长期施用磷肥水稻土微生物量磷的季节变化特征与差异

刘凯,刘佳,陈晓芬,李委涛,江春玉,吴萌,樊剑波,李忠佩,刘明

Seasonal Variation and Differences of Microbial Biomass Phosphorus in Paddy Soils Under Long-Term Application of Phosphorus Fertilizer

Kai LIU,Jia LIU,XiaoFen CHEN,WeiTao LI,ChunYu JIANG,Meng WU,JianBo FAN,ZhongPei LI,Ming LIU

表2 不同施肥处理下土壤微生物量磷的周转

Table 2 Turnover of soil microbial biomass phosphorus under different fertilization treatments

施肥处理 Treatment 有效磷库 AP pool (kg·hm-2) 微生物量磷库 MBP pool (kg·hm-2) 周转率 MBP turnover rate 周转量 MBP turnover (kg·hm-2) CK 5.33b 19.50d 0.59 11.63 NK 5.97b 24.54c 1.31 32.25 NP 35.07a 40.80b 1.07 43.94 NPK 31.14a 55.05a 1.28 70.57