Comparative assessment of organic, integrated and precision nitrogen management on growth, productivity and economics of wheat (Triticum aestivum L.) under Trans Indo-Gangetic Plains

Sudarshan S; SHIVA DHAR; KAPILA SHEKHAWAT; ANCHAL DASS; SHASHANK PATEL; HUCHCHAPPA JAMAKHANDI; PRAKASH SONNAD; RAGHAVENDRA S J; PRAVEEN KUMAR GOWDA N M; BHARATH G; UJWALGOWDA H S

doi:10.56093/ijas.v96i7.173786

Authors

Sudarshan S Ph.D scholar
SHIVA DHAR PRINCIPAL SCIENTIST
KAPILA SHEKHAWAT PRINCIPAL SCIENTIST
ANCHAL DASS PRINCIPAL SCIENTIST
SHASHANK PATEL PHD SCHOLAR
HUCHCHAPPA JAMAKHANDI PHD SCHOLAR
PRAKASH SONNAD PHD SCHOLAR
RAGHAVENDRA S J MSC SCHOLAR
PRAVEEN KUMAR GOWDA N M PHD SCHOLAR
BHARATH G PHD SCHOLAR
UJWALGOWDA H S PHD SCHOLAR

https://doi.org/10.56093/ijas.v96i7.173786

Abstract

Integrated nitrogen management involving organic manure such as FYM, leaf compost and mungbean residue compost with inorganic like fertilizer along with precision nitrogen management through GreenSeeker is vital for optimizing the yield potential of wheat (Triticum aestivum L.). The present study was carried out during winter (rabi) seasons of 2023–24 and 2024–24 at ICAR-Indian Agricultural Research Institute, New Delhi for optimizing wheat productivity through integrated and precision nitrogen management. The experiment was laid out in a randomized complete block design (RCBD) having fourteen treatments with three replications. The combination of integrated and precision nitrogen management showed overall superior response in terms of growth, yield and economics of wheat than organic, inorganic and integrated treatments. Among, 50% N through FYM + rest as GS-guided resulted in significantly higher plant height, dry-matter accumulation, number of tillers, leaf area index, crop growth rate, relative growth rate and economics. This treatment led to significantly higher grain (13.7-14.4%), straw (3.6-4.3%) and biological (1.1-7.9%) yields than inorganic treatment (100% N through fertilzer). The net returns (9.6%) were also higher than inorganic treatment (100% N through fertilzer). The organic treatments; viz. 100% N FYM, 100% N LC and 100% N MRC has incurred higher cost of cultivation than inorganic, integrated, integrated with precision treatments. Among organic treatments, 100% N MRC is higher. Therefore, the study suggests that the adoption of integrated nitrogen management with precision could potentially reduce cost of cultivation, as well as enhance the growth and productivity of wheat.

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