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本文采用 N、P、K三种肥料不同的施肥模式和种植行距的 4因子 5水平 2次正交旋转组合设计全部实施的研究方法 ,得出了甘蔗含糖量高于 14 % ,甘蔗产量高于 75t/ hm2 和产糖量高于10 .5t/ hm2 的最佳施肥模式和种植行距。试验结果的验证和大面积的生产性推广证实 :适合于试验地所处的生态环境植蔗区的最佳种植行距为 0 .80 - 0 .85m,氮肥 (尿素 )最适宜用量为 0 .6 t/ hm2 ;磷肥 (过磷酸钙 )施用过多会影响甘蔗含糖量 ,一般以 1.32 t/ hm2 为最适 ;钾肥 (氯化钾 )最适用量为 0 .9t/ hm2 。
In this paper, N, P, K three kinds of fertilizers different fertilization modes and planting spacing 4 factors 5 level 2 orthogonal rotation combination design of all the research methods, obtained sugarcane sugar content above 14%, high yield of sugarcane The best fertilization pattern and planting spacing at 75t / hm2 and sugar content above 10.5t / hm2. Validation of the test results and large-scale production promotion confirmed that the optimum planting spacing for the sugarcane planting area suitable for the experimental area was 0.80-0.85m, and the optimum dosage of nitrogenous fertilizer (urea) was 0.6 t / hm2; too much phosphate fertilizer (superphosphate) can affect the sugar content of sugarcane, which is the most suitable for 1.32 t / hm2; the optimum dosage of potassium fertilizer (potassium chloride) is 0.9 t / hm2.