Hydrogel-based Trichoderma formulation effects on different varieties of rice under rainfed condition of Indo-Gangetic Plains

Dujeshwer K., Ram Kumar Singh, Hanuman Singh Jatav (), Rajendra Lakpale, Mujahid Khan, Vishnu D. Rajput and Tatiana Minkina
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Dujeshwer K.: Banaras Hindu University
Ram Kumar Singh: Banaras Hindu University
Hanuman Singh Jatav: Sri Karan Narendra Agriculture University
Rajendra Lakpale: Department of Agronomy, Indira Gandhi Krishi Vishwavidyalaya
Mujahid Khan: Sri Karan Narendra Agriculture University
Vishnu D. Rajput: Southern Federal University
Tatiana Minkina: Southern Federal University

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2022, vol. 24, issue 5, No 43, 7035-7056

Abstract: Abstract Increased global CO2 emissions may result in erratic weather conditions, especially uncertain, pertaining to rainfall uncertainties and temperature anomalies, and could reduce India’s overall rice production by 3–10% under medium- to high-emission scenarios. The water crises nowadays have been prioritized as one of the top five global risks. Further, the uncertainties in rice production due to climate change will be more than just rice yield reductions. Several adoption strategies such as direct seeding, selecting water stress-tolerant varieties, enhancing soil water-holding capacity and improving crop management practices, are suggested to address the risks of rice production. Keeping in view the above fact, a field experiment was initiated during kharif season of 2015 and 2016 at Agricultural Research Farm (BHU), Varanasi, Uttar Pradesh (India), to assess the effect of super-absorbent polymer (hydrogel) and Trichoderma in rice varieties with six hydrogel-based Trichoderma-formulated treatments. The results indicated that Trichoderma was found effective in improving crop growth, yield, nutrient uptake and water use efficiency with the application of hydrogel. It was also found that soil amendment with hydrogel at 2 g m−2 and sowing of Trichoderma-treated seed at 10 g kg−1 seed significantly improved the crop growth parameters (viz. shoot dry weight by 6.45%), yield parameters (viz. number of productive tillers by 12.32%, number of grains per panicle by 8.26%), nutrients uptake and water use efficiency (by 24.15%) over control. The present study reveals that the use of hydrogel with Trichoderma fungus is found effective in enhancing the growth and yield parameters of rice in Indo-Gangetic Plains (IGPs).

Keywords: Crop growth rate; Rice; Water use efficiency; Nutrients uptake; Super-absorbent polymer (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10668-021-01738-w

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