农户对风险管理策略的评价以及其对农户风险管理工具采纳意愿的影响尚不明晰。对此，本研究利用469份农户调研数据探究农户对农业保险和农业价格保险的评价以及他们的评价对其购买意愿的影响。此外，重点关注了农户对农业保险和农业价格保险评价和采纳意愿的差异。研究结果表明，农户之间的交流和经验可以显著提高他们对农业保险的评价，而提供足够的保险信息是提高农户对农业价格保险评价的有效方法。此外，农户对农业保险和农业价格保险的有利评价将显著提高农户的采纳意愿。本研究为农户的风险管理评价对其采纳意愿有重要影响提供有力的实证证据。为了提高农户对风险管理工具的评价并进一步促进农户对风险管理工具采纳，应加强农业保险和农业价格的保险政策宣传，确保农业保险和农业价格保险实施的效果，并为农户提供完善的保险服务。

Large amounts of Flaveria bidentis’s root culturing solution were obtained by using DFT (deep flow technique) equipment and these solution which was vacuum concentrated (10, 20 mg mL-1) can have a certain inhibition on Triticum aestivum, Cucumis sativus, Raphanus sativus, Amaranthus retroflexus, Setaria viridis, Chenopodium album, Echinochloa crusgalli and Chloris virgata. This outcome suggested some active compounds in the root exudates of Flaveria bidentis can inhibit the germination, seedling elongation and root length. The dichloromethane extract of root exudates was identificated by GC-MS, and 29 kinds of compounds, including esters, hydrocarbons, ketones, thiazole, amines, etc. were obtained and the phthalate n-octyl ester, phthalate 2-ethylhexyl ester were proved to be allelochemicals. The culturing solution of root exudates was separated through the resin column and silica gel column and a component inhibiting seedling height, root length and fresh weight of wheat was got. There were 6 kinds of organic compounds in this component including dioctyl phthalate, 1,2-phthalate, mono(2-ethylhexyl) ester by GC-MS.