%0 Journal Article
%T Effects of long-term fertilization on phospholipid fatty acids and enzyme activities in paddy red soil<br>长期施肥对红壤水稻土磷脂脂肪酸特性和酶活性的影响
%A YAN Hui
%A ZHONG Wen-hui
%A LI Zhong-pei
%A CAI Zu-cong
%A <br>颜慧
%A 钟文辉
%A 李忠佩
%A 蔡祖聪
%J 应用生态学报
%D 2008
%I 
%X Soil samples were collected from the paddy fields at the Ecological Experimental Station of Red Soil, Chinese Academy of Sciences under different treatments of long-term fertilization, and their phospholipid fatty acids (PLFAs) and enzyme activities were determined. The results showed that soil enzyme activities, nutrient contents, microbial biomass, and PLFAs varied greatly with different fertilizations. Fertilization increased the kinds and amount of soil PLFAs. Compared with fertilized soil, unfertilized soil had more fungal PLFAs but less bacterial PLFAs, indicating that fungus was more adaptable to infertile soils than bacteria. Soils applied with NPK and organic fertilizer had higher amount of total PLFAs, which was 3.22 and 1.79 times higher than that under N fertilization and no fertilization. It was indicated that balanced fertilization with NPK or applying organic fertilizer was more beneficial to the growth of plants. Fertilization could also increase soil enzyme activities, and soil urease and phosphatase activities could be used as the indicators of soil fertility.
%K 红壤
%K 水稻土
%K 施肥
%K 磷脂脂肪酸
%K 脲酶
%K 磷酸酶
%K 平衡施肥
%K 红壤水稻土
%K 磷脂脂肪酸
%K 特性
%K 磷酸酶活性
%K 影响
%K paddy
%K red
%K soil
%K activities
%K enzyme
%K fatty
%K acids
%K phospholipid
%K fertilization
%K 指标
%K 土壤肥力水平
%K 土壤脲酶
%K 作物生长
%K 无机氮肥
%K 施肥处理
%K 有机肥
%K 条件
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=42FEDDFE54F8BCD9D5FD1926ABDD7722&aid=2E06B2513336080F2FF2C8F7DBBE14EF&yid=67289AFF6305E306&vid=2A8D03AD8076A2E3&iid=CA4FD0336C81A37A&sid=4F2F18DD6F870C2C&eid=80A07035DF96B0C4&journal_id=1001-9332&journal_name=应用生态学报&referenced_num=0&reference_num=27