在作物收获时,将一部分作物秆茎留在田地里,可以起到多方面的作用:一、对长期抵制土壤侵蚀是一个非常有用的武器;二、利用植化相克的原理,可以抑制和杀灭杂草;三、杆、茎、叶腐烂后,是很好的有机肥料。仅仅重视作物留田的肥料作用,是片面的不足的。一、经常保持土壤表面的复盖的必要性。将一部分作物杆茎留在地里,复盖土壤表面,可以显著减少土壤侵蚀,提高作物产量。各 When harvesting crops, leaving a part of the stalks and stems in the field can play a multifaceted role: First, it is a very useful weapon to resist soil erosion for a long time. Second, by using the principle of phytoremediation, Expose weeds; Third, stems, leaves decay, it is a good organic fertilizer. It is one-sided deficiency to focus solely on the role of fertilizers in crop cultivation. First, the need to constantly cover the surface of the soil. Keeping part of the crop stem in the ground and covering the soil surface can significantly reduce soil erosion and increase crop yields. each