementation of this project, the results of various studies indicate a large gap between the current situation and the desired situation. Hence, the purpose of this research is to identify the main challenges and requirements of the Iranian agricultural extension and the pathology of the new agricultural extension system, which has been carried out in two stages using a qualitative approach. The first phase, using the Delphi technique, identifies the challenges and requirements of the Iranian agricultural extension system. The statistical population of this stage consists of faculty members of the field of agricultural extension in all over the country (N1= 138), experts of agricultural extension of cities and experts in the area in five provinces of Mazandaran, Fars, Kohgiluyeh and Boyer Ahmad, Esfahan and Alborz (N2= 1300). Also, managers and experts of the agricultural research organization at the headquarters of the organization (N3= 10) have been selected using a purposeful sampling method. The results of this phase identified 33 main challenges in the form of 6 categories and 17 requirements for the agricultural extension system. The second stage of the research was carried out using the phenomenological method. At this stage, the experience of the experts of the system of extension on the achievements of the new system and the challenges facing this system was evaluated. The results of this phase revealed that this system was successful in knowledge management, communication and staff empowerment, but was weak in the fields of infrastructure and human resources.

Background and Objectives Table grape (Vitis vinifera L.) is one of the most important horticulture crops in Iran. In some regions, due to excess water and good climate, the vegetative growth is more than normal. The canopy plays a key role in light energycapture via photosynthesis apparatus, water use as regulated by transpiration, and microclimate of ripening grapes. Canopy management is an important aspect of viticulture due to its effect on grape yields, quality, vigor, and the prevention of grape diseases. Where vineyards have access to a permanent and unlimited water source, irrigation can be managed so that water stress is imposed during certain periods of time to increase fruit quality and to control canopy. This study was conducted to investigate the effects of different levels of topping times and preharvest cut-off irrigation treatments on the qualitative and Quanitative characteristics of Askari grapes in Dena (Sisakht) region during 2013-2015.
Materials and Methods ‘Askari’ vines were 18 years old on their own roots, trained as a head system. The vines were spaced 2.5 × 3 m. They were pruned as spur pruning which left 60 buds (4-node spurs) on each vine. Vineyard had a drip irrigation system. Shoot topping done at 10th buds of the last cluster. An experiment was arranged as factorial that the first factor included different levels of topping dates with four levels (control, after fruit set, unripe stage and veraison stage), and the second factor involved the preharvest irrigation cut-off date treatments on four levels (Control, 70, 80 and 90 days after full bloom) in a randomized complete blocks design with four replications. Factors relating to the determination of the quality of fruit juices included %TSS, pH, TA%, vitamin C and TSS/TA ratio respectively. Also, bunch weight and yield were measured.
Results Results of the analysis of variance showed that the effect of topping and irrigation cut-off date treatment were significant on the TSS, TSS/TA, pH and Vit-C content (P≤0.01). But the interaction effects were significant only on the TSS/TA and Vit-C (P≤0.01). Finally, mean comparison showed that the highest vitamin C was observed at veraison stage and irrigation cutoff dates treatments at 80 and 90 days after full bloom.
Discussion In some of vineyards, high vigour vines also have too much canopy shading which is detrimental to the light microclimate and has also been shown to lead to increase of TA and decrease of TSS and TSS/TA ratio. Therefore, canopy manipulation is used successfully in grape production to balance the vegetative and reproductive growth of vines. Differences in vine water status before veraison has been shown to have no effect on the onset of veraison, while withholding water after veraison can delay the accumulation of soluble solids under severe water deficits. Certainly, light and temperature are the most important environmental conditions that impact the growth and quality of grapes and unshaded conditions affect better coloring and increase TSS/TA ratio.

