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Response of wheat yield and dry matter remobilization to the combined application of green, organic, and chemical fertilizers
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Esfandiar Fateh   , Esfandiar Fateh * , Ali Monsefi , Amir Aynehband |
| Shahid Chamran University of Ahvaz |
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Abstract: (15 Views) |
The experimental design was split plot based on randomized complete block design in three replications, in the research farm of the Faculty of Agriculture of Shahid Chamran University during the crop year of 2023-24. The main factor was the type of organic matter in five levels including 1- no residues, 2- wheat residues, 3- a mixture of sesame and mung bean residues, 4- barley and clover green manure and 5- Sesbania green manure). The sub-factor of fertilizer management methods in four treatment levels were: 1- Completely chemical based on the recommended N-P-K amount (50-75-90), 2- Combined: 75% chemical fertilizer+ supernitroplus biological fertilizer (3 ml) and barvar-2 (100 g. ha-1)+ mixed fertilizer with micronutrient elements (spraying solution), 3- Organic 1: compost (20 tons. ha-1), supernitroplus (3 ml)+ biosulfur (5 kg. ha-1)+ barvar-2 (100 g. ha-1)+ humic acid (300 mg. l-1) and jasmonic acid 0.1 mM (spray solution) and 4- organic 2 (vermicompost fertilizer in the amount of 10 tons. ha-1, mycorrhizal fungus in the amount of 100 g.m-2, supernitroplus (3 ml)+ salicylic acid (1 mM). Grain yield, biomass yield, stomatal conductance and greenness index were 49, 38, 85 and 19 percent higher in the treatment of barley and clover green manure application than in the treatment without plant residues. It was also observed among the fertilization levels that in terms of these traits, they were 22, 13, 25 and 15 percent higher under the combined fertilization treatment than the chemical fertilizer treatment alone. Examination of dry matter storage and remobilization traits also showed that the highest mean stem dry matter remobilization and remobilization efficiency were related to the integrated fertilization treatment under both barley + clover and Sesbania green manure conditions. However, the contribution of remobilization to final grain yield determination was higher in the chemical and organic 2 fertilization treatments under both no-residue and wheat-residue conditions than in the other treatment levels.
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| Keywords: Photosynthetic material remobilization, biosulfur, sustainable agriculture and green manure. |
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Full-Text [PDF 931 kb]
(10 Downloads)
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Type of Study: Research |
Subject:
Crop Physiology
Received: 2025/11/16 | Accepted: 2026/03/4 | Published: 2026/03/4
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