水稻是我国人民的主要粮食作物。杂交水稻为我国粮食生产作出了巨大贡献,其种植面积占水稻年播种面积的50％以上。但随着我国耕地面积的减少,粮食需求的增加,水稻单产有待进一步提高,提倡良种良法,科学种田就尤为重要。 一、适时早播,培育多蘖壮秧 在茬口允许的情况下,播种愈早愈好,沿淮地区一般5月上中旬播种为宜。可采用下列两种育秧方式。 Rice is the staple food crop for our people. Hybrid rice has made great contribution to the grain production in our country. Its acreage accounts for more than 50% of the sown area of ​​rice. However, with the reduction of cultivated land area in our country, the increase of grain demand, the per unit area yield of rice needs to be further improved, and the promotion of improved seed law and scientific farming are especially important. First, timely early sowing, nurturing more tiller seedling stubble allowed in the case of cropping the sooner the better, along the Huaihe area in May on the mid-seeding appropriate. The following two kinds of seedlings can be used.