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花椰菜俗称菜花,在露地和保护地栽培过程中,常出现花球小、花球松散、黑心、花球开裂,白花球变淡黄色,紫绿色等异常现象。1 肥水管理应选择肥沃土壤,施足基肥,分期追肥。在整个生长期中需要有充足的氮素营养,在花球生长期中还需要大量的磷、钾元素。缺少磷肥花球小,易散花;缺少钾肥,容易发生黑心病。花椰菜对硼、镁等微量元素有特殊要求,缺硼时常引起球
Cauliflower commonly known as cauliflower, open field and protected areas in the cultivation process, there are often small flower ball, flower ball loose, black heart, flower ball cracking, pale yellow ball, pale purple and other anomalies. 1 fertilizer and water management should choose a fertile soil, Shizujifei, staged top dressing. In the entire growing season need adequate nitrogen nutrition, flower bulbs also need large amounts of phosphorus and potassium elements. Lack of phosphate flower ball small, easy to scattered flowers; lack of potash, prone to black heart disease. Cauliflower boron, magnesium and other trace elements have special requirements, lack of boron often cause the ball