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秸秆直接还田,在农业生产比较先进的国家,已是一种培肥地力、提高作物产量的正常耕作措施.近年来,我国不少省市进行了这方面的试验、示范和推广工作.为了探讨这项措施在我县对培肥地力和提高作物产量的影响,从1976年开始,我县连续五年进行了这项试验.
In the recent years, many provinces and cities in China carried out experiments, demonstrations and popularization work in this area in order to improve the productivity of crops. To explore the effect of this measure on the fertility enhancement and crop yield in our county. Since 1976, this county has conducted this experiment for five consecutive years.