Influence of organic and inorganic fertilization on soil fertility and productivity of soybean (Glycine max)

A field experiment was conducted at Pantnagar, during the rainy season (kharif) of 2002 and 2003, to assess the effect of various fertilizer and manurial treatments on soybean [Glycine max (L.) Merr]. Integrated use of rec- ommended fertilizers with supplementary nutrients increased the yield attributes and yield. Increase in yield var- ied from 58.7 to 124.4% and 61.9 to 136.9% during 2002 and 2003, respectively, over the control. Highest yield attributes (podslplant, and 100-seed weight), harvest index, grain yield as well as NPK uptake was recorded with the application of 100% recommended dose of NPK + FYM Q 10 tonneslha. Use of organic sources helped in maintaining soil fertility in terms of available nutrients.