Comparative assessment of organic, integrated and precision nitrogen management on growth, productivity and economics of wheat (Triticum aestivum) 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 ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
SHIVA DHAR ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
KAPILA SHEKHAWAT ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
ANCHAL DASS ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
SHASHANK PATEL ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
HUCHCHAPPA JAMAKHANDI ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
PRAKASH SONNAD ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
RAGHAVENDRA S J ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
PRAVEEN KUMAR GOWDA N M ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
BHARATH G ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
UJWALGOWDA H S ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India

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

Keywords:

Compost, Farmyard manure, Green Seeker, Integrated nitrogen management, Precision nitrogen management

Abstract

Integrated nitrogen management involving organic manure such as FYM, leaf compost and mungbean residue compost with inorganic fertiliser along with precision nitrogen management through GreenSeeker is vital for optimising the yield potential of wheat (Triticum aestivum L.). The present study was carried out during winter (rabi) seasons of 2023–24 and 2024–25 at ICAR-Indian Agricultural Research Institute, New Delhi for optimising wheat productivity through integrated and precision nitrogen management. The experiment was laid out in a randomised complete block design (RCBD) having 14 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 the treatments, 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 fertiliser). The net returns (9.6%) were also higher than inorganic treatment (100% N through fertiliser). The organic treatments, viz. 100% N FYM, 100% N LC and 100% N MRC has incurred higher cost of cultivation than inorganic, integrated, and integrated with precision treatments. Among organic treatments, 100% N MRC has incurred higher cost of cultivation. 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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