文章基本信息

标题：Revisiting N fertilisation rates in low-rainfall grain cropping regions of Australia: A risk analysis
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作者：Monjardino, Marta ; McBeath, T. ; Brennan, Lisa E. 等
期刊名称：Journal of Agribusiness
印刷版ISSN：0738-8950
出版年度：2012
期号：Suppl
出版社：Journal of Agribusiness
摘要：Mallee farmers minimize downside risk in dry seasons by applying low rates of nitrogen (N) fertiliser to their cereal crops. The opportunity to respond to and capitalize on the better years is further limited as most inputs are applied upfront at sowing. We used an economic-risk decision model to identify a range of tactical N fertilisation options that increase net returns, while minimising risk for farmers with different risk attitudes. Importantly, we concluded that when accounting for long-term risks affecting farmers, the use of higher N rates can play a risk-reducing role in a highly variable environment like the Mallee.
关键词：Nitrogen;risk;variance;crop simulation;economic net returns;decision analysis;zone management;Monte Carlo;Mallee