جستجوی مقالات مرتبط با کلیدواژه « Magnetic water » در نشریات گروه « زراعت »

To evaluate the effect of planting date and seed priming in the field on growth, yield components and yield of maize single cross 260, Experiment split plot based on randomized complete blocks with three replications in research farm located in the region of Kurdistan in the years 2013 and 2014 Dehgolan Sarab came into force. Three planting dates (10th, 20th and 30th of May) in main plots and six priming includes priming with tap water, homeopathic priming with urea, priming with zinc sulfate, priming magnetic water, priming with Aminol-Forthe and untreated seeds were placed in sub plots. The results showed that priming treatments with tap water, urea homeopathy and zinc sulfate had the highest crop growth rate at the second planting date. Also the highest biological yield and grain yield were obtained in the second planting date (19660 and 10890kg/ha) respectively. Grain yield in these priming treatments was 18, 15 and 9% higher than control (without priming) respectively. From the results of this experiment it was concluded that seed priming treatments with tap water, urea homeopathy and zinc sulfate on the second planting date improved the growth indices and as a result of grain yield and biological yield. Also, the second planting date due to having the highest yield, the most suitable date for the cultivation of maize 260 in the region of Dehgolan was known,

In order to investigate the effect of magnetic field and irrigation with different salinity levels on cotton seedling emergence, a study was conducted as factorial experiment in a randomized complete block design with three replications in the Kashmar Higher Education Institute during 2016. In this experiment, different levels of irrigation water salinity were considered i.e.0.5: (S1); 3: (S2); 7: (S3); 10: (S4); and 13: (S5) ds/m as a main plots and magnetic field (M1) and non-magnetic (M2) as sub-plots. Six Neodymium-iron-boron magnets with the power of 1500 mT and dimensions of 4×2×1 cm were used to produce magnetized water. were included Determination of percentage and duration of seedling emergence under irrigation by magnetic and no magnetic were evaluated parameters The results showed that by increasing of salinity, germination of cotton reduced so that the ratio of reduction were as 46, 60, 83 and 100 % for salinities treatments i.e. 3, 7, 10 and 13 ds/m, respectively, under non-magnetic condition and also under magnetic condition were at the rates of 21, 46, 36 and 50 %, respectively. According to the results, it was evident that more than 67 % of the buds were appeared in all salinity levels under magnetic conditions before the fourth day after the appearance of the first seedling, while for non-magnetic conditions were obtained sixth day for low salinity and for high salinity 15day after the appearance of the first seedling. The results showed that magnetic water effect was significant at 1 and 5% on number of seedling and accelerate germination time, respectively. Therefore, it can be conclude that magnetic effect was positive on the number of buds and accelerate germination time under various irrigation water salinities.

Increasing the productivity and quality of irrigation water is a key factor in solving the greatest challenge of agriculture in arid and semi-arid regions. In this research, the effect of irrigation with magnetic water and ordinary water on different levels of drought stress was investigated on morphological, physiological and biochemical properties of corn (KSC703). The present experiment was conducted in the form of factorial experiment based on completely randomized design with four replications at the research greenhouse of Imam Khomeini (RAH) International University, Qazvin in 2016. The experimental treatments were consisted of irrigation with ordinary water and magnetic water by the amount of 75, 50 and 25 percent of field capacity with control (without tension). The results showed that the measured traits were significantly affected by irrigation treatment, so that, the highest stem diameter (1.87cm), the maximum leaf width (5.92cm), the highest plant height (126cm), the highest amount of chlorophyll (45.97), the highest percentage of nitrogen (4.05 percent), phosphorus (0.39 percent) and potassium (3.78 percent) of corn leaf, was observed in the treated plants by magnetic water and without tension conditions. The highest amount of total protein (0.63 milligram per gram dry leaf) was obtained from magnetic water treatment and irrigation by the amount of 75 percent of the agricultural capacity. In general, magnetic water had a positive and significant effect on the most measured traits and could somewhat reduce the negative effect of low water in corn.

