Previous Crops can not use crop diseases and soil pests susceptible seedlings serious land.

不可选用前茬作物对苗木易感染病害和地下害虫严重的土地。

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As the soil pests live in the soil depths, the pesticide spraying by ordinary sprayer can't enter into soil, It is very difficult to get rid of them.

由于地下病虫害发生在土壤深处，普通施药机械的药液难以深入土层，给防治带来困难。

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There's unpredictable weather, changes in soil quality, and the ever-present possibility that pests and diseases may pay a visit.

天气不可预测，土壤质量发生变化，害虫和疾病随时都可能出现。

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Those figures were mostly proven bogus by reality, as plans with no knowledge of conditions on the ground failed when confronted with the wildly variable conditions of soil, weather and pests that farmers had spent a lifetime learning to cope with.

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As a congressman, senator and vice president, he worked relentlessly toward creating disincentives to the development, testing and use of innovative, safe and potentially important technologies--especially biotechnology applied to agriculture, which has been instrumental in enhancing yields, reducing losses from pests and encouraging farming practices that prevent carbon dioxide release from tilling soil.

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