农药

• A more critical evaluation of pesticides in this regard, particularly newer compounds, is advisable .
  这方面对农药，特别是较新的化合物的批判性的评价是适当的。
• The effect of water content on diffusion of pesticides under very dry conditions has been investigated .
  人们曾经研究了在十分干燥的情况下水分含量对农药扩散的影响。
• Nonbiological degradation processes play an important role in the dissipation of many pesticides in soil .
  非生物降解过程在消除土壤中的许多农药方面起着重要的作用。
• An additional factor which can affect solubility of a pesticide is the presence of electrolytes in the solution .
  能影响农药溶解度的另一个因素是溶液中电解质的存在。
• Organic farms incurred lower production costs because of their nonuse of pesticides and more expensive fertilizers .
  有机农场因不用农药和较贵的化肥，故生产费用较低。
• Farmers add fertilizer to the soil to make plants grow better , or spray poison to kill plant pests .
  农民为了使作物长得更好而给土壤施化肥或者为了杀死害虫而喷撒农药。
• Examples of successful application improvements are low volume sprays, foams, and granular soil applications .
  成功的应用实例包括少量喷撒、泡沫剂及农药颗粒剂的土壤施用。
• Agricultural soils are the ultimate recipient and depository of most applied foliar and soil pesticides .
  喷撒于叶面和用于土壤的农药大多以农业土壤为其最终受体和贮存场所。
• When farmer spray poison to kill plant pests , poison is sent into the air the water and the soil .
  当农民为了杀死害虫而喷洒农药的时候，有毒物就被排放到空气中，水里和土壤里。
• Particulate matter in soils and aquatic systems reacts with and influences the biological activity of pesticides .
  土壤和水系统中的颗粒物质都与农药的生物活动起反应，并影响后者。