Biases in Nutrient Management Planning
研究发现,养分管理规划在大型谷物或养牛农场中更常见,但独立顾问和化肥经销商更倾向于建议增加化肥用量,存在偏差;而自己制定规划的农民则更可能建议减少用量,揭示了隐藏信息。
Nutrient management planning is seen as a means of improving efficiency and reducing environmental problems, however, these gains may not be realized if plans overstate fertilizer requirements. Using data from a survey of Maryland farmers, we find that nutrient management planning was adopted more frequently by larger operations raising grain or cattle, but not by those on more environmentally sensitive land. Independent consultants and fertilizer dealers were more likely to recommend increases in fertilizer use, consistent with fears about bias. Farmers preparing their own plans were more likely to recommend decreases in fertilizer use, suggesting the presence of hidden information. <i></i>