等有机质 土有效磷和无机磷形态的关系
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李若楠,王政培,BATBAYARJavkhlan,张东杰,张树兰,杨学云
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Relationship Between Soil Available Phosphorus and Inorganic Phosphorus Forms Under Equivalent Organic Matter Condition in a Tier Soil
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RuoNan LI,ZhengPei WANG,Javkhlan BATBAYAR,DongJie ZHANG,ShuLan ZHANG,XueYun YANG
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表2 土不同有效磷水平下土壤无机磷相对含量(%)
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Table 2 The proportion of different forms of inorganic phosphorus to total inorganic phosphorus in soils with a gradient of Olsen P level of a tier soil
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土壤样品 Soil sample | 各形态无机磷占总无机磷的百分比 Proportion of inorganic phosphorus fraction to total (%) | Ca2-P | Ca8-P | Ca10-P | Ca-P | Al-P | Fe-P | O-P | S 1 | 1.63c | 14.84bc | 53.65a | 70.12a | 12.50c | 5.63ab | 11.76a | S 2 | 2.02bc | 13.92c | 54.24a | 70.19a | 12.32c | 5.84a | 11.65a | S 3 | 2.23b | 16.26b | 50.17ab | 68.66a | 13.46c | 4.93ab | 12.95a | S 4 | 2.31b | 19.05a | 45.83bc | 67.18a | 16.84b | 4.44b | 11.54a | S 5 | 3.64a | 16.61b | 47.30b | 67.54a | 14.83bc | 5.36ab | 12.27a | S 6 | 3.69a | 16.48b | 42.39c | 62.57b | 21.02a | 4.84ab | 11.56a | S 7 | 4.08a | 20.43a | 35.95d | 60.46b | 22.97a | 5.60ab | 10.97a | Mean | 2.80 | 16.80 | 47.08 | 66.67 | 16.28 | 5.23 | 11.81 |
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