Farmers say they must plow under some of the stalks, cobs and leaves to reinvigorate the soil but can harvest most of this plant matter.
农民表示必须埋下一些玉米杆、玉米轴和叶子以回复地力，但大部份的玉米作物原料都可以采收。
Based on an example from Datong Coalmines Group, the paper analyses possibility and usage of heavy plow under the conditions of thin seam coal face with Two Hard Roofs and gives out some proposals.
介绍了新型刨煤机的主要性能和结构特点以及使用条件，结合晋城矿区煤层赋存条件，论证了刨煤机在晋城矿区使用能大幅度地提高综采工作面煤炭块率。
Most good agricultural land is already under plow, and each year desertification, improper irrigation and overuse take millions of acres out of production.
大部分良田目前都已经被开垦，而每年的沙漠化、不当的灌溉以及土地的滥用，使得数百万英亩的土地长不出农作物。
Large areas of rough grazings were brought under the plow.
大面积的劣等草场均进行了翻耕。
Effected by soil temperature and the other physical properties, the biomass and yield are less under no-tillage than that under plow tillage.
受土壤温度等物理性状的影响，免耕地作物生物量及产量明显不如翻耕地。
Large areas of rough grazings were brought under the plow.
大是地多人多，地多还不如说是山多，可耕地面积并不多。
Large areas of rough grazings were brought under the plow.
大是地多人多，地多还不如说是山多，可耕地面积并不多。
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