Effects of Foliar Application of Nitrogen and Molybdenum on the Uptake of Nitrogen, Seed Yield and its Quality of Soybeans (<em>Glycine max</em> (L.) Merr.)

Abstract

Effects of foliar nutrition of soybeans (cv.PB-I) with nitrogen and molybdenum on the seed yield and its quality are reported. Nitrogen uptake was positively affected by the foliar application of nitrogen. Foliar applcation of 1% ammonium nitrate solution t30kgN/ha) during the early pod-fill period has significantly increased the seed yield and the % protein in seeds. This effect was further enhanced by incorporation of 0.05 % ammonium molybdate in the spray solution. Application of nitrogen: 3.0kgN/ha at two leaves tV22), 15kgN/ha at early flowering (RI-R2) and 30kgN/ha at early pod-fill (R4-R5) periods had a better effect on the seed yield and the % protein in seeds. The highest seed yield (1727 kg/ha), protein yield (703.4 kg/ha) and fats (351.6 kg/ha) were recorded in the fertilizer treatment where nitrogen was applied together with molybdenum at all three stages of growth.

Effect of Rhizobium Inoculation Under Bio- And Mineral Fertilization and Their Interaction on Quality and Quantity of Soybean (Glycine Max L.)

“…Deficiency of this element causes a reduction of nodule dry weight . In this concern , Ranaweera (1992) reported that nitrogen and molybdenum application had a significant effect on increasing nitrogen percent and uptake at different growth stages as well as protein percentage and yield in soybean seeds . Also , Liu et al (2005) reported that molybdenum significantly prompted accumulation of root and a aboveground biomass of soybean .…”