Effect of Scheduling Irrigation Water and Adding Organic Matter and Bio-Fertilizer on the Concentration of some Nutrients in Wheat Plant (Triticum aestivum L.)

Abstract

Abstract A field experiment was applied during the agricultural season 2021-2022 in one of the farms located in Al-Muthanna Governorate. In order to study the effect of scheduling irrigation water and adding organic matter and bio-bacterial fertilizer on the concentration of some nutrients in the wheat plant (Triticum aestivum L.), the experiment was carried out by distributing split plates using a randomized complete block design R.C.B.D. With three replications, the experiment included three factors, as the coefficients of irrigation periods for the first factor were set in the main panels at two levels (50 and 75%) of the field capacity, and the factors of organic and biological fertilization in the secondary panels, the organic fertilizer treatments included the use of three The levels are (0 and 40 and 80 tons ha-1), while the biofertilization treatments were at two levels, namely (adding the bacterial vaccine and not adding it). The results indicated that the treatment of adding organic fertilizer at the third level, O2, was significantly superior to the rest of the treatments, and the highest values were recorded in nitrogen and phosphorous and potassium concentration in the vegetative total, achieving an increase of (12.05% and 81.08 % 23.74%) sequentially, and the phosphorous concentration in the grains (86.11%), while there was no significant increase for the treatments of adding organic matter in affecting the nitrogen and potassium content of the grains. Also, the biofertilization treatments showed a significant effect in some of these, and the highest values were recorded in both the nitrogen and phosphorous concentration in the vegetative total, with an increase of (5.51% and 13.68%), and the nitrogen and phosphorous concentration in the grains (29.86% and 17.11%) sequentially but regarding as for the potassium concentration in vegetative total and grains, it was not significantly affected by the treatments of adding the bacterial vaccine to it. While the irrigation periods showed a significant effect only on the adjective phosphorous concentration in the grains