In land scarce area, methods to increase cropping index, increase crop yield and increase planting area of wheat and sweat potato are adopted in order to increase food energy production.
在人多地少地区，粮食、饲料的供应通过增加复种、提高单产以及增加甘薯、小麦种植面积来解决。
In land scarce area, methods to increase cropping index, increase crop yield and increase planting area of wheat and sweat potato are adopted in order to increase food energy production.
在人多地少地区，粮食、饲料的供应通过增加复种、提高单产以及增加甘薯、小麦种植面积来解决。
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