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近年来，京丰一号甘蓝在邯郸市种植面积有了较大发展。为进一步提高制种产量，市种子监督检验站近年来连续进行了磷酸二氢钾、硼肥对制种的效应３开花末期施肥对制种的效应；辅助授粉对制种的效应等对比试验。 试验处理：磷酸二氢钾和硼肥试验设４个处理（喷磷酸二氢钾溶液；硼
In recent years, Jingfeng No. 1 cabbage planting area in Handan has made great progress. In order to further improve the seed production, the Municipal Seed Supervision and Inspection Station has continuously carried out the effects of potassium dihydrogen phosphate and boron fertilizer on seed production in recent years. 3 The effect of late flowering and fertilization on seed production; Comparative experiment on the effect of auxiliary pollination on seed production. Test treatment: potassium dihydrogen phosphate and boron fertilizer test set up four treatments (potassium dihydrogen phosphate solution; boron