Effects of foliar fertilization and seed treatment with a preparation based on Co and Mo on soybean yield

Abstract

In this paper we studied the effect of foliar fertilization with a complex liquid fertilizer, that contains macro elements (N, P, K) and microelements (Mn, B, Zn, Co), and seed treatment with cobalt and molybdenum based preparation, on yield performance of three soybean cultivars, of different maturity groups. The application of the foliar fertilizer, in all three soybean cultivars, has achieved significantly higher yields, compared with the control variant and the variant with the preparation based on cobalt and molybdenum. Seed treatment with the cobalt and molybdenum based preparation, the emerged seedlings exhibited phytotoxic symptoms of excess of these heavy metals. Leaf tips and margins of these seedlings turned yellow, and the growth of these plants was retarded, which adversely affected their yield performance.

U radu je proučen uticaj folijarnog prihranjivanja soje, kompleksnim tečnim hranivom, sa makroelementima (N, P i K) i mikroelementima (Mn, B, Zn, Co), kao i tretiranje semena preparatom na bazi kobalta i molibdena na prinos tri sorte soje, različite grupe zrenja. Primenom folijarnog prihranjivanja, kod sve tri sorte soje, postignuti su statistički značajno veći prinosi, u odnosu na kontrolnu varijantu i varijantu sa primenom preparata na bazi kobalta i molibdena. Tretiranjem semena preparatom na bazi kobalta i molibdena, posle nicanja na mladim biljkama pojavili su se fitotoksični simptomi u vidu žućenja vršnih i rubnih delova lista, biljke su zaostale u porastu, što se negativno odrazilo na prinos.