松嫩平原主要土壤供硫水平及十字花科作物对硫敏感性的研究

The Study of the Sulphur Content of the Main Soils in Songnen River Plain and Sensitive of Sulphur to Crucifer

松嫩平原土壤供硫水平多属于中等和低等水平,在供试的土壤中全硫含量最高为492.2mg/kg,最少为350.8 mg/kg;有效硫最高为12.8 mg/kg,最少为10.6 mg/kg。SAI值多小于14,大多数土壤需要施硫。十字花科作物是硫的敏感作物,施用硫肥可以提高十字花科作物的产量。

Sulphur content in Song -Nen river plain is middle and low. In the soil tested, the highest total sulphur content is 492. 2 mg/kg, and the lowest one is 350. 8 mg/kg;The highest content of effective sulphur is 12. 8 mg/kg, the lowest one is 10. 6 mg/kg. Most of the SA1 value is less than 14, and most of the soil needs to add sulphur fertilizer . Crucifer crops are sensitive to sulphur, the output of crucifer crops can be enhanced by applying sulphur fertilizer.