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1 选地与隔离1.1 制种田的选择制种田宜选在平肥地或者土层较厚的二坡地,贫瘠山地、盐碱、低洼易涝地不宜作制种田。1.2 隔离区的界定必须严格划定安全隔离去,为了确保制种质量,四周空间隔离应在300m以上。2 错期播种与密度2.1 播种期当制种地块土壤5～10cm温度稳定通过12℃时即可播种,播种前
1 Selection and isolation 1.1 The choice of farming system of farming should be selected in the flat or thick soil or two slopes, barren mountains, saline, low-lying flood-prone land should not be used for farming. 1.2 The definition of isolation area must be strictly delineated safety isolation, in order to ensure the quality of seed production, the surrounding space should be isolated in more than 300m. 2 wrong sowing and density 2.1 sowing time when the planting plots of soil 5 ~ 10cm temperature stable by 12 ℃ when sowing, before sowing