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

RuoNan LI,ZhengPei WANG,Javkhlan BATBAYAR,DongJie ZHANG,ShuLan ZHANG,XueYun YANG

表1 陕西关中平原供试土基本化学性质

Table 1 Soil chemical properties of investigated tier soil collected in Guanzhong Plain of Shaanxi Province

土壤样品 Soil sample 有效磷含量 Olsen P (mg·kg-1) 有机碳含量 SOC (g·kg-1) 酸度(1﹕2.5) pH 全磷含量 Total P (g·kg-1) S1 10.73 10.68 7.41 0.95 S2 18.06 10.34 7.29 0.96 S3 20.61 10.21 7.10 0.86 S4 24.01 10.54 7.86 1.08 S5 30.73 10.06 8.04 1.01 S6 43.69 10.49 7.54 1.24 S7 58.58 10.03 7.87 1.47