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R. P. Gnanamalar

Publications (4)

Improving Yield Potential of Pigeonpea through Foliar Nutrition

S. Anitta Fanish, L. Kartiba, P. S. Shanmugam & R. P. Gnanamalar · International Journal of Plant & Soil Science · 2022

A field experiment was conducted in research farm at Department of Pulses, Tamil Nadu Agricultural University during kharif season of 2018 to 2020 to assess the effect of foliar nutrition to enhance the productivity of pigeonpea under rainfed condition. The experiment was laid ou...

Open access Research Article 10.9734/ijpss/2022/v34i232599

Soil Test based Targeted yield equations for blackgram (Vigna mungo L.) through Integrated Plant Nutrition System on Alfisol

E. Amutha Sankari, R. Santhi, M. Gopalakrishnan, S. Maragatham & R. P. Gnanamalar · International Journal of Plant & Soil Science · 2022

Using Ramamoorthy's inductive methodology for assessing the soil test based crop requirement by adopting an Integrated Plant Nutrition System to create Fertilizer Prescription Equations (FPEs) for blackgram with the prime objective of attaining the targeted yield by the farmers....

Open access Research Article 10.9734/ijpss/2022/v34i2031178

Recalibration of Targeted Yield Equations through Integrated Plant Nutrition System for Greengram (Vigna radiata L.) on Alfisol

Chelli Lalitha, S. Maragatham, R. Santhi, R. Rajeswari, M. Gopalakrishnan & R. P. Gnanamalar · International Journal of Plant & Soil Science · 2022

In India, greengram (Vigna radiata L.) is a popular pulse crop. With the concern for achieving desired yield with ensured soil health, the Soil Test Crop Response (STCR) approach develops the fertilizer prescription equations (FPEs) for the desired yield in greengram by conductin...

Open access Research Article 10.9734/ijpss/2022/v34i2131262

Geospatial Distribution of Iron in Major Sugarcane Growing Soils of Sivagangai, Tamil Nadu, India

K. Chandrasekar, J. Prabhaharan, P. P. Mahendran, P. Saravana Pandiyan, A. Gurusamy, R. P. Gnanamalar & P. Kannan · International Journal of Plant & Soil Science · 2021

The present study was undertaken to assess the available DTPA iron status in the major sugarcane growing soils of Southern Sivangai district, Tamil Nadu, India. A total of 500 geo referenced surface (0-30 cm) were collected from five blocks viz., Kalaiyarkovil, Padamathur, Sivaga...

Open access Research Article 10.9734/ijpss/2021/v33i2430788