Economics of Trade-off Between Urea Nitrogen and Poultry Litter for Rice Production
Economics of Trade-off Between Urea Nitrogen and Poultry Litter for Rice Production
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水稻生产中尿素氮和家禽垫料之间的权衡经济学
DOI：
10.1017/s1074070800026468
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发表时间：
1994
影响因子：
1.9
通讯作者：
R. Norman
中科院分区：
文献类型：
--
作者：
R. Govindasamy;M. Cochran;David M. Miller;R. Norman
本文确定了适合水稻生产的尿素、新鲜凋落物和堆肥凋落物的最佳氮素组合。利用1991年在阿肯色州三个地点进行的实验结果的数据，采用了传统的成本最小化技术。不同方案之间的比较表明，使用家禽粪便和尿素氮之间的权衡取决于土壤肥力、对凋落物施用的产量反应以及氮和凋落物的相对价格等因素。在高目标产量下使用凋落物比在低目标产量下使用枯枝落叶更经济。
Abstract This paper identifies optimal combinations of nitrogen in the form of urea, fresh litter and composted litter for rice production. Traditional cost minimization techniques using data from experimental results conducted at three sites in Arkansas during 1991 have been employed. Comparisons between different scenarios indicate that the trade-off between the use of poultry litter and urea nitrogen depends on such factors as soil fertility, the yield response to litter application and the relative prices of nitrogen and litter. The use of litter is more economical at high target yields than at low target yields.