Yield and chemical composition of soybean seed under different irrigation regimes in the Vojvodina region
2017
Branka, Kresović | Bosko Andrija, Gajic | Angelina, Tapanarova | Goran, Dugalić
The goal of the present research is to determine an effective sprinkler irrigation strategy for soybean [Glycine max (L.) Merr.] in temperate climate conditions, in order to maximize yields and seed quality. A three-year field experiment with four different irrigation treatments was conducted on Calcic Chernozem in the Vojvodina region of Serbia. The irrigation regimes included: no irrigation; full irrigation (I<sub>100</sub>); and two deficit irrigation treatments – 65% of I<sub>100</sub> (I<sub>65</sub>) and 40% of I<sub>100</sub>. The irrigation treatments generally had a statistically significant effect on the increase of soybean yield and protein content. Irrigation did not have a significant effect on the oil content. In general, irrigation increased K, P, Mg, Mn, Cu, Zn and B concentrations and decreased Ca and Fe concentrations in soybean seed. The results show that irrigation with the largest amount of water (treatment I<sub>100</sub>) provided no potential benefit in terms of soybean yield and chemical composition. Treatment I<sub>65</sub>, which exhibited the most favourable watering conditions, is the best choice to maximize yield and ensure a good chemical composition of soybean under these agroecological conditions.
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