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Soil health checkup

机译:土壤健康检查

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摘要

Dust storms, rills and gullies, soil crusting, runoff, ponding — these are aboveground signs of poor soil health. And below ground: weak soil aggregation, compaction, impaired biological life, restricted water infiltration, stagnant smell, gray color.The prime culprit? Tillage. "The two factors most detrimental to soil health are erosion and loss of soil organic matter," says Doug Karlen, a soil scientist at the USDA-Agricultural Research ServiceNational Laboratory for Agriculture and the Environment in Ames, Iowa. "Tillage is a contributor to both."To see how your tillage practices are affecting your soil's health, Karlen suggests examining a few shovels full of "the dynamic material supporting your livelihood."
机译:沙尘暴,小溪和沟壑,结cru,径流,积水-这些都是土壤健康状况不佳的地上迹象。地下:土壤团聚能力弱,压实,生物生命受损,水渗透受限,气味停滞,颜色呈灰色。耕作。美国农业部农业研究服务国家农业与环境国家实验室的土壤科学家道格·卡伦说:“对土壤健康最有害的两个因素是土壤有机质的侵蚀和流失。”为了了解耕作方式如何影响土壤健康,Karlen建议研究一些铲子,其中装满了“支持生计的动态材料”。

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