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1苗床准备一定要选择无污染、地下水位浅、排水条件好、光照好的地块。温室的准备温室的规格:温室的高度为1.7m,宽度为5.4~6.0m,温室柱子之间的距离为60~70cm,长度要根据面积而定,苗床面积与大田面积比例为1:100较好。3营养土配制配制营养土的土应选用水、旱田土或山上的浅层土,不能使用施用过除草剂的旱田土。4种子及种子处理4.1种子标准2年更新1次(二级标准以上,纯度98%、纯净率97%,发芽率90%以上,发芽势86%、含水量14.5%以下)。
1 seedbed preparation must choose pollution-free, shallow water table, drainage conditions are good, good light of the land. Greenhouse preparation Greenhouse specifications: the height of the greenhouse is 1.7m, the width is 5.4 ~ 6.0m, the distance between the greenhouse columns is 60 ~ 70cm, the length should be determined according to the area, the ratio of seedling bed area to the field area is 1: 100 it is good. 3 Nutrient soil Preparation Nutrient soil should be used to prepare soil water, dry soil or mountain shallow soil, can not be used herbicide applied to dry soil. 4 seeds and seed treatment 4.1 seed standard 2 years update 1 (two standard, purity 98%, 97% pure, germination rate of 90% or more, germination potential 86%, water content 14.5% or less).