This study aimed mainly at prioritizing rural municipalities (RMs) of the central district of Jiroft county in Kerman province of Iran according to the standards of sustainable rural development. First, the most important criteria were identified in a desk document method. Then, using the Delphi technique and the views of experts and subject specialists and village councils (25 individuals) in three stages, the most important criteria were primarily classified into five main issues and finally into the 42 sub-criteria. The alternatives to this research included the RMs of five villages of the concerned central district. Finally, fifteen experts in rural affairs were asked through focus group interviews with counsel to compare the pairwise test criteria and alternatives based on the criteria. Results revealed that among the criteria for measuring sustainable development, the greatest relative weight was of the construction and infrastructure critera with the value of 0.330 and the lowest relative weight was assigned to the criteria associated with communication with organizations and institutions with the value of 0.087. A number of the assigned sub-criteria to the sustainable development included improving the health services, encouraging the rural people to develop handicrafts and efforts to promote the development and marketing of rural products, making efforts to enhance social capital of the village, avoiding the pollution of water and soil in the village, and cooperating with the council and prefect for review and issuance of business licenses which were ranked first in each concerned criterion to determine the performance of the RMs.

In this research, the economic value of Recreational (non use) functions and the factors affecting the willingness to pay Yasouj Forest Park-e Abshar's visitors using double dichotomous choice contingent valuation questionnaire was estimated.
180 questionnaires in the spring and summer of 1392 through the completion of interviewed visitors were collected. According to Bids amounts for 1000, 2000 and 3000Tomans was determined for park entrance fee. In addition to other information about the socio-economic characteristics were collected. Due To estimate the parameters influencing the willingness to pay of visitors the logit model was estimated.
Findings: Based on the results, the 77/2% of visitors were willing to pay to protect and preserve the park.The Average willingness to pay (EWTP) of each sample about 19,085 rials was obtained. Variables such as bids, income, length of stay in the park and visiting the park were significant.
Discussion and The results of this study provide important information about planning to promote the park for quality recreational facilities. For example, set park's entrance fee up to 19085 Rials per person, Sources of income which can be spent on equipment and cause satisfactory parks and recreational facilities provided for the visitors.
Also, through the participation of young people interested in the environment and recruits of the honorary guards, can be used to remove contaminants, helping to beautify and protect the privacy of parks used to be great.

