摘要
黑龙江省的暗棕壤、白浆土、黑土、黑钙土、草甸土和沼泽土表层有机质,全氮和碱解氮均存在极显著的相关关系,而在泥炭土和水稻土上其相关性稍差,接近岩性发育较弱的盐土、碱土、冲积土和风沙土的有机质,全氮和碱解氮之间无相关性。分析结果表明,在主要旱作土壤上,有机质可以代表土壤的供氮水平。用扩散吸收法测定碱解氮在黑龙江省是适用的。
In Heilongjiang province, the correlation between organicmatter, total nitrogen and ayailable nitrogen are highly significant indark brown soil, Albic soils, Black soils, Chernozems, Meadow soilsand Bog soils, slightly significant in peat soils and peddy soils, andsignificant in solouchak, solonetz, aluyial soils and aeolian sandy soils.Results indicat that the soil organic matter may delegate the supplylevel of nitrogen. Hydrolyzed the soil sample with 1.2N NaoH andabsorbed by boron acid for analysis of the Available nitrogen is a suitablemethod in Heilongjiang province.
出处
《黑龙江八一农垦大学学报》
1995年第2期57-60,共4页
journal of heilongjiang bayi agricultural university
关键词
土壤有机质
全氮
碱解氮
相关分析
黑龙江
Soil organic matter, Total nitrogen, Available nitrogen,Correlation analysis.