Evaluation Effect of Different Level of Combination Chemical and Biological Fertilizer and Several Type of Application Fertilizer on Growth Indices of Bread Wheat

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: Current study was done to assess effect of different rate of combination fertilizer and biological fertilizer and type of application biofertilizer on physiological traits of Wheat crop. METHODS: This research was carried out via factorial experiment based on randomized complete blocks design with three replications along 2020-2021 year. The treatments included different rate of combination Nitrogen fertilizer and Biofertilizer (Fla Wheat) (a1: 100% nitrogen with nonuse of Fla Wheat as control or N100/F0, a2: 70% Nitrogen with Fla Wheat or N70/F1, a3: 40% Nitrogen with Fla Wheat or N40/F1) and several methods of applying biofertilizer (Fla Wheat) (b1: 100% Seed treatment, b2: 100% by irrigation, b3: 50% seed treatment with 50% by irrigation). RESULT: According result of analysis of variance effect of different level of fertilizer combination, method of application fertilizer and interaction effect of treatments on all measured traits (instead leaf area index, net assimilation rate and crop growth rate) was significant. Mean comparison result of different level of Fertilizer combination indicated that maximum total dry matter, leaf area index, net assimilation rate, crop growth rate and seed yield was noted for N100/F0 and minimum of that belonged to N40/F2 treatment (along all growth stages). As for Duncan classification made with respect to different level of Method of application fertilizer maximum and minimum amount of significant traits belonged to M3 and M2 treatment. CONCLUSION: The use of 70% nitrogen treatment with Fla Wheat biofertilizer (despite a 28% reduction in grain yield and 23% grain protein compared to the control) leads to less chemical fertilizer consumption and a move towards sustainable agriculture and is recommended to farmers. Also apply of Fla Wheat 50% at seed treatment with 50% by irrigation lead to achieve maximum amount of measured traits.