氮、磷、钾肥不同配比对果蔗产量和品质影响的研究

对果蔗氮、磷、钾营养元素平衡关系的试验研究结果表明:氮、磷、钾肥合理配施能显著提高果蔗产量,改善品质,而且还能增加经济效益;与糖蔗相比,果蔗要适当增施磷肥,少施钾肥,能提高蔗汁甜味,避免蔗皮硬,提高果蔗品质.在本地区土壤磷素含量中等水平,钾素水平不高的情况下,氮、磷、钾肥配施比例以1∶0.5∶0.5或1∶0.7∶0.5为宜.

Different Application Rate of Nitrogen, Phosphorus, Potassium in the Effect of Chewing Cane Yield and Quality

Balanced application test of nitrogen,phosphorus,potassium in chewing cane field was conducted. Th Results showed that adequate fertilization rate of nitrogen,phosphorus,potassium could significantly increase sugarcane production,improve cane quality and increase economic benefit. Increased P and reduced K application rate could improve chewing cane quality in juice sweetness and shell hardness. Application rate of 1:0.5:0.5 or 1:0.7:0.5 was considered suitable for chewing cane field with medium soil phosphorus content and poor potassium content.