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Integrated weed and nutrient management improve yield, nutrient uptake and economics of maize in the rice-maize cropping system of Eastern India.pdf
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Journal article
Integrated weed and nutrient management improve yield, nutrient uptake and economics of maize in the rice-maize cropping system of Eastern India
Agronomy, Vol.10(12), Article 1906
2020
Abstract
Increasing productivity of maize while decreasing production costs and maintaining soil health are emerging challenges for the rice–maize system in South Asia. A range of integrated nutrient and weed management practices were tested in winter maize for their effects on yield, profitability, and soil health. The nutrient management treatments were a partial substitution of nitrogen with bulky (Farmyard manure; vermicompost) and concentrated organic manures (Brassicaceous seed meal, BSM; neem cake), whereas weed management practices compared chemical controls only versus an integrated approach. The N supplementation through BSM diminished the weed growth by reducing weed N uptake, and enhanced the maize crop uptake of nutrients. As compared to the sole chemical approach, atrazine-applied pre-emergence followed by hoeing reduced weed density by 58 and 67% in years 1 and 2, respectively. The N supplementation through BSM resulted in the maximum yield of maize grain (6.13 and 6.50 t ha−1 in year 1 and year 2, respectively) and this treatment increased yield in year 2 compared to N application through synthetic fertilizer. Hoeing in conjugation with herbicide enhanced the maize grain yield by 9% over herbicide alone. The maximum net return and economic efficiency were achieved with the application of BSM for N supplementation, together with the integrated weed management practice.
Details
- Title
- Integrated weed and nutrient management improve yield, nutrient uptake and economics of maize in the rice-maize cropping system of Eastern India
- Authors/Creators
- D. Ghosh (Author/Creator)K. Brahmachari (Author/Creator)M. Brestic (Author/Creator)P. Ondrisik (Author/Creator)A. Hossain (Author/Creator)M. Skalicky (Author/Creator)S. Sarkar (Author/Creator)D. Moulick (Author/Creator)N.K. Dinda (Author/Creator)A. Das (Author/Creator)B. Pramanick (Author/Creator)S. Maitra (Author/Creator)R.W. Bell (Author/Creator)
- Publication Details
- Agronomy, Vol.10(12), Article 1906
- Publisher
- Multidisciplinary Digital Publishing Institute (MDPI)
- Identifiers
- 991005539575707891
- Copyright
- © 2020 by the authors
- Murdoch Affiliation
- School of Agricultural Sciences
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.275 Crop Protection
- 3.275.705 Herbicide Resistance
- Web Of Science research areas
- Agronomy
- Plant Sciences
- ESI research areas
- Agricultural Sciences