نشریه یافته های نوین کشاورزی
سال یازدهم شماره 3 (پیاپی 43، بهار 1396)

Intercropping on the basis of potential environmental in areas where inputs such as land and water constraints faced by planting two or more crops are used repeatedly and in combination. In order to evaluate the effect of intercropping of maize the KSC 704 with two kinds of beans the Sunrise (Phaseolusvulgaris) and Cowpea Mashhad cultivars (Vigna unguiculata) The amount of dry matter forage production and quality testing in a randomized complete block design with split plot with five treatments and three replications during 2009-2010 in the field of Islamic Azad University of Mashhad. Intercropping in terms of the percentage ratios are 00: 100, 25:75, 50:50, 75:25 and 100: 00, respectively. The study characteristics included , forage fresh and dry weight, leaf area produced by plants, land equivalent ratio (LER), protein and fiber yield of forage. The results showed that land equivalent ratio (LER), in all intercropping treatments that represent more than a single ship intercropping advantage. Dry matter yield in intercropping system more than monoculture corn. Legumes in intercropping reduced leaf area But leaf area increased corn planting ratio of 75:25. Intercropping with cowpea compared with common beans effect on increased forage protein content than the monoculture system. Crude fiber content, in intercropping to monoculture corn, which increases the palatability of forage was reduced. The results showed that intercropping with cowpea good way to feed a high quality and quantity. Considering the forage yield and forage quality best planting ratio was as 75:25. The highest land equivalent ratio (LER) was obtained in this treatment.

The Effect of plant growth regulator Cycocel and different levels of nitrogen fertilizer on some growth characteristics and yield of barley, factorial experiment was conducted based on randomized complete block design with four replications in Research Station of the faculty of Agriculture, Islamic Azad University Branch Ardabil in 2015. Treatments the experiment consisted CCC concentration (zero, 500, 1,000 and 1,500 mg per hectar) and three levels of nitrogen (50, 100 and 150 kg per hectar) was applied in the form of urea on Makuyi spring barley cultivars.The results of this study showed that the concentrations of various nitrogen and cycocel on the number of fertile tillers, spike length and harvest index at 5% and the number of spikes per square meter, number of seeds per plant, grain weight, height plant, seed yield and biological yield were significant at the 1% level. The interaction of different concentrations of nitrogen and cycocel on the number of spikes per square meter, grain yield and biological yield was significant at 1%. In this experiment results mean comparisons showed that the highest number of fertile tillers (1/5), spike length (9/6cm), grain yield (3687kg/ha) and thousand grain weight (34/7 gr) respectively, application CCC (1500 mg/ha). The results of interaction between nitrogen fertilizer and different concentrations of cycele showed that the highest number of fertile tillers (1.8), number of spikes per square meter (383.5), grain yield (3808 kg/ha) and biological yield (3808 kg /ha) (17795/2 kg/ha) using 150 kg of nitrogen per hectare with 1500 mg/ha cycocel was obtained.

In order to investigate the effects of compost and earth worm on and quantity and quality yield of salvia officials, an experimental was carried out based on factorial in completely randomized block design with three replications in experimental in the Challus University in 2014. The treatments were included 1-Erath worm with application levels (0.10 and 20 class) 2-compost with consumption levels (0 and 30g per pot) and 3-type soil tissue (sand and clay). The evaluation of characteristics was included, dry matter of plant, rate of essence, CEC, OM%, N%, pH and EC. The highest of dry matter of plant and rate of essence with interaction effects treatment application Erath worm and consumption of 30g compost was obtained. Maximum N percentage of soil (0.47), OM percentage (1.53), CEC (23.66) in interaction effects 20 class earth worm with 30g compost achieved application of earth worm induce EC increased significantly. Increase dry matter of plant and rate essence that was affected Application earth worm and compost consumption induce to dry matter of plant and rate essence increased because CEC, %OM and %N soil with treatments of application earth worn with compost were increased.

In 1390 the project was done in the research field PNU Farmahin.In a randomized complete block design with four replicates each consisting of 8 plots was carried out. Treatments include foliar application of zinc, iron, manganese, iron, manganese, iron, zinc and manganese, iron, zinc, manganese and control treatment. Concentration of 5 per thousand fertilizers for the use of the sulfate form. Spraying was done in two stages stem and tassel emergence. The results showed that the effect of treatments on nitrogen, phosphorus, potassium, iron, zinc, manganese, seed yield, forage yield and dry matter yield were significant.

An experiment Was carried out Study of heat stress on rice cultivars grain milling quality of Khuzestan province in a split-plot arrangement using randomized complete blocks design with three replications in 2006 and 2007 cropping seasons at Shavoor Agricultural Research Station, Dependent in Research Center of Agricultural and Natural Resources of Khuzestan. For exposing rice cultivars to different higher temperature regimes, main plot was assigned to three sowing dates from 5 May with 20 days' intervals and cultivars; Hoveizeh, Hamar (heat tolerance) Ghermez Anbori, Champa (heat sensitive) and Danial (relatively heat tolerant) were randomized in sub-plots. The results of combined analyses showed that was a significant different in planting date by variety interaction in all of trades. On the other hand, the related temperature condition, varieties had different reaction. The highest of grain elongation obtained in Ghermez Anbori, Danial and third sowing date. The elongation ratio was higher in third; second sowing date and Ghermez Anbori. The heat tolerant cultivars had highest Gel consistency (Gc) and Amylose content (Ac). The highest Gelatinization temperature (Gt) obtained in third sowing date.