文章基本信息

标题：INVESTMENT IN SITE SPECIFIC CROP MANAGEMENT UNDER UNCERTAINTY
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作者：Isik, Murat ; Khanna, Madhu ; Winter-Nelson, Alex 等
期刊名称：Journal of Food Distribution Research
印刷版ISSN：0047-245X
出版年度：1999
期号：SUPPL
出版社：Food Distribution Research Society
摘要：Recent technical innovations allow farmers to obtain spatially referenced data on nutrient content and soil quality of fields for site-specific crop management (SSCM). By targeting input applications more precisely within a field, SSCM has the potential to improve input utilization, increase input productivity, and raise crop yields. SSCM is a technological package that consists of several components such as satellite-based global positioning systems, grid soil sampling, variable rate fertilizer spreaders, and yield monitors. Despite the potential economic benefits of SSCM, the adoption rates among farmers are still low. For example, only 4% of farmers at the national level adopted variable rate technology and only 6% adopted yield monitors (Daberkow and McBride, 1998); the corresponding figures for the Midwest were 12% and 10% (Khanna et al., 1998).