%0 Journal Article
%T Dynamics of microbial biomass N in different fertilized black soil and its related factors<br>不同施肥黑土微生物量氮变化特征及相关因素
%A LI Dongpo
%A CHEN Lijun
%A WU Zhijie
%A ZHU Ping
%A REN Jun
%A LIANG Chenghua
%A PENG Chang
%A GAO Hongjun
%A <br>李东坡
%A 陈利军
%A 武志杰
%J 应用生态学报
%D 2004
%I 
%X This paper studied the dynamics of microbial biomass N in a black soil long-term fertilized with farmyard manure (M2 and M4) and chemical fertilizer (NPK) during crop growth season. The results showed that the soil microbial biomass N was 25.52-239.12 mg x kg(-1) in M4, 10.40-94.31 mg x kg(-1) in M2, 6.27-87.04 mg x kg(-1) in NPK, and 9.15-69.81 mg x kg(-1) in CK. In same treatment, the highest value was 7-14 times higher than the lowest value. Treatments NPK and M2 had the highest value of microbial biomass N at reproductive growth stage, while M4 and CK had it at vegetative growth stage. The significant difference of soil microbial biomass N caused by different treatments was not changed with plant growth stages. The dynamics of soil microbial biomass N had a significant correlation some soil biological, physical and chemical properties. A significant positive correlation was found between soil microbial biomass N and soil biological, physical and chemical properties, plant N, P and K contents, soil moisture, and grain crude protein.
%K Black soil
%K Long-term fertilization
%K Microbial biomass N
%K Dynamic characters
%K Related factors<br>黑土
%K 长期施肥
%K 微生物量氮
%K 变化特征
%K 相关因素
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=8A14B9EADDF272EA&yid=D0E58B75BFD8E51C&vid=23CCDDCD68FFCC2F&iid=F3090AE9B60B7ED1&sid=E7AA5D9F9796332E&eid=8E33296F097354F4&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=20&reference_num=33