Enhancing productivity, economics and energy efficiency through precision nitrogen and water management in conservation agriculture-based maize (Zea mays) in the Indo-Gangetic Plains

SANDEEP  KUMAR; VINOD KUMAR  SINGH; KAPILA  SHEKHAWAT; PRAVIN KUMAR UPADHYAY; B S  DWIVEDI; SANJAY  SINGH RATHORE; AVANEESH KUMAR; ARVIND  YADAV

doi:10.56093/ijas.v94i3.145735

Authors

SANDEEP KUMAR National Bureau of Soil Survey and Land Use Planning, Jorhat, Assam
VINOD KUMAR SINGH ICAR-Central Research Institute for Dryland Agriculture, Hyderabad, Telangana
KAPILA SHEKHAWAT ICAR-Indian Agricultural Research Institute, New Delhi
PRAVIN KUMAR UPADHYAY ICAR-Indian Agricultural Research Institute, New Delhi
B S DWIVEDI ICAR-Agricultural Scientists Recruitment Board, New Delhi
SANJAY SINGH RATHORE ICAR-Indian Agricultural Research Institute, New Delhi
AVANEESH KUMAR ICAR-National Dairy Research Institute, Karnal, Haryana
ARVIND YADAV ICAR-National Rice Research Institute, Cuttack, Odisha

https://doi.org/10.56093/ijas.v94i3.145735

Keywords:

Conservation agriculture, Energy equivalents, Green Seeker, Precision irrigation

Abstract

Present study focuses on improving maize productivity, economics, and energy efficiency in the Indo-Gangetic Plains through the integration of CA, precision nitrogen and water management. Maize grain yield significantly differed among treatments, with CA outperforming CT by 13.3%, recording the highest yield with optimal N application (N₃) and irrigation at 25% DASM. The CA incurred 23.7% lower cultivation costs (₹30,421/ha) compared to CT. Gross returns and net returns were higher under CA (₹1,16,007/ha and ₹85,586/ha) with a net benefit ratio of 2.78, showcasing its economic viability. Energy efficiency was a crucial aspect considered, with CA proving to be 33.1% more energy-efficient than CT. In different irrigation regimes, CA with W₂ treatment exhibited superior energy parameters. The study also highlighted the significance of optimal N scheduling (N₃) in achieving higher economic returns (₹97,927/ha) compared to conventional N splits (N₁) and its integration. The most effective integration involved combining CA with precision N management (75% basal, GreenSeekerTM-guided top dressing) and irrigation at 25% DASM, resulting in higher grain yield (7.21 t/ ha), gross returns (₹132,497/ha), and impressive energy output (230,831 MJ/ha). In conclusion, CA, especially when combined with optimal irrigation and nitrogen management, not only enhances maize yield and economic returns but also proves to be more energy-efficient, promoting sustainable and resource-efficient agricultural practices. The study recommends this integrated approach for enhancing maize productivity, energy efficiency and economic returns.

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References

Devasenapathy P, Kumar S G and Shanmugam P M. 2009. Energy management in crop production. Indian Journal of Agronomy 54(1): 80–90.

Gomez K A and Gomez A A. 1984. Statistical Procedures for Agricultural Research. John Wiley & Sons.

Humphreys E, Kukal S S, Christen E W, Hira G S and Sharma R K. 2010. Halting the groundwater decline in north-west India which crop technologies will be winners? Advances in Agronomy 109: 155–217.

Jat M L, Gathala M K, Saharawat Y S, Tetarwal J P and Gupta R. 2013. Double no-till and permanent raised beds in maize- wheat rotation of north-western Indo-Gangetic plains of India: Effects on crop yields, water productivity, profitability and soil physical properties. Field Crops Research 149: 291–99.

Jat H S, Jat R D, Nanwal R K, Lohan S K, Yadav A K, Poonia T, Sharma P C and Jat M L. 2020. Energy use efficiency of crop residue management for sustainable energy and agriculture conservation in NW India. Renewable Energy 155: 1372–82.

Kumar S, Singh V K, Upadhyay P K, Shekhawat K, Dwivedi B S and Kumar A. 2021. Effect of precision nitrogen and water management on growth, productivity, and water budgeting of maize (Zea mays) grown under different crop-establishment techniques. Indian Journal of Agronomy 66(2): 234–36.

Kumar S, Singh V K, Shekhawat K, Upadhyay P K, Rathore S S and Didawat R K. 2022. Real time nitrogen and irrigation management for enhanced productivity and nutrient use efficiency of maize under conservation agriculture. The Indian Society of Agricultural Science 159.

Kumar S, Yadav A, Kumar A, Hasanain M, Shankar K, Karan S, Rawat S, Sinha A, Kumar V, Gairola A and Prajapati S K. 2023. Climate smart irrigation practices for improving water productivity in India: A comprehensive review. International Journal of Environment and Climate Change 19(12): 333–48.

Malhotra S K. 2017. Diversification in utilization of maize and production. (In) Proceedings of Gyan Manthan Conference:

Perspective of Maize Production and Value Chain. A Compendium, pp. 49–57.

Marschner H. 2011. Marschner's Mineral Nutrition of Higher Plants. Academic press.

Raun W R, Solie J B, Johnson G V, Stone M L, Mullen R W, Freeman K W, Thomason W E and Lukina E V. 2002. Improving nitrogen use efficiency in cereal grain production with optical sensing and variable rate application. Agronomy Journal 94(4): 815–20.

Sidhu D and Duiker S W. 2006. Soil compaction in conservation tillage. Agronomy Journal 98(5): 1257–64.

Singh B. 2014. Site specific and need based management of nitrogen fertilizers in cereals in India. Advances in Fertilizer Technology: Biofertilizers 2: 576–605.

Singh P, Benbi D K and Verma G. 2021. Nutrient management impacts on nutrient use efficiency and energy, carbon, and net ecosystem economic budget of a rice-wheat cropping system in north-western India. Journal of Soil Science and Plant Nutrition 21: 559–77.

Singh V K, Shukla A K, Singh M P, Majumdar K, Mishra R P, Rani M and Singh S K. 2015. Effect of site-specific nutrient management on yield, profit, and apparent nutrient balance under pre-dominant cropping systems of upper gangetic plains. ICAR.

Singh V K, Shukla A K, Singh M P, Majumdar K, Mishra R P, Rani M and Singh S K. 2016. Soil physical properties, yield trends and economics after five years of conservation agriculture-based rice-maize system in north-western India. Soil and Tillage Research 155: 133–48.