Integrated nutrient management for sustaining wheat (Triticum aestivum) production under late sown condition Pandey I.B., Dwivedi D.K.*, Pandey R.K.1 Department of Agronomy, Rajendra Agricultural University, Pusa, Samastipur, Bihar 848 125. * Corresponding author: (E mail: dkdagro@rediffmail.com).
1 Department of Soil Science. Abstract A field experiment was conducted at research farm of Rajendra Agricultural University, Pusa, Samastipur during the rabi seasons of 2002–03 and 2003–04 to find out the effect of integrated nutrient management on productivity of late sown wheat (Triticum aestivum L.). Addition of 10 t/ha FYM + 25 kg ZnSO4/ha together with RDF (recommended dose of fertilizers i.e. 120-26.2–33.3 kg N-P-K/ha), 125% RDF and 150% RDF recorded significantly higher values of yield attributes, grain (3.5–3.7, 3.6–3.8 and 3.8–3.9 t/ha, respectively) and straw (5.2–5.4, 5.3–5.5 and 5.5–5.6 t/ha, respectively) yields than application of RDF (2.9–3.1 t/ha), 125% RDF (3.2–3.5 t/ha) and 150% RDF (3.3–3.6 t/ha) alone. Application of 10 t FYM/ha with RDF produced similar grain yield (3.4–3.6 t/ha) as the yield obtained under 150% RDF alone (3.3–3.6 t/ha). Application of 150% RDF together with 10 tonnes FYM + 25 kg ZnSO4/ha although produced maximum grain yield (3.8–3.9 t/ha), however, highest benefit: cost ratio (1.5–1.7) was obtained with 10 t FYM/ha together with RDF only. Addition of 10 t FYM with fertilizers levels significantly increased the nutrient uptake by the crop, improved the organic carbon content, N, P and K status and significantly reduced the bulk density of the soil as compared to chemical fertilizer alone. Top Key words Economics, Integrated nutrient management, Nutrient uptake, Wheat, Yield. Top |