氮、磷、钾肥对大葱“明月”农艺性状及产量的影响

Effects of nitrogen,phosphorus and potassium on the agronomic traits and the yield of Japanese green Chinese onion variety “Ming Yue”of Allium fistulosum

以引进的日本大葱新品种"明月"为试验材料,采用L9(34)正交设计,研究氮、磷、钾肥对"明月"株高、单株重、葱白长、茎粗、产量的影响。结果表明:氮肥施用量、钾肥施用量和磷肥施用量对"明月"大葱的产量均有极显著影响,各因子水平的最佳组合为A_2B_3C_2,即施氮量为15 kg/667 m^2、钾肥12 kg/667 m^2、磷肥50 kg/667 m^2是大葱获得高产的最优施肥方案。

The effects of nitrogen （ N） , phosphorus （ P） and potassium （ K） on the agronomic traits such as plant height, plant weight, onion length and onion diameter and the yield of the introduced Japanese green Chinese onion variety “Ming Yue” of Allium fistulosum were studied in April - December 2014 in Anshun City Academy of Agricultural Science test beds by using L9 （34） orthogonal design. The results showed that the quantity of nitrogen, potassium and phosphorus all have significant effects on the yield of the“Ming Yue”variety. The best combination of each factor for the highest yeild is A2 B3 C2 , namely the quantity of nitrogen is 15 kg/667m2 , potassium 12 kg/667m2 , and phosphorus 50 kg/667m2 .