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Indian Journal of Pure & Applied Biosciences (IJPAB)
Year : 2020, Volume : 8, Issue : 4
First page : (184) Last page : (189)
Article doi: : http://dx.doi.org/10.18782/2582-2845.8176

Evaluation of Yield and Quality of Groundnut under High Density Plantations with Graded Levels of Phosphorus

Sunilkumar, T.* , Sumathi, V., ReddiRamu, Y., Nirmal Kumar, A. R. and Karuna Sagar, G.
Department of Agronomy, S. V. Agricultural College, Tirupati, Andhra Pradesh 517 502, India
*Corresponding Author E-mail: suniltammi7082@gmail.com
Received: 15.05.2020  |  Revised: 24.06.2020   |  Accepted: 29.06.2020 

 ABSTRACT

A field experiment was laid out in randomized block design with factorial concept during rabi, 2019-20 to study the evaluation of yield and quality of groundnut under high density planting (22.5 x 10 cm -4.44 lakh ha-1; 20 x 7.5 cm - 6.66 lakh ha-1; 22.5 x 5 cm - 8.88 lakh ha-1 with graded levels of phosphorus (25, 37.5, 50 and 62.5 kg P2O5 ha-1). The investigation disclosed that dry matter production and phosphorus uptake of groundnut at different crop growth stages increased with graded increase in plant density from 4.44 to 8.88 lakh ha-1 and graded increase in phosphorus application from 25 to 62.5 kg P2O5 ha-1. All yield parameters i.e., number of pods plant-1, pod yield, kernel yield and shelling percentage was higher at plant density of 4.44 lakh ha-1. Among phosphorus levels, application of 50 kg P2O5 ha-1 recorded higher pod yield and kernel yield. Haulm yield was higher at plant density of 8.88 lakh ha-1 and decreased with decrease in plant density. Pod yield was significantly influenced by interaction between plant densities and phosphorus levels, it was higher at plant density of 4.44 lakh ha-1 in conjugation with 50 kg P2O5 ha-1. The experimental results showed that groundnut grown at  plant density of 4.44 lakh ha-1 with 50 kg P2O5 ha-1 resulted in higher yield and economic returns. However, when farmers are opting for high density planting, maintenance of groundnut population of 6.66 lakh ha-1 in conjugation with 62.5 kg P2O5 ha-1 will be optimum for better returns.

Keywords: Groundnut, Plant density, Phosphorus

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Sunilkumar, T., Sumathi, V., ReddiRamu, Y., Nirmal Kumar, A.R. & Karuna Sagar, G. (2020). Evaluation of Yield and Quality of Groundnut under High Density Plantations with Graded Levels of Phosphorus, Ind. J. Pure App. Biosci. 8(4), 184-189. doi: http://dx.doi.org/10.18782/2582-2845.8176