长期施用磷肥和有机肥黄壤微生物量磷特征

刘彦伶,李渝,张艳,张雅蓉,黄兴成,张萌,张文安,蒋太明

Characteristics of Microbial Biomass Phosphorus in Yellow Soil Under Long-Term Application of Phosphorus and Organic Fertilizer

YanLing LIU,Yu LI,Yan ZHANG,YaRong ZHANG,XingCheng HUANG,Meng ZHANG,WenAn ZHANG,TaiMing JIANG

表1 2016年不同施肥处理土壤养分

Table 1 Soil nutrients of different fertilization treatments in 2016

处理 Treatment pH 有机质 Organic matter (g·kg-1) 全氮 Total N (g·kg-1) 有效磷 Available P (mg·kg-1) 速效钾 Available K (mg·kg-1) 不施肥CK 6.74 47.3 1.99 9.87 86.3 氮钾肥NK 5.86 35.8 1.73 9.37 221.7 氮磷钾化肥NPK 6.45 37.1 2.01 31.63 155.3 有机肥M 7.18 57.7 2.71 31.30 452.3 1/2有机肥+1/2氮磷化肥 0.5MNP 6.88 49.5 2.50 33.83 335.3 全量有机肥+全量氮磷钾化肥MNPK 7.01 52.9 2.10 51.00 443.5