种作物都要选择一个好的前茬,合理调配茬口是提高作物产量和农业劳动生产率经济而有效的措施,是所有作物全面稳产增产的基础。自古以来,我国农民对倒茬就极为重视,1400年前的古农书中,对茬口问题就有着不同程度的论述,在长期农业生产实践中,积累了极为丰富的经验,“种地无巧,三年二倒”,“倒茬如上粪”等农谚,是生动的 Crops should choose a good stubble. Reasonable stubble cropping is an economical and effective measure to increase crop yield and agricultural labor productivity. It is the basis for a steady increase of all crops. Since ancient times, peasants in our country have attached great importance to the problem of stubble. In the book of ancient farmers of 1400 years ago, there were different degrees of discussion on the issue of stubble. In the long-term practice of agricultural production, they accumulated extremely rich experience, Three years down two “,” down stubble on the above fecal "and other farming proverbs, is vivid