采用“3414”设计方案进行田间试验,探讨施用氮、磷、钾肥用量及其比例对黑龙江省西部、中部和东部地区甜菜产量、含糖率及产糖量的影响。结果表明,肥料施用量以120kg/hm^2N、90kg/hm^2P2O5、90kg/hm^2K2O获得甜菜最高产量和最高产糖量,对甜菜的增产效果为氮〉磷〉钾,在试验条件下的最佳施用比例为:西部地区1:0.60:0.44,中部地区1:0.41:0.19,东部地区1:0.51:0.48。
Based on the "3414" fertilizer experiment design, field trials in the western, central and eastern region of Heilongjiang Province were conducted to study the effects of N, P, K fertilizers suitable ratio on yield, sugar content and sugar yield. The results indicated that:Using fertilizer amounts of N、 P2 05 and K20 for experiment were120kg/hm^2N、90kg/hm^2P2O5、90kg/hm^2K2O in order to gain the maximum yield and maximum sugar yield and their effects on yield were in order of N 〉 P 〉 K. The results showed that the recommended ratio of N: P2O5:K2O were 1:0.60: 0.44 in the western region, 1 : 0.41 : 0.19 in the central region and 1 : 0.51 : 0.48 in the eastern region.