Effect of Humic Acid and Complete Micronutrient Fertilizer on Growth and Economic Yield of Different Bread Wheat Cultivars (Triticum aestivum L.)
2021
Taleshi, Kazem | Osooli, Nooshin | Khavari, Hadi
In order to evaluate the effect of humic acid and complete micronutrient fertilizer on growth and economic performance of different bread wheat cultivars, a factorial experiment was conducted on the base of randomized complete block design with three replications in Biranshahr region (Lorestan province) during two years in 2015-16 and 2016-17. The main factors included nutrition at four levels (control, humic acid, complete fertilizer 20-20-20 and humic acid + complete fertilizer 20-20-20) and bread wheat cultivars as sub-factors included (Mihan, Sivand and Alvand). The results showed that the number of spikes per square meter, number of seeds per spike, 1000-seed weight, biological yield, and grain yield and harvest index of wheat cultivars were influenced by the studied factors. The highest economic yield (8296 kg/ha) was obtained in the treatment of humic acid application + complete micronutrient fertilizer in Alvand cultivar. The highest number of spikes per m2 was related to humic acid feeding treatment in Alvand cultivar with an average of 625 spikes per m2. The highest number of seeds per spike was obtained in the treatment with humic acid feeding along with complete fertilizer in Alvand cultivar with an average of 45.2. The highest 1000-seed weight was related to feeding with humic acid + complete fertilizer with an average of 42.0 g. Interaction of humic acid with complete fertilizer in Alvand cultivar has produced the highest biological yield (19156 kg/ha). The highest harvest index (43.6%) was observed in complete fertilizer feeding treatment in Alvand cultivar. Findings showed that the application of humic acid along with chemical fertilizers increases the quality and quantity of agricultural products and maintains the balance of the environment.
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