Evaluation of the Effect of Different Amounts of Natural and Artificial Soil Modifiers on Biological Yield and Grain Yield of Wheat

Document Type : Research Paper


1 MSc student of Irrigation and Drainage. Sari Agricultural Sciences and Natural Resources University

2 Dept. of Water Eng., Faculty of Agricultural Eng., Sari Agricultural Sciences and Natural Resources University

3 Assistant Professor. Department of Water Engineering. Sari Agricultural Sciences and Natural Resources University

4 Assistant Professor. Department of Water Engineering. Kashmar high education institute


In order to evaluate the effect of different amounts of natural and artificial soil modifiers on biological yield and grain yield of wheat, an experiment was conducted at the research farm of Kashmar high education institute. In this research, experimental treatments were included: four levels of A200 hydrogel (0(V0), 1(V1), 2 (V2) and 3 (V3) grams per kilogram of soil), four levels of vermicompost (0(V0), 2 (V1), 3 (V2) and 4 (V3) grams per kilogram of soil) and three levels of irrigation (40 (W1), 20 (W2) and 0 (W3) percentage of moisture loss). The experiment was carried out in a randomized completely block design in a factorial arrangement in a pot experiment in 144 pots. The results showed that the highest amount of biomass and grain yield in S3V3W3 treatment were 81.7 and 35 gram in the pot respectively, and the lowest biomass and grain yield were in S0V0W1 treatment of 35 and 10.2 gram in the pot respectively obtained. Application of A200 hydrogel and vermicompost had increased biological yield by 31.88% and 18.5% and grain yield by 23.5% and 20.25%, respectively. Under the conditions of this experiment, the interaction effect of A200 hydrogel and vermicompost compounds was not significant. The effect of A200 hydrogel and vermicompost on the grain yield was significant, as the highest value of grain yield was obtained in the treatment of 2 g/kg A200 hydrogel and 3 g/kg vermicompost and the highest value of biological yield was obtained in the treatment of 3 g/kg A200 hydrogel and 4 g/kg vermicompost. Separately use of A200 hydrogel and vermicompost is recommended for achieving maximum biological yield and grian yield.


Main Subjects

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