解磷细菌和丛枝菌根真菌对紫花苜蓿生产性能及地下生物量的影响

孙艳梅,张前兵,苗晓茸,刘俊英,于磊,马春晖

Effects of Phosphorus-Solubilizing Bacteria and Arbuscular Mycorrhizal Fungi on Production Performance and Root Biomass of Alfalfa

YanMei SUN,QianBing ZHANG,XiaoRong MIAO,JunYing LIU,Lei YU,ChunHui MA

表1 不同菌处理下紫花苜蓿地下生物量及土壤磷含量

Table 1 The under-ground biomass and soil phosphorus concentration of alfalfa under different bacterial treatments

处理 Treatment 主根长 Taproot length (cm) 地下生物量 Under-ground biomass (g/pot) pH 土壤全磷 Total phosphorus in soil (g·kg-1) 土壤速效磷 Available phosphorus in soil (mg·kg-1) CK 28.87±0.36g 6.07±0.05k 7.63±0.13a 1.142±0.063a 20.95±0.14h Bm 33.43±0.25f 10.86±0.13h 7.33±0.02cde 0.904±0.016fgh 28.63±0.37d Bs 32.21±0.22f 9.27±0.06f 7.44±0.07bc 0.964±0.017def 25.25±0.26f Fm 34.94±0.34e 14.93±0.14g 7.40±0.04bcd 1.073±0.047bc 27.56±0.31e Ge 33.92±0.21e 13.87±0.15i 7.49±0.05b 1.021±0.020cd 25.55±0.24f BmBs 31.94±0.42f 12.14±0.09i 7.41±0.11bc 1.094±0.019ab 23.37±0.22ab BmFm 39.07±0.47b 19.07±0.19b 7.15±0.12f 0.836±0.018h 31.19±0.38a BmGe 38.72±0.28b 17.33±0.11d 7.24±0.06ef 0.872±0.025gh 30.74±0.35ab BsFm 36.14±0.12c 17.67±0.05c 7.34±0.05cde 0.926±0.022efg 30.42±0.29bc BsGe 35.45±0.23d 16.04±0.13e 7.21±0.07ef 0.943±0.054ef 30.04±0.48c FmGe 39.83±0.27a 20.94±0.18a 7.26±0.03def 0.977±0.060de 28.71±0.31d