Evaluation of Seed Yield, Its Component and Nitrogen Use Efficiency of Sorghum in Response to Nitrogen and Nitroxin Fertilizers

BACKGROUND: Fertilizer management plays an important role for obtaining satisfactory yields and to increase crop productivity. Nutrient management may be achieved by the involvement of organic sources, bio fertilizers, and micro-nutrients. OBJECTIVES: Assessment effect of chemical and biological fertilizer on seed yield, its components and plant height of Sorghum crop. METHODS: This research was carried out via split plot experiment based on randomized complete blocks design with three replications. Pure nitrogen from urea source was used as the main plot in four levels (a1 = 0 or control, a2 = 50, a3 = 100, a4 = 150 Kg N ha-1) and Nitroxin bio-fertilizer was used as the sub plot in two levels (b1 = nonuse of bio-fertilizer or control and b2 = use of 1 L.ha-1 Nitroxin per 200 kg seeds). RESULT: The results of analysis of variance indicated that the effect of different level of nitrogen and Nitroxin on all measured traits was significant but interaction effect of treatment was significant only on seed yield, number of seed per spike and nitrogen use efficiency traits at 1% probability level. The maximum number of spikelet per spike, seed per spikelet, seed per spike, 1000-seed weight, seed yield and nitrogen use efficiency belonged to the treatment with consumption of 150 Kg N ha-1 and also to the treatment with consumption of Nitroxin bio-fertilizer. Crop under 150 kg nitrogen treatments and not using fertilizers with the mean of 116 and 108 cm had the highest and lowest plant height. CONCLUSION: Finally according result of current research consumption 150 Kg N ha-1 with 1 L.ha-1 Nitroxin led to achieve maximum seed yield (349 gr.m-2) and it can be advice to producers.