陕西关中冬小麦/夏玉米区土壤磷素特征
刘琳,吉冰洁,李若楠,BATBAYARJavkhlan,张树兰,杨学云(
)
)
Characteristics of Soil Phosphorus in Winter Wheat/Summer Maize Cropping in Shaanxi Guanzhong Plain
LIU Lin,JI BingJie,LI RuoNan,BATBAYAR Javkhlan,ZHANG ShuLan,YANG XueYun()
)
图4. 土壤有机磷、无机磷、有效磷及土壤磷活化系数（PAC）与土壤有机质的关系
Fig. 4. The correlation between total-organic P, total-inorganic P, Olsen P and PAC with soil organic matter
