花椰菜氮磷钾施肥效应及其适宜用量研究

Studies on fertilization effect and suitable amounts of nitrogenphosphorus and potassium on cauliflower

摘要: 花椰菜是永春县蔬菜种植的主栽品种之一。采用“3414”肥料试验设计方案,通过田间试验研究花椰菜氮磷钾肥效及其推荐施肥量,结果表明:施用适宜用量的氮磷钾肥料,花椰菜经济产量分别可增产179.8%、74.7%和122.3%;在本试验条件下,每667 m²施肥量为N 15.7~20.7 kg、P₂O₅ 4.9~8.1 kg和K₂O 11.0~16.1 kg,三要素平均比例为1∶0.36∶0.72。

Abstract: Cauliflower is one of the main vegetable cultivars planted in Yongchun County. In this paper, a field test on fertilization effect and suitable amounts of nitrogen, phosphorus and potassium on cauliflower was carried out by using “3414” experimental design method. The results showed that the economic yields of cauliflower could increase by 179.8%, 74.7% and 122.3% respectively by applying suitable amounts of nitrogen, phosphorus and potassium. And under this experimental conditions, the adequate fertilization amounts of N, P₂O₅ and K₂O were15.7~20.7 kg/667 m² (235.5~310.5 kg/hm²), 4.9~8.1 kg/667 m² (73.5~121.5 kg/hm²) and 11.0~16.1 kg/667 m² (165~241.5 kg/hm²) respectively, the suitable ratio of three essential factors was 1∶0.6∶0.4.