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[目的]寻求适合伊犁地区甜菜适宜的肥料用量及比例。[方法]从伊犁地区甜菜肥料高效利用角度出发,设置了氮、磷、钾3因素4水平试验,根据获得的产量对氮、磷、钾肥料效应进行模拟,研究适宜的肥料用量及比例。[结果]甜菜产量与氮、磷、钾施用量的三元二次效应方程为y=3 319.323 7+297.974 9N-8.429 7P-8.860 2K-6.940 5N_2-2.628 9P2-1.159 8K2-3.060 1NP-2.987 5NK+10.100 5PK。肥料实际用量为N 250.23 kg/hm~2,P_2O_5138.15 kg/hm2、K_2O 165.73 kg/hm2,3要素比例为1∶0.55∶0.66时,获得最佳产量87.38 t/hm2;氮肥肥料贡献率为35.65%,磷肥肥料贡献率为12.04%,钾肥肥料贡献率为10.50%,限制甜菜产量提高的养分限制因子从大到小依次为氮、磷、钾。[结论]伊犁地区甜菜生产中氮、磷、钾适宜的施用比例为1∶0.55∶0.66。
[Objective] The aim was to find suitable amount and proportion of fertile sugar beet for Yili region. [Method] From the perspective of efficient utilization of sugar beet fertilizer in Ili region, three factors and four levels of nitrogen, phosphorus and potassium were set up. According to the obtained yield, the effects of nitrogen, phosphorus and potassium fertilizers were simulated and the appropriate amount and proportion of fertilizers were studied. [Result] The three-way quadratic effect equation of yield of beet and nitrogen, phosphorus and potassium application was y = 3 319.323 7 + 297.974 9N-8.429 7P-8.860 2K-6.940 5N_2-2.628 9P2-1.159 8K2-3.060 1NP-2.987 5NK +10.100 5PK. The optimum amount of fertilizer was 87.38 t / hm2 when N fertilizer application rate was 250.23 kg / hm2, P_2O5138.15 kg / hm2, K_2O 165.73 kg / hm2, and 1: 0.55: 0.66. 35.65%, the contribution rate of phosphate fertilizers was 12.04%, and the contribution rate of potash fertilizer was 10.50%. The limiting nutrient factors that increased the yield of beet were as follows: nitrogen, phosphorus and potassium. [Conclusion] The suitable proportion of nitrogen, phosphorus and potassium in beet production in Ili area was 1: 0.55: 0.66.