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Economics of nitrogen fertiliser application in rice, wheat and maize grown in the indo-gangetic plains

Autor: Satyanarayana, T.
Autor: Majumdar, K.
Autor: Shahi, V.
Autor: Kumar, A.
Autor: Pampolino, M.
Autor: Jat, M.L.
Autor: Singh, V.K.
Autor: Gupta, N.
Autor: Singh, V.
Autor: Dwivedi, B.S.
Autor: Kumar, D.
Autor: Malik, R.K.
Autor: Sidhu, H.S.
Autor: Johnston, A.
Año: 2012
Resumen: Nitrogen (N) is a key factor for cereal production in India. N is predominantly supplied to the plants through fertiliser application. The average response to applied fertiliser N has been declining steadily over the past decades. As a result, farmers are compelled to apply higher doses of fertiliser N to maintain the yields of the preceding years. Considering the increasing demand of N fertiliser in the coming years, wide variability in soil N supplying capacity and wide production gaps in the predominant cereals, the present on-farm study was undertaken in the Indo-Gangetic Plains (IGP). The objective was to estimate response of cereals (rice, wheat and maize) to N application, the economics and profitability of N application with changing fertiliser price scenario. On-farm results indicated yield loss due to N omission to the tune of 667-3337 kg ha-1in rice, 500-4750 kg ha-1 in wheat and 400- 5160 kg ha-1 in maize. On the other hand, optimum use of N at observed N response levels, current and projected prices of N fertiliser and minimum support price of rice, wheat and maize had return on investment e? 3 indicating increasing significance of precise N management in cereals in the IGP. Results also suggest that advanced strategies of N management considering the indigenous N supplying capacity of soil, yield response, and agronomic efficiency of N at a given environment may become an important tool for improving farm profitability from N use in IGP.
Lenguaje: English
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Tipo: Article
Pais: Nepal
Pais: India
Pais: Bangladesh
Pais: Pakistan
Región: South Asia
Paginas: 62-71
No de Revista: 8
Revista: Indian Journal of Fertilisers
Volumen de la Revista: 8

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  • Sustainable Intensification
    Sustainable intensification agriculture including topics on cropping systems, agronomy, soil, mechanization, precision agriculture, etc.

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