Vol. 11, Issue 10 (2022)

Author(s):
M Gowsalya, G Murugan, K Suseendran and R Kandasamy

Abstract:
A field experiment was conducted in the farmer’s field at Arasampalayam village, Rasipuram (Tk.), Namakkal (Dt.), Tamil Nadu during May-Sep, 2021 (Vaigasi Pattam) to study the impact of integrated nutrient management on nutrient uptake, post-harvest soil available nutrient status and agronomic efficiency of machine sown groundnut. The experiment was laid out in a Randomized Block Design (RBD) with three replications. The treatments consisted of T₀ – Absolute control (No organics and inorganics), T₁ – RDF through inorganic fertilizers (25:50:75 Kg N, P₂O_5, K₂O ha^-1), T₂ – 75% RDN + 25% N on equivalent basis of EFYM, T₃ – 50% RDN + 50% N on equivalent basis of EFYM, T₄ – 75% RDN + 25% N on equivalent basis of poultry manure compost, T₅ – 50% RDN + 50% N on equivalent basis of poultry manure compost, T₆ – T₂ + Foliar application of salicylic acid @ 100 ppm + TNAU groundnut rich @ 5.0 kg ha^-1 on 35 and 45 DAS, T₇ – T₃ + Foliar application of salicylic acid @ 100 ppm + TNAU groundnut rich @ 5.0 kg ha^-1 on 35 and 45 DAS, T₈ – T₄ + Foliar application of salicylic acid @ 100 ppm + TNAU groundnut rich @ 5.0 kg ha^-1 on 35 and 45 DAS, T₉ – T₅ + Foliar application of salicylic acid @ 100 ppm + TNAU groundnut rich @ 5.0 kg ha^-1 on 35 and 45 DAS. The results of this experiment showed that combined application of 75% RDN + 25% N on equivalent basis of poultry manure compost + Foliar application of salicylic acid @ 100 ppm + TNAU groundnut rich @ 5.0 kg ha^-1 on 35 and 45 DAS recorded highest nutrient uptake, post-harvest soil available nutrient status and agronomic efficiency recorded with significantly higher values.