【摘要】 采集黑龙江省哈尔滨市黑土长期施肥试验基地的黑土以及吉林省中西部的公主岭市和中北部的榆树市不同酸度的黑土,测定黑土的硝化强度.结果表明,哈尔滨同一地域不同施肥制度,导致黑土的酸度不同,在一定pH值范围内,硝化强度随着土壤pH值的增加而增大.公主岭和榆树市不同地域不同酸度的黑土,土壤偏碱或偏酸性时,土壤的硝化强度较大,中性土壤硝化强度较小.更多还原

【Abstract】 Different acidity soil samples were collected from a long-term experiment fields in Harbin city,Heilongjiang province,Gongzhuling city in the midwest of Jilin province and Yushu city in the midnorth of Jilin province,and the nitrification potential of the black soils is measured. The results show that the same region and different fertilizer treatments have different effects on soil acidity. In a certain range of pH,the soil nitrification potential is increasing with the increase of the soil p H. When the soil is slightly alkaline or acidic,nitrification potential in the soil is larger. When the soil was neutral,the soil nitrification potential was the minimal.更多还原