1. The pattern has been the same for the planning and management of agriculture in rural areas, which is applied to various forms of state failure and inefficiency of the agricultural development programs. Because this planning and management have not been designed based on needs, talents, and abilities of the rural areas, but based on consensus over the potential and actual needs and abilities. Accordingly, knowledge of the distribution and degree of development of agriculture in this area could be a prerequisite for agricultural and rural development projects and programs to be considered. In this regard, one of the ways that can be useful in planning and managing the development of agriculture is the classification of rural areas according to conventional indicators of agricultural development. Results obtained from the survey studies, showed that due to changes in development, regardless of its natural resources, these regions are among the deprived areas and to achieve the appropriate level of development requires government intervention and planning. Hence, in order to reduce the problems of development, intervention and orientation of the agricultural structure will be an important factor. In this regard, the aim of the present study is to determine the level of agricultural development (Farming Subsector) in rural areas in Dashtroom village in Boyerahmad county to improve rural development planning.
2. The present study, from the objective point is an applied research and from the analitycal point is quantitative research method. The population of the research consisted of rural areas more than ten households in the central part of the Dashtroom village in Boyerahmad county that includes 39 villages. To determine the sample size, Krejcie and Morgan methods was used through families residing in the study area. Sample size of 320 households were calculated, and then in every village, according to its population, a number of farmers who were the heads of households were selected. In this research, the data were primarily collected through field studies and questionnaire. Content validity was checked to determine the validity of the questionnaire which was designed and revised after consulting with university professors and experts. In order to determine the reliability of the questionare, the pre-test (30 questionnaires) was conducted; the Cronbach's alpha coefficient obtained indicated the reliability of the questionnaire. To assess the development of agriculture in the region, the hybrid method of TOPSIS-entropy was used. Data processing was carried out through using MATLAB 7.10 software.
3. The results showed that the agricultural development coefficient (Farming Subsector), in the rural areas of Dashtroom, is the highest (0.90) in Tangary village and the lowest (0.08) in Cheshmeh Baloot village. Thus, the amplitude of the development level in the agricultural sector was estimated 0.82. In addition, villages including Cheshmeh Balutak, Gav Barg, Kooshk Olia, Saadat Abad, Bahareh-e-Barg Khiari, Cheshmeh Khersi Piroozak, Chel Mohammad Bagheri Pereshkaft, Chel Mohammad-e-Bagheri Pereshkaft, Dare Khani Pereshkaft, Moradi Pereshkaft, Dare Galga Pereshkaft, Cheshmeh Roghat, and Chah Pazanan were considered as underdeveloped villages, and Tangary and Hussein Abad Olia as developed villages. Furthermore, the results indicated the unfavorable development of agriculture in the region (with an average of 0.35 in a range of zero to one); thus, most of the villages in the region (58.97 %) are the least developed ones. The calculated dichotomy coefficient reflects the existence of inequality and differences in the rate of development in rural areas. The results showed that the spatial distribution of agricultural development in the region is not in a balanced state. The data indicated that the average rate of development, in the agricultural sector, in terms of economic, social, technological, infrastructure, and environmental dimentions in the region is equal to 0.34%, 0.43%, 0.49%, 0.34%, and 0.52%, respectively. Given the agricultural development dichotomy coefficient, it can be said that, the lowest dispersion, with the coefficient of 0.34, was the technical dimension and the infrastructural dimension, with the coefficient of 0.53, was the maximum amount of dispersion and the lack of balance in the rural districts. Other findings indicated that the natural location of the villages under survey is effective in enhancing the rate of development of rural areas. So that, the villages located in the plain areas had higher development rate. It can be said that, the villages which are in a plain position have been developed more because they are in the normal position of infrastructure and services (i.e., good communication, good access to transportation, fertile lands, etc) for its residents in comparison to the villages in the hills and further development of the forest have created.
4. The findings suggested that, the studied villages have different levels of agricultural development. Tangary village, with the degree of development equal to 0.909%, and Cheshmeh Balootak village, with the degree of development equal to 0.082%, have the highest and the lowest level of agricultural development in the Dashtroom district. Among the five dimensions of agricultural development, dichotomy coefficient of technical dimension was the lowest that is indicative of the relative homogeneity of the villages in this dimension. Infrastructure dimension had the highest level of dichotomy coefficient. Data analysis revealed that, the degree of agricultural development in the region under study in terms of economic, social, technical, infrastructure, and environmental dimensions was 0.34, 0.43, 0.49, 0.34, and 0.52%, respectively, that reflects the superiority of environmental dimension compared to other dimensions. Overall, the results suggested that, the spatial distribution of agricultural development rate in the studied region is not in a balanced state.

The Bushehr Province with an annual production of 45343 tons of total country`s productionis in third place in ranked. The aim of this study was to evaluate the functionally and technicalefficiency of agricultural insurance for growers in the province. Technical efficiency is one ofthe measures to evaluate the operating performance of agriculture. This cross-sectional studywas conducted as a survey. The target population includes all tomato growers Bushehr provinceby using cluster sampling from three counties of Dayyer, Dashti and Jam were collected in theprovince. The utilization of Patton table to determine the sample size of 8,000 tomato growersof Province, 367 people were in three counties of Dayyer, Dashti and Jam with 70, 57 and 65tomatoes growers uninsured and the number 65, 50 and 60 tomatoes growers insured ,the col￾lected information on the total sample were determined. The results showed that the averagetechnical efficiency of tomato farmers insurance group in counties of Jam, Dayyer, Dashti usingordinary least squares corrected, respectively, 61.8, 44.2 and 41.4 percent and for group not in￾sured respectively 60.5, 33.8 and 34.6 percent. The test results were compared and the averagetechnical efficiency of insured tomato growers in any county, showed that agricultural insurancein counties of Dashti and Dayyer had a positive and significant effect on the technical efficiencyof growers, while uninsured growers has no significant technical efficiency on growers of Jamcounty.

The general objective of the study was to examine the social structure of organizational member's participation in cooperatives in the central part of Boyerahmad County.

