马铃薯磷肥利用率与土壤速效磷含量呈负相关。
The utilization ratio of phosphate fertilizer in potatoes was negatively correlated to available phosphorus in soil.
速效磷含量与红富士各品质指标的相关性不强。
Correlation of soil available P and quality indicators of Fuji is not high.
结果表明，施用有机肥能显著增加旱地红壤的速效磷含量。
Effect of different rate of organic manure on phosphorus species is studied in arid red soil.
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