怎样提高大白菜播种质量保证等距全苗生产中，人们常以为大白菜的栽培技术没有黄瓜、番茄等蔬菜所要求的生产技术水平高，但要想获得高产，就必须从播种开始下功夫。因此，提高播种质量是保证大白菜一次播种苗全、苗齐、苗壮，减少小苗次苗，提高产量和商品等级的基础。为... How to improve the quality of Chinese cabbage sowing Isometric seedling production, people often think that the cultivation techniques of Chinese cabbage without cucumber, tomato and other vegetables required high level of production technology, but in order to obtain high yield, we must start from the sowing time. Therefore, to improve sowing quality is to ensure that the first sowing seedlings of Chinese cabbage, Miao Qi, Miao Zhuang, reduce the number of secondary seedlings, increase production and product grade basis. for...