A survey research method was used in this study. Research population consisted of the members of Boyer-Ahmad RPCs members (N=1809) that included about 317 ones of they were selected as research sample based on random sampling table and stratified sampling technique. Data collecting tool was a researcher developed questionnaire that its validity was verified using Factor Analysis technique and its reliability was also verified using Cronbach’s Alpha internal consistency scales. The KMO scores (from 0.513 to 0.834) and Alpha Coefficient Scores (from 0.536 to 0.91) show proper optimality of the prepared questionnaire. Finally, some statistical analysis techniques such as Pearson Correlation Coefficient, Independent Samples t-test and Logistic Regression were used to analyze data.

the results indicate that about 57.6 % of the sample categorized as lower-middle participation that who were involved as a semi-active participant group, and 42.4% categorized as good and excellent participation in the group who were active participants. In addition, The results indicate that the majority of members of the cooperative were semi-active participation the affairs of rural production cooperatives (RPCs) are examined Logistic regression results showed that the factors such as satisfaction with the services provided by cooperative, board accountability, knowledge and awareness of members about the principles and laws of the cooperative, social capital of board, and attitudes to cooperation and teamwork are the factors affecting farmer's participation in RPCs in Boyerahmad County.Research limitation: One of the main challenges in this study is high costs of completing the questionnaire, according to the extent of the study area, the main challenges facing researchers in this study.Practical implication: It is concluded that the improvement of the factors mentioned can be expected to increase the participation of members in RPCs.

The purpose of this study was to examine marketing problems of rice and rice losses in marketing channel. A sample of 142 producers and 43 rice milling in province were selected by stratified random sampling and data were collected through interviews for year of 2003. Results of this study revealed that the waste was high due to paddy harvest and rice milling processes was traditional. Local buyers، middlemen and ahead purchasers share of rice dealing were 42. 2، 21. 8 and 15. 5 percent respectively. Marketing cost coefficient and marketing inefficiency of rice were 31 and 45. 2 percent respectively. The average of wholesale، retail and marketing margins of one kilogram of rice were estimated to be 760، 770 and 1530 Rials respectively. Also، share of net marketing margin to retail price was 15. 5 percent. Minimum and maximum of marketing margins were related to Champa (2020 Rials) and Gerdeh (1020 Rials) rices respectively. The results showed that annual quantity of rice wastage and quality losses due to broken rice were amount to 15661. 8 ton and 32. 3 billion rials.

About 62% of the total of barley (Hordeum vulgare) is cultivated through dry farming in Iran. Investment in agricultural research is most important factor in agricultural growth and development. The main purpose of this study was economic evaluation of investment in agricultural research by method and calculation of innovation acceptance score for farmers. Improved rainfed barley included in the study were Ezeh in Kohgiloyeh-va-Boyerahmad and Sararood1 in Kermanshah provinces. Data were collected from farmers by a survey method and registered information in agricultural centers and institutes. A sample of 192 producers in two provinces of Iran were selected by the stratified random sampling method and data collected by filling out questionnaires for crop year 2002-2003. Farmers were classified in two main groups, acceptor and unacceptor group new rainfed barley cultivars. For measuring farmer's innovation acceptance score, analytic hierarchy process (AHP) method was used. Return of investment in agricultural research was calculated by benefit-cost ratio (BCR) method. Results of this research showed that rainfed barley breeding cost, based on prices in 2002, was 874 million rials and weighted average of extension cost in wheat farms was 722 rials per hectare in the whole country. On the other hand, new cultivars have more yield than the formers cultivar. Also, utilization of these cultivars at least increased production and farmers benefit, 8592000 ton and 8.5 billion rials respectively. The results showed that benefit cost ratio of investment in rainfed barley breeding was more than one, and one rial cost made 3.36 to 7.66 rials benefit. The results of this study also revealed that there were significant yield differences among 3 levels of innovation acceptance score of farmers. Consequently, increasing innovation acceptance score will cause increasing barley yield mean. Finally, some recommendations are made for agricultural research budget improvement.