In order to study the effect of some seed pretreatment on yield and seed quality characteristics of Amaranthus hypochondriacus L, a trial was concluded using six treatments based on randomized completely block design whit three replication in research field of Urmia university on 2014 cropping season. Treatments were including seed priming of pigeon manure (one in 10), concentrated vaniaz (68.39 precent) (three in 1000) super macro nano chelate fertilizer (three in 1000), magnetic water, homeopathy 6x and control. The seeds were soaked in the solution of listed treatments for eight hours; therefore those were brought to the initial moisture content for 24 hours at 25◦C. seed sown in field and harvested in maturity time. Results showed that pretreatment of magnetic water increased seed yield, biomass yield, phosphorus, oil percent, oil yield, palmitic and stearic fatty acids respectively 22.31, 17.71, 25.5, 20.6, 36.6, 12.7, 22.2 percent compared to the control. The highest value in oleic and linoleic fatty acid was obtained for nano chelat fertilizer. The treatments applied before planting due to the increasing percentage of germination, seedling growth and establishment on-farm create more favorable condition than what occurs in the seedbed after planting. According in current study, using magnetic water and nano chelat pretreatment was lead to yield and quantitative enhancement more than others.

IntroductionAmaranthus (Amaranthus hypochondriacus L.) is a broad-leaved plant that was considered as new plant in many world countries such as Iran. Studies have showed that nutritional quality of amaranthus are higher than cereals and forage crops. Using treatments before planting will result in high germination rate, fast and appropriate establishment, and play important role on agronomic yield of crops. Study of seed organic pretreatment for morphological characteristics and quality according to forage desirable quality of amaranthus, as new plant in Iran, production deficit and forage qualitative reducing in this country on recent years, can be positive step to introduce this plant as forage security source.
Materials and MethodsTo study the means of morphological characteristics and forage quality of amaranthus under seed pretreatment, a trial was arranged as randomized completely block design with six treatments and three replications in research field of agricultural college of Urmia university. Treatments were including seed priming of pigeon manure (10%), concentrated vaniaze (68.39%) (three in thousand) super macro plus nano chelate fertilizer (three in thousand), magnet water, Homeopathy 12x and control. The seeds were soaked in the listed treatments for 8 hours, therefore those were brought to the initial moisture content for 24 hours at 25 ◦C and transfered to field for planting. Ground preparation was concluded in the beginning of June as furrow-ridge. Seed were placed in 1-2 cm soil depth. Evaluated traits in current study were including plant height, secondary bough number, stem diagonal and forage quality. Harvest was at flowering stage in one square meter of each experimental unit. Samples were dried and milled. Therefore, near-infrared spectroscopy (NIR) technology was used for forage quality measurement.
Results and DiscussionResults of analysis variance indicated that treatment effects on plant height and diagonal stem were not significant, but was significant for leaf number and secondary bough number. Using priming led to plant height and stem diagonal increasing, but were statistically not significant. The highest leaf number was related to magnetic water pretreatment (395 leaves in square meter), then pigeon manure (362.3 leaves in square meter). The highest secondary bough was related to magnet water pretreatment. After primed seed establishment in soil, the seeds were germinated more monotonous, faster and better than no-treatment. Actually, plants derived from primed seeds were developed root systems on the shortest time as compared with seeds without pretreatment because of desirable suction of nutrition material and water, and ecological and biological sections production. Treatment effect was significant for all traits except to ash percent. The most crud protein percent and soluble carbohydrate and digestibility dry matter was related to pretreatment of pigeon manure respectively 25.4%, 11.8% and 51.5%. The highest percentage of soluble fiber on neutral detergents and soluble fiber on acidic detergent, and crude fiber were obtained for control respectively by 59.7%, 43/03% and 26/6%. Crude protein value of forage was significantly related to digestibility percent that is one of the most important factors determining forage quality. Increasing crude fiber will result in reduction of protein and nutrition value of crops. Amaranthus was placed on desirable qualitative degree for crude protein percentage and digestibility according to grass species categories for indicators values of forage quality.
ConclusionsAccording to forage desirable quality of amaranthus, as new plant in Iran, production deficit and forage qualitative reducing in Iran, seed enrichment with desired elements led to better germination and growth, high production and quality of crop. According to obtained results in current study, using organic seed pretreatment led to qualitative and quantitative enhancement of amaranthus forage. Therefore, seeds treatment before planting using organic fertilizers produced in the field will lead to fertilizer preparation related the cost saving, and income value will be economically more than the cost and cost-effective for farmers.

