Effect of mineral nutrition on soybean production efficiency and protein content in seed
2001
Nedic, M. | Glamoclija, Dj. | Vuckovic, S. (Poljoprivredni fakultet, Beograd - Zemun (Yugoslavia))
The objective of the study was to analyze the effect of trace elements (B, Mn, Mo and Zn) as well as the mean NPK amount on some fertility traits, seed yield and total protein content in the seed. The following soybean cultivars were used: Aura and Hadley. Based on a three-year trial and the results obtained the conclusion which tends to emerge is a varying effect on soybean yield and total protein content in the seed following the application of trace elements used as mineral nutrition. Environmental factors, primarily humidity and the cultivars analyzed were found to be of major importance. The trace elements applied, especially Mn, Mo and Zn, were found to contribute considerably to the increase of the total nitrogen content in the soil as determined at the end of the soybean vegetation period. In the soybean cv. Hadley the effect of mineral elements on seed yield was more favourable. The less available trace elements in soil (Mo and Zn) were found to have a favourable effect on seed yield of cv. Aura as well but only in years favouring soybean growing (1995 and 1996). The effect of the mineral nutrients on seed number per plant was identical to that of seed yield. The effect of both major and trace elements on the content of total proteins in seed was positive and its intensity was effected by environmental factors and cultivars.
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