基于甘蔗产量与土壤磷素平衡的磷肥施用量研究

区惠平,周柳强,黄金生,朱晓晖,曾艳,彭嘉宇,谢如林,谭宏伟,李忠宁,沈小微,刘昔辉

Research on Phosphorus Application Rate Based on Sugarcane Yield and Phosphorus Balance in Soil

OU HuiPing,ZHOU LiuQiang,HUANG JinSheng,ZHU XiaoHui,ZENG Yan,PENG JiaYu,XIE RuLin,TAN HongWei,LI ZhongNing,SHEN XiaoWei,LIU XiHui

图5 磷素盈余率与施磷量、产量、土壤有效磷含量和磷肥利用效率的关系

Fig. 5 The correlation of P surplus rate with phosphorus application rate, cane yield, soil Olsen-P and phosphorus utilization efficiency