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首页> 外文学位 >The impacts of agricultural price policies on the adoption of integrated pest management by subsistence farmers: A case study of irrigated rice farmers in the Philippines.
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The impacts of agricultural price policies on the adoption of integrated pest management by subsistence farmers: A case study of irrigated rice farmers in the Philippines.

机译：农产品价格政策对自给农民采用病虫害综合治理的影响：以菲律宾灌溉稻农为例。

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摘要

Agricultural price policies raise important implications on farmers' adoption of integrated pest management or IPM. High support prices are said to induce farmers to apply pesticides in a non-judicious and inefficient manner. Pesticide subsidies affect usage at the margin, resulting in higher input use than necessary to achieve optimal profits. Very limited empirical studies lend support to these issues concerning subsistence rice farmers.;A whole farm simulation model, FLIPSIM V, is used to evaluate farm-level impacts of agricultural price policies on the adoption of IPM by subsistence irrigated rice farmers in the Philippines. Different IPM adoption levels are explicitly modelled as knowledge adoption levels based on sampled farmers' composite scores of a field skills test on recommended IPM practices. Regional price differentiation is used as a proxy for two price policy scenarios. Stochastic dominance criteria are then used to rank adoption preferences of farmers with different attitudes towards risk.;The study's results support the hypothesis that low rice and high chemical prices enhance the full adoption of IPM among irrigated rice farmers. Confidence premiums as measures of conviction reveal a strong preference for the full adoption strategy held by both intermediate adopters and non-adopters whose incomes come strictly from rice farming. Farmers' preferences, however, are not necessarily translated into actual adoption behavior since earnings from other farm and off-farm enterprises tend to offset the IPM benefits on the economic performance of full adopter farms.;The study also finds that the attractiveness of the full adoption strategy from the perspective of non-adopters and intermediate adopters is no longer apparent under low yield and low rice price conditions and is not influenced by the degree of yield risks confronting irrigated rice farmers. Given the levels of chemical prices used in the study, pesticide price changes have no measurable effects on farmers' adoption preferences for IPM. On the other hand, output price adjustments tend to motivate intermediate adopters toward fully adopting the IPM technology. IPM-practising farmers generally spend less money on pesticides than non-adopters, but lower pesticide expenditures are not always reflected in higher net cash incomes since farmers' may spend more on other variable cost items. This finding, among others, highlights the importance of analyzing the benefits of the IPM technology from a whole farm perspective rather than from a marginal analysis of direct costs and benefits.
机译：农产品价格政策对农民采用病虫害综合治理或病虫害综合防治产生重要影响。据说高昂的支持价格诱使农民以非明智和低效的方式使用农药。农药补贴会影响利润的使用，从而导致投入物使用量高于实现最佳利润所必需的投入量。非常有限的实证研究为这些与生存稻农有关的问题提供了支持。整个农场模拟模型FLIPSIM V用于评估农产品价格政策对菲律宾自给自足灌溉稻农采用IPM的农场层面影响。根据对推荐IPM做法的实地技能测试的抽样农民综合得分，将不同的IPM采用水平明确地建模为知识采用水平。区域价格差异被用作两种价格策略方案的代理。然后，采用随机优势标准对风险态度不同的农民采用收养偏好进行排序。研究结果支持以下假设：低米价和高化学价可提高灌溉稻农对IPM的充分采用。置信溢价作为一种定罪手段，显示出强烈偏爱收入完全来自稻谷种植的中级采用者和非采用者所采用的完全采用策略。然而，农民的偏好并不一定会转化为实际的收养行为，因为其他农场和非农场企业的收入往往会抵消IPM对全收养农场的经济绩效带来的收益。该研究还发现，全收养农场的吸引力在低产量和低稻米价格的情况下，从非采用者和中级采用者的角度来看，采用策略不再明显，并且不受灌溉稻农面临的产量风险程度的影响。考虑到研究中使用的化学品价格水平，农药价格变化对农民采用IPM的偏好没有可衡量的影响。另一方面，产出价格的调整往往会促使中级采用者完全采用IPM技术。实施病虫害综合防治的农民通常在农药上的支出要比不采用农药的农民少，但农药支出的减少并不总是反映在较高的净现金收入中，因为农民可能在其他可变成本项目上花费更多。除其他外，这一发现突出了从整个农场角度分析IPM技术收益的重要性，而不是对直接成本和收益进行边际分析的重要性。

著录项

  • 作者

    Binamira, Jesus Sainz.;

  • 作者单位

    Texas A&M University.;

  • 授予单位 Texas A&M University.;
  • 学科 Economics Agricultural.
  • 学位 Ph.D.
  • 年度 1991
  • 页码 285 p.
  • 总页数 285
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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