Effect of N, P, K, Zn, Fe and FYM on nutrient uptake and yield of rice (Oryza sativa L.).

摘要

A field experiment was conducted on rice (var NDR-359, HUBR2-1) during kharif season of 2006-2007 and 2007-2008 consisting of two main plot treatments varieties (V₁-NDR-359 and V₂-HUBR2-1) and fertilizers (F₁-100% recommended fertilizer doses (RDF), F₂-75% RDF) and 9 sub plot treatment combinations M₀ (control), M₁ (Zn as soil application through Zn-EDTA 1.00 kg/ha), M₂ (Zn as foliar application through Zn-EDTA 0.5 kg/ha), M₃ (Fe as soil application through Zn-EDTA 1.00 kg/ha), M₄ (Zn as foliar application through Fe-EDTA 0.5 kg/ha), M₅ (Zn as soil application through Zn-EDTA 1.00 kg/ha+Fe as soil application through Fe-EDTA 1.00 kg/ha), M₆ (Zn as foliar application through Zn-EDTA 0.5 kg/ha+Fe as foliar application through Fe-EDTA 0.5 kg/ha), M₇ (Zn as foliar application through Zn-EDTA 1.00 kg/ha+Fe as foliar application through Fe-EDTA 0.5 kg/ha), M₈ (Fe as soil application through Fe-EDTA 1.00 kg/ha+Zn as foliar application through Zn-EDTA 0.5 kg/ha) arranged in split plot design and replicated three times. Among varieties and fertilizer level V₁ treatment recorded significantly higher NPK uptake, grain and harvest index than V₂ while in fertilizer levels F₂ treatment recorded significantly higher N, P, K, Zn and Fe uptake, grain and harvest index than F₁. Among the different micronutrient treatments M₇ recorded significantly higher N, P, K, Zn and Fe uptake, grain yield and harvest index over other treatments.