A cover crop is a crop you grow for the benefit of the soil. They add organic matter to the soil and add nitrogen in a slow-release way. 它们也可以用作覆盖物. Many types of plants can be used as cover crops – ryegrass, 大麦, 小麦, 和毛叶苕子, 举几个例子.
Use 体育外围平台’s extensive range of resources to further build your knowledge and expand your cover crop expertise. Topics covered in this section include managing soil quality with cover crops, 以及虫害和疾病管理.
覆盖作物是豆类等植物, 草, 芸苔属植物, and buck小麦 that are primarily used to slow erosion 改善土壤健康. 然而,有 种植覆盖作物有很多原因. They also help control pests and diseases and smother weeds. Cover crops also help 作物生产 by enhancing water availability.
They are often grown outside of the normal growing season, which in 宾西法尼亚 is the six-month period from October to April.
种植覆盖作物是为了使土壤受益, rather than as a source of income; however, 它们可以被收获, 这一过程被称为两熟. 因此，它在农场中起着至关重要的作用 企业管理 – not only does it protect the soil over winter, but it also provides additional forage for cattle and livestock.
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Cover crops’ primary role in agronomy is to slow erosion, 提高水的可用性, 改善土壤健康. They also increase biodiversity and bring many more benefits. 覆盖作物豆类品种, 比如红三叶草或冬豌豆, will fix or capture nitrogen from the air and add it to the soil.
Producers have demonstrated success using cover crops to increase crop yields, improve 土壤肥力, add organic matter to the soil, break through a plow pan, and improve crop diversity.
There is also increasing evidence that cover crops are very beneficial in areas that experience erratic and increasingly intensive rainfall, as well as in areas that regularly experience drought conditions.
覆盖作物在农业生产中起着不可或缺的作用 可持续农业 作物生产. 它们不仅有助于减缓侵蚀, 改善土壤健康和肥力, 但它们也可以帮助防治害虫和 杂草管理. In 宾西法尼亚, for example, aggressive cover crop species such as cereal rye and forage radish are being used. Because species such as these are so good at suppressing weeds, the need for herbicide application is often reduced.
覆盖作物制种 is extremely regional; however, their benefits can be enjoyed nationwide. 覆盖作物有很多好处, but there’s not one single species that does it all, 有很多 物种和品种 可供选择. 小心选择覆盖作物 ultimately depends on individual agronomic producer’s goals.
Producers who want to be able to reap multiple benefits turn to 覆盖作物混合物. a的成功 覆盖作物混合 depends on each species providing the desired services in balance with other species in the mix. 实践农学专业人士，如 认证的作物顾问, will be able to offer advice and suggestions on the best cover crops to use.