Effects of halving pesticide use on wheat production.

Effects of halving pesticide use on wheat production.
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DOI:
10.1038/srep04405
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发表时间:
2014-03-20
期刊:
影响因子:
4.6
通讯作者:
Makowski D
Makowski D
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Hossard L;Philibert A;Bertrand M;Colnenne-David C;Debaeke P;Munier-Jolain N;Jeuffroy MH;Richard G;Makowski D

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农药对人类健康和环境都构成严重威胁。在欧洲,鼓励农民减少农药的使用,法国最近的一项环境政策确定了到2018年将农药使用量减半的目标。有机和综合种植系统已被提出作为减少农药使用的可能解决方案,但减少农药使用对作物产量的影响尚不清楚。在这里,我们使用一组种植系统实验来量化法国冬小麦农药使用减少所造成的产量损失。我们估计,如果减少50%的农药用量,所造成的产量损失相当于当前农药用量所获得的产量的5%至13%。在全国范围内,这些损失将使法国小麦产量减少约200万至300万吨,约占法国小麦出口的15%。
Pesticides pose serious threats to both human health and the environment. In Europe, farmers are encouraged to reduce their use, and in France a recent environmental policy fixed a target of halving the pesticide use by 2018. Organic and integrated cropping systems have been proposed as possible solutions for reducing pesticide use, but the effect of reducing pesticide use on crop yield remains unclear. Here we use a set of cropping system experiments to quantify the yield losses resulting from a reduction of pesticide use for winter wheat in France. Our estimated yield losses resulting from a 50% reduction in pesticide use ranged from 5 to 13% of the yield obtained with the current pesticide use. At the scale of the whole country, these losses would decrease the French wheat production by about 2 to 3 millions of tons, which represent about 15% of the French wheat export.
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