Effect of Nitroxin and Urea Fertilizers on Some Quantitative and Qualitative Traits of Corn and Fenugreek Forage based on Additive Intercropping in South Khorasan

In order to study the effect of bio, Integrated and chemical fertilizers and inter cropping patterns on some qualitative and quantitative forage traits, a split plot based on randomized complete block design with four replications was carried out in South Khorasan in 2016. The main factor in five fertilizer levels including no fertilizer, 50% nitrogen chemical fertilizer, 100% nitrogen chemical fertilizer, nitroxin fertilizer, combined nitroxin fertilizer + 50% chemical fertilizer and sub factor in six levels including pure fenugreek, pure maize, additive mixture of 100% maize + 25% , 50% ,75% and 100% of fenugreek were considered.According to the results, fresh and dry weight of maize were significantly affected by fertilizer treatment, cropping pattern and treatment composition of fertilizers and cropping pattern at 1%  level. Dry weight of fenugreek was significantly affected by pattern, cultivation and treatment composition of different types of fertilizer and culture pattern at 1% level. The effect of culture pattern and treatment composition of fertilizers and planting pattern on forage quality traits were significant at 1% level. The effect of different types of fertilizers was significant at 1% level on forage fiber and that was significant at 5% level on specific net energy of lactation. The highest percentage of ash (7.15%) was observed in pure fenugreek culture with 50% nitrogen chemical fertilizer. The highest specific net energy lactation (1.92 Mcal.kg-1) was observed in pure fenugreek culture with biofertilizer application and the highest water soluble carbohydrate (30.95%) was observed in pure maize without fertilization. The results of qualitative forage traits analysis showed that the presence of fenugreek in forage composition improves the quality of forage. Based on the study, maize + 75% fenugreek and maize + 100% fenugreek cultivation patterns applied by combined fertilization method, can be a good alternative to corn cultivation in the region.