The effective zinc content in different texture soils. The difference is small, the content of sandy soil is slightly higher, the average is 2.27mg/kg, the variation range is 0.19~9.2mg/kg, the variation range is smaller, the content is more balanced; the content of loamy soil is slightly lower, the average is 2.19mg/kg, The variation range is 0.2~13.52mg/kg, the variation range is large, and the content is uneven. The lowest value is sandy soil and the highest value is loamy soil. The content of available zinc in loamy soils is not much different. The contents of medium loam and light loam are relatively high, respectively 2.36mg/kg and 2.35mg/kg, and the variation ranges are 0.6~6.09mg/kg and 0.2~10.2mg/kg respectively; The content of sandy soil is low, with an average of 2.0 mg/kg, and the amplitude is 0.28 to 13.52 mg/kg, which is a large amplitude. The order of available zinc content in each loamy soil from high to low is: middle loam>sand loam
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