Artichoke (Cynara Scolymus L.) is a medicinal plant that is relative adaptation to salinity. This experiment was conducted as a completely randomized factorial design with three salt irrigation treatments including 0 (control), 3, 6 dS/m NaCl and four magnetic water levels (Zero, 3000, 6000 and 10000 Gauses) with three replications in green house. Seeds were sown into round plastic pots. 120 days after planting, growth, dry weight and sodium and potassium concentration were measured. Analysis of variance showed that salt and magnetic stress had significant effects on morphological parameters and potassium concentration. Salinity (non-magnetic) reduced plant height and increased dry weight. The use of water magnetization increased growth parameters and amount of potassium. Salinity decreased plant height and increased fresh and dry weight of leaves. Statistical comparison showed that with increasing salinity, reduced amount of potassium but there was no significant difference in amount of sodium. Although, the levels of magnetic field had different effect on potassium absorption. But, generally, the field of 6000 gauss showed better performance than all of treatments.

In this paper, the effect of applying field magnetic crossing water for irrigating maize seeds (cv. Maxima) in the germination and establishment tests was studied. For this purpose, two separate experiments were carried out in faculty of agriculture, university of Zanjan (Iran), in 2011. The germination test was done for 10 days and the establishment for 20 days. Both experiments were done as factorial test in completely randomized design with 4 replications. The experiment factors were type of water including distilled water and well water and crossing and no crossing through the magnetic field. To irrigate treatments, it was used distilled and well water in usual state and after crossing from magnetic field with rate=0.1 Tesla. Length and dry mass of shoot, length and dry mass of root, percentage and rate of germination were measured and calculated in the germination and establishment tests. On the results, using magnetic water, in the germination test, increased shoot length, dry mass of shoot, dry mass of root, percentage and rate of seed germinations 17.95, 25.9, 22.22, 21.23 and 21.8 percent, respectively, compared with control treatments. Also, the establishment test results showed, irrigating treatments by using magnetized water had increasing effect on initial growth characteristic of plants, so that it increased plant shoot length, dry mass of shoot, dry mass of root and germination rate, respectively, 14.65, 20.87, 33.12 and 12.2 percent compared with control treatments. Consideringthat no material is added in irrigation water when crossing magnetic field, so magnetizing of irrigation water is a safe and environmental technology

To study the effect of organic growth stimulant and harvest time of soybean cultivar Williams on oil harvest index and protein yield, factorial experiment was conducted in complete randomized block design with 15 treatment and three replications of Rice Research Institute of Iran (Rasht) in 2012-2013 year. The experiment Treatments were including Kadostim (50.00), Aminol forte (20.00), organic manure (cow,10 ton.ha-1), magnetic water (20 lit.m-2) plus the control (no spray) and three harvest time 1. the first harvest when seed pods in main stem had 25-20% moisture, 2. the second harvest when in pods maturity (yellowing of more than 95% of pods) and seeds per pod in the main stem had 15-14% moisture, 3. the third harvest when the main stem had less than 14% moisture. Results showed that significant differences exist between the spray application and harvest time in oil harvest index and protein yields. spray application with kadostim had the maximum oil harvest index (8.7%) and biological yield (5933 kg.ha-1). Mean comparison of the interaction showed that spray application of kadostim at the second harvest produced highest grain yield (2853 kg.ha-1), oil yield (664 kg.ha-1) and protein yield (1019 kg.ha-1). The results of this experiment, it seems that Kadostim and organic manure spray application at the second harvest to help increase production, and a step towards reducing environmental pollution and sustainable agriculture is.