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机构地区:[1]黑龙江省农科院土肥所,黑龙江哈尔滨150086 [2]沈阳农业大学土地与环境学院,辽宁沈阳110161
出 处:《土壤通报》2003年第3期209-211,共3页Chinese Journal of Soil Science
基 金:黑龙江省自然科学基金项目资助
摘 要:本研究采集黑龙江省29个市、县,发育于5种母质的8种土壤类型143个耕层土样,分析测试其全硫、有效硫含量;结果表明黑龙江省土壤全硫含量平均值为511.90mg/kg,有效硫含量平均值为26.27mg/kg。缺硫和潜在缺硫(有效硫含量<16mg/kg)土壤以风砂土和盐碱土居多,其次是黑土、黑钙土,而草甸土硫素含量丰富。缺硫面积最大的是黑土。按母质划分,发育于砂质沉积物的土壤100%缺硫,其次是发育于河湖冲积物和沉积物土壤,缺硫达65%以上。This paper shows that the average content of total sulfur in the main cultivited soils was 511.9 mg·kg-1 and the range was 102-1334 mg·kg-1.The highest was in meadow soil and the lowest was in wind-sand soil.The average content of available sulfur was 26.3 mg·kg-1.The highest one was in lessive soil and the lowest one was in wind-sand soil.Wind-sand soil and soline-alkali soil were the two main sulfur deficiency soils.According to the soil forming material,soils developed from sand material were 100% S deficiency,while soils developed from river allurium and lacustrine were 60% S deficiency.The crop yield was increased more than 7.0% when applying sulfur fertilizer.
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