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VOL. 6, ISSUE 6 (2021)
Significance of integrated plant nutrition system (IPNS) practices on biological yield and NPK uptake of groundnut and redgram in legume based intercropping system
Authors
Rex Immanuel R, K Sivasakthi, G B Sudhagar Rao
Abstract
An integrated plant nutrition system (IPNS) practice has a significant potential to counterbalance the growing nutrient demands and to sustain the crop productivity on long term basis. A field experiment was conducted at Chandirambadi village of Thiruvannamalai District, Tamil Nadu during April – August, 2019 (Chithirai Pattam) to study the effect of IPNS on biological yield and NPK uptake of groundnut and redgram. The experiments were laid out in a Randomized Block Design and were replicated thrice with 13 treatment combinations viz., T1 - Farmer’s practice, T2 - 75% RDF to Groundnut, T3 – 100% RDF to Groundnut, T4 – 125% RDF to Groundnut, T5 - 75% RDF + Vermicompost (5 t ha -1) to Groundnut, T6 - 100% RDF + Vermicompost (5 t ha -1) to Groundnut, T7 - 125% RDF + Vermicompost (5 t ha -1) to Groundnut, T8 – 75% RDF to Groundnut + Foliar Spray to Redgram (2% DAP & NAA 40 ppm), T9 – 100% RDF to Groundnut + Foliar Spray to Redgram (2% DAP & NAA 40 ppm), T10 - 125% RDF to Groundnut + Foliar Spray to Redgram (2% DAP & NAA 40 ppm), T11 - 75% RDF + Vermicompost (5 t ha -1) to Groundnut + Foliar Spray to Redgram (2% DAP & NAA 40 ppm), T12 - 100% RDF + Vermicompost (5 t ha -1) to Groundnut + Foliar Spray to Redgram (2% DAP & NAA 40 ppm) and T13 - 125 % RDF + Vermicompost (5 t ha -1) to Groundnut + Foliar Spray to Redgram (2% DAP & NAA 40 ppm). The results revealed that the integrated application of 75 per cent RDF (12.75: 25.5: 40.5 kg N, P2O5 and K2O ha-1) along with vermicompost (5 t ha-1) to groundnut and foliar spray to redgram @ 2% DAP and NAA 40 ppm at flowering stage can be attributed the highest biological yield (5.81 3.79 t ha-1 for groundnut and redgram, respectively) and NPK uptake (148.00, 18.4 and 118 kg ha-1 for groundnut and 58.17, 9.07 and 42.25 kg ha-1 for redgram), agronomic efficiency (75.45, 37.72 and 25.65 kg kg-1) and unit area efficiency (59.02 g m-2 day-1) of groundnut + redgram intercropping system.
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Pages:749-753
How to cite this article:
Rex Immanuel R, K Sivasakthi, G B Sudhagar Rao "Significance of integrated plant nutrition system (IPNS) practices on biological yield and NPK uptake of groundnut and redgram in legume based intercropping system ". International Journal of Botany Studies, Vol 6, Issue 6, 2021, Pages 749-753
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