赤红壤蔗区11年连续增量施磷下磷素演变及其 对甘蔗产量与磷流失的影响

区惠平,周柳强,黄金生,谢如林,朱晓晖,彭嘉宇,曾艳,莫宗标,谭宏伟,叶盛勤

Change of Phosphorus in Lateritic Red Soil and Its Effect on Sugarcane Yield and Phosphorus Loss in Runoff Under 11-Year Continuous Application of Excessive Phosphorus Fertilizer

OU HuiPing,ZHOU LiuQiang,HUANG JinSheng,XIE RuLin,ZHU XiaoHui,PENG JiaYu,ZENG Yan,MO ZongBiao,TAN HongWei,YE ShengQin

表1 土壤地表径流磷流失量与土壤Olsen-P的关系

Table 1 Relation between P loss and Olsen-P

年份Year 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 r 0.910 0.895 0.965* 0.956* 0.999** 0.966* 0.969* 0.999** 0.998** 0.957* 0.962*