Integration of organic supplements and inorganic nutrients levels onproductivity and profitability of maize (Zea mays) in acidic soil of Assam

HUCHCHAPPA  JAMAKHANDI; SHIVA  DHAR; S S  RATHORE; LOHIT K  BAISHYA; SUNIL  MANDI; SUDARSHAN  S; SHASHANK  PATEL; PRAKASH  SONNAD

doi:10.56093/ijas.v95i4.160867

Authors

HUCHCHAPPA JAMAKHANDI ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
SHIVA DHAR ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
S S RATHORE ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
LOHIT K BAISHYA ICAR-Indian Agricultural Research Institute, Assam
SUNIL MANDI ICAR-Indian Agricultural Research Institute, Assam
SUDARSHAN S ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
SHASHANK PATEL ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India
PRAKASH SONNAD ICAR-Indian Agricultural Research Institute, New Delhi 110 012, India

DOI:

https://doi.org/10.56093/ijas.v95i4.160867

Keywords:

Inorganic nutrients levels, Maize, Net returns, Organic supplements, Partial factor productivity

Abstract

The field experiment was conducted during the rainy (kharif) season of 2023–24 to assess the impact of the integrated application of organic supplements and inorganic nutrients on maize in acidic soil. The highest grain, stover and biological yields and gross and net returns were obtained from the use of 10 t FYM/ha with 100% RDF (NPK). It was statistically similar to vermicompost @2.5 t/ha with 100% RDF (NPK) and FYM @10 t/ha with 75% RDF (NPK). This combination is also more cost-effective compared to other treatment combinations. Among organic supplements, the significantly highest PFP for N and P was obtained from the application of 10 t FYM/ha. Among inorganic nutrients levels, control recorded significantly higher PFP for N and P. Regular soil testing and the balanced use of organic and inorganic nutrients should be emphasized to optimize nutrient availability and enhance maize productivity, especially for acidic soil regions.

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