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等有机质 土有效磷和无机磷形态的关系
李若楠,王政培,BATBAYARJavkhlan,张东杰,张树兰,杨学云()
Relationship Between Soil Available Phosphorus and Inorganic Phosphorus Forms Under Equivalent Organic Matter Condition in a Tier Soil
LI RuoNan,WANG ZhengPei,BATBAYAR Javkhlan,ZHANG DongJie,ZHANG ShuLan,YANG XueYun()

图1. 陕西省关中平原冬小麦-夏玉米种植区土壤样品采集点分布图

Fig. 1. The distribution of soil sampling sites in Guanzhong Plain of Shaanxi Province under winter wheat-summer maize cropping