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一、播种育苗1.播前准备选择排灌条件良好,土质肥沃,疏松、保肥水,3年未种过葱类作物的沙壤地块,亩施有机肥2500公斤,做成平畦等待播种。2.适期播种及方法洋葱育苗一般在9月上、中旬,早熟品种可早播几天,中、晚熟品种在白露后播种,播种过早提前春化,易抽苔,播种过晚不易形成壮苗,不能安全越冬,因此,各地要选择最佳播种期。
First, sow seedling 1. Prepare to choose before sowing irrigation and drainage conditions are good, fertile soil, loose, fertile water, 3 years have not been planted onions in the sand soil plots, Mushi Shi 2500 kilograms of organic fertilizer, made flat 畦 awaiting sowing. 2. Sowing and the appropriate methods of onions nursery generally in September, mid-early maturity varieties can be sowed a few days, middle and late varieties sowed in the white dew, sowing ahead of vernalization, easy to moss, sown too late difficult to form Strong seedlings, can not be safe wintering, so, to choose the best sowing period around.