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一、播种 要选用发育充实,粒大饱满,发芽率高,无病虫害的种子。深翻苗床,耙平畦面,浇透水,待水完全渗下后播种。覆土厚度为种子直径的2倍,播后盖浸湿的稻草或苇帘,以保持湿度。幼苗出土前若畦面干燥,可向苇帘喷水,不可畦浇,以免冲散种子,影响出苗。待叶子出土时揭去覆盖物。 二、间苗 一般在子叶发出后进行。出苗后,将过密苗疏拔掉,扩大幼苗间距,使空气流通,日照充足,防止病虫害发生。
First, the selection of seeding to enrich the development, large grain full, high germination rate, no pests and diseases of the seeds. Depth of seedling bed, rake flat noodles, drenched water, to be completely infiltrated after sowing. Cover the soil thickness of 2 times the seed diameter, sow the straw after the cover wet or reed curtain to maintain humidity. If the noodles before the seedlings unearthed dry noodles, water can be reed curtains, must not pour water, so as not to break up the seeds, affecting emergence. When the leaves unearthed uncovered. Second, the seedlings are generally carried out after the cotyledons issued. After emergence, the sparsely populated sparse out, expanding the seedling spacing, the air circulation, sunshine sufficient to prevent pests and diseases.