Harnessing Agro-chemicals for Resilient Green Gram: Strategies to Alleviate Moisture Stress in Rainfed Ecosystems: Harnessing agro-chemicals for resilient green gram

Pardeep  Phogat; Amarjeet Nibhoria; Ankit Singh; Ravi; Danveer Singh; Yogesh; Neetu Choudhary

doi:10.56093/jsswq.v17i2.171704

Authors

Pardeep Phogat Division of Soil and Crop Management, ICAR-CSSRI, Karnal, Haryana-132001 https://orcid.org/0009-0003-0545-145X
Amarjeet Nibhoria Department of Agronomy, CCS Haryana Agricultural University, Hisar, Haryana-125004
Ankit Singh Department of Soil Science, CCS Haryana Agricultural University, Hisar, Haryana-125004 https://orcid.org/0009-0006-7342-6864
Ravi Department of Agronomy, CCS Haryana Agricultural University, Hisar, Haryana-125004
Danveer Singh Department of Agronomy, CCS Haryana Agricultural University, Hisar, Haryana-125004
Yogesh Division of Soil and Crop Management, ICAR-CSSRI, Karnal, Haryana-132001
Neetu Choudhary Rajmata Vijayaraje Scindia Krishi Vishwa Vidyalaya, Gwalior, Madhya Pradesh, India

https://doi.org/10.56093/jsswq.v17i2.171704

Keywords:

Nutrient uptake, Potassium nitrate, Salicylic acid, Tragacanth katira, Vigna radiata, Water use efficiency

Abstract

A field experiment was conducted during the 2021 Kharif season to assess the effectiveness of agro-chemicals in mitigating moisture stress in green gram (Vigna radiata L.) under rainfed conditions. The study was executed in a Randomized Block Design with ten treatments, including a control, soil application of the herbal hydrogel Tragacanth katira, foliar sprays of salicylic acid (SA), potassium nitrate (KNO₃) and their various combinations. The primary objective was to evaluate the impact of these treatments on physiological traits, yield parameters, nutrient uptake and water use efficiency of green gram under rainfed conditions. Results consistently showed that the combined application of Tragacanth katira @ 5.0 kg ha^-1 along with a 1% foliar spray of KNO₃ at flowering and pod initiation (T10) stages proved to be the most effective treatment. While the treatments showed non-significant effects on root-shoot ratio and harvest index, T10 significantly enhanced the number of grains pod^-1(11.3, representing a 61.4% increase compared with the control) and extended the duration to physiological maturity (64.7 days, corresponding to a 8.19% increase over the control). This led to a substantial increase in grain yield (1178 kg ha^-1) and straw yield (2551 kg ha^-1), representing a 26.1 and 16.6% increase, respectively, over the control. Furthermore, T10 maximized N, P and K uptake and significantly improved both water use efficiency and water productivity. The findings underscore the synergistic benefits of integrating soil moisture conservation with foliar nutrient supply, demonstrating a viable and profitable strategy for enhancing green gram productivity in water-scarce environments.

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Harnessing Agro-chemicals for Resilient Green Gram: Strategies to Alleviate Moisture Stress in Rainfed Ecosystems