氮磷钾肥平衡施用对果蔗产质量的影响

Effect of Different Proportion Nitrogen,Phosphorus and Potassium Fertilizers on Chewing Cane Yield and Quality

通过果蔗氮、磷、钾肥平衡施用试验研究表明:合理配施氮、磷、钾肥能显著提高果蔗产量,改善品质,增加经济效益。在该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,这样既可获得高产,又能提高蔗汁糖分,防止纤维粗硬,影响品质。

The experimental results showed that reasonable proportion nitrogen, phosphorus and potassium fertilizers significantly increased yield of chewing cane, improved quality and increased economic benefit. Under the soil of phosphorus content of middle level and low potassium content, the optimum proportion of nitrogen, phosphorus and potassium fertilizers was as 1：0.5：0.5 or 1：0.7：0.5. This ratio not only increased yield and sugar content but also avoided fibre coarse and hard.