"I'm excited about our progress," says Brown, who harvests eggs for Denver-based NestFresh Eggs and is adding more cover crops that draw worms and crickets for the chickens to eat.
“对于我们所取得的进步，我感到很兴奋。”布朗说。他采收的鸡蛋供货于总部位于丹佛的NestFresh 蛋品公司，而且他正在种植更多的覆土作物，以招引蠕虫和蟋蟀供鸡食用。
These plants are called cover crops.
群山覆盖着各种植被。
European vetch much cultivated as forage and cover crops.
欧洲的一种野豌豆，通常被用来制草料和覆盖作物。
European vetch much cultivated as fora ge and cover crops.
欧洲的一种野豌豆，通常被用来制草料和覆盖作物。
Legume cover crops must be planted, when new plantations are established.
在新种植园建立时必须种植豆科保护作物。
Monoculture practices can incorporate multiple cropping systems by using rotations, borders, and cover crops.
单一做法，可以将复种轮作系统的使用，边界，覆盖作物。
Other organic tactics for boosting soil quality include cover crops (aka "green manure"), crop rotation and composting.
其他增大土壤肥力的策略包括作物肥田(亦作“绿肥”)、轮种和堆肥。
Cover crops can improve the water holding ability of soil; however, its effect on soil hardness depends on the moisture content of soil.
覆盖作物可改善土壤持水能力，但是对土壤硬度的影响与土壤含水率有关。
The most environmentally benign form of agriculture appears to be "no till" farming, which involves little or no ploughing and relies on cover crops and carefully applied herbicides to control weeds.
最环保的农业生产方式似乎是“免耕”播种，这一生产方式很少或不再耕作，依赖表层植被并谨慎使用除草剂。
Area and production data on sugar cane and sugar beets generally cover all crops harvested, except the crops grown explicitly for feed.
甘蔗和甜菜的面积和产量数据一般包括所有的收获作物，已确定用于饲料而种植的作物除外。
It is estimated that GM crops cover almost 4% of total global arable land.
估计通用汽车公司庄稼几乎覆盖4%的总全球可耕地。
When the floods cover their lands they cannot grow crops or raise animals.
当洪水淹没土地时，他们无法种植农作物或是饲养动物。
When the floods cover their lands they cannot grow crops or raise animals.
当洪水淹没土地时，他们无法种植农作物或是饲养动物。
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