Modelling adaptation strategies towards climate smart red gram production in Tamil Nadu

Authors

  • PRADIPA CHINNASAMY ICAR- KVK, Salem, Tamil Nadu Agricultural University, TamilNadu, India
  • PANNEERSELVAM SHANMUGAM Retired Professor of Agronomy, Tamil Nadu Agricultural University, India
  • GEETHALAKSHMI VELLINGIRI Vice Chancellor, Tamil Nadu Agricultural University, India
  • JAGANATHAN R Vice Chancellor, Periyar University, Salem, India
  • BHUVANEESWARI K. CARDS, Tamil Nadu Agricultural University, Coimbatore, Tamil Nadu, India
  • S. VIGNESWARAN Institute of Forest Genetics and Tree Breeding, Coimbatore

DOI:

https://doi.org/10.54386/jam.v25i4.2280

Keywords:

Red gram, Climate change, climate smart agriculture, adaptation, Agroclimatic zones

Abstract

Assessing the pulse of an important legume crop, red gram (Cajanus cajan L.) of Tamil Nadu under changing climate and framing adaptation strategies were formulated using the DSSAT model. The assessment was done for the popular variety of red gram, viz., CO(RG)7 with August 1st as sowing date, under constant CO2 (380ppm) and CO2 enrichment. The adaptation strategies such as altering the sowing date and 25 per cent increment in nitrogenous fertilizer were carried out with CO2 enrichment conditions.  The yield was found to be adversely affected by the warming scenario of the climate system without CO2 fertilization. With the incorporation of enriched CO2 data, the average yield increases until the end of the century, but with temporal and spatial variations. Among the different agro climatic zones of Tamil Nadu, highest yield was recorded in Western Zone and lowest in Southern Zone. There was no response to application of Nitrogenous fertilizer. July 15 sowing was identified to be the best sowing for the base as well as future period for CO(RG)7.

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Published

30-11-2023

How to Cite

CHINNASAMY, P., SHANMUGAM, P., VELLINGIRI, G., R, J., K., B., & VIGNESWARAN, S. (2023). Modelling adaptation strategies towards climate smart red gram production in Tamil Nadu. Journal of Agrometeorology, 25(4), 525–531. https://doi.org/10.54386/jam.v25i4.2280

Issue

Vol. 25 No. 4 (2023): December (Silver Jubilee Publication)

Section

Research Paper

Categories

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Copyright (c) 2023 PRADIPA CHINNASAMY, PANNEERSELVAM SHANMUGAM, GEETHALAKSHMI VELLINGIRI, JAGANATHAN R, BHUVANEESWARI K., S. VIGNESWARAN

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