Effect of concentrate manure and inorganic fertilizers on soil electro-chemical properties and productivity of rice {Oryza sativa L.) under inceptisol of Varanasi

Abstract

A field experiment was conducted in kharif season of 2009 at Agricultural Research Farm, BHU, Varanasi. The aim of this work was to focus the effect of concentrated manure (wellgrow grain and wellgrow soil) and inorganic fertilizers on nutrient status and yield of submerged rice soil of Varanasi. Significant improvement in terms of nutrient availability like nitrogen, phosphorus and potassium with application of 100% NPK+200 kg wellgrow grain/ha and at par with application of 100% NPK+300 kg wellgrow soil/ha (T8) and 100% NPK+300 kg wellgrow grain/ha (T9). Treatment receiving 100% NPK+300 kg wellgrow grain/ha resulted in maximum grain yield (45.47 q/ha). Treatment (T8) maintained higher straw yield (79.9 q/ha) due to application of 100% NPK along with 300 kg wellgrow soil/ha, whereas it was at par with application of 75 and 100% NPK with both the levels of wellgrow formulation.