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种田有个常识叫轮作,就是说同一块地里,连续种了几年小麦玉米,就要考虑种一年苜蓿或者豆子了。若是不换品种,把一种作物连
Farming has a common sense called rotation, that is to say the same piece of land, a continuous crop of wheat and corn for several years, we must consider planting a year of alfalfa or beans. If you do not change the species, even a crop