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2月 (“立春”至“雨水”) 花前施一次以磷钾为主、氮肥为辅的速效肥 ,叶面喷施 0 1%硼砂加 0 1%硫酸镁加 0 2 %～ 0 3%磷酸二氢钾两次。或喷 0 15%天然芸薹素 50 0 0～ 750 0倍液 1～ 2次。摘穗疏花 ,短截过长花穗 ,以留 12～ 15ｃｍ为宜。花期做好放蜂传粉和人工授粉工
In February (“Spring” to “Rain”), a quick-acting fertilizer supplemented mainly by phosphorus and potassium and supplemented by nitrogen fertilizer was applied pre-flowering. 0 1% borax plus 0 1% magnesium sulfate plus 0 2% to 0 3% Potassium dihydrogen phosphate twice. Or spraying 0 15% natural Brassica pigment 50 0 ~ 750 0 times 1 to 2 times. Picking sparse flowers, spikes long flower spike to stay 12 ~ 15cm is appropriate. Florescence and pollination done artificial pollination workers