%0 Journal Article
%T Effects of different nutrient and water regimes on the morphology and activity of rice root system<br>不同养分与水分管理对水稻植株根系形态及其活力的影响
%A YANG Chang-Ming
%A YANG Lin-Zhang
%A OUYANG Zhu
%A <br>杨长明
%A 杨林章
%A 欧阳竹
%J 中国生态农业学报
%D 2004
%I 
%X The effects of different nutrient and water treatments on the root morphology and activity of rice plant in pot experiment were studied. The results indicate that in alternate wetting and drying model (AWD) and controlled irrigation model (DRA), the root active absorption areas of rice plant by the combined applications of chemical fertilizers with organic manure are 19.3% and 28.2% respectively larger, and the root activities (RA) are 23.7% and 37.9% respectively higher, as compared with the exclusively chemical fertilizers. While in the water regimes of continuous waterlogging (CWL), the effectiveness of chemical fertilizers with organic manure on improvement of the rice root morphology and activity is greatly weakened. The combined applications of chemical fertilizers with organic manure increase the root surface acid phosphatase activity (APA) significantly, especially in the controlled irrigation, the APA of chemical fertilizers with organic manure shows 44.7% higher than that of the chemical fertilizers.
%K Rice
%K Root morphology
%K Root activity
%K Nutrient and water regimes<br>水稻
%K 根系形态
%K 根系活力
%K 养分与水分管理
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=C33E8212B61236C4&yid=D0E58B75BFD8E51C&vid=59906B3B2830C2C5&iid=E158A972A605785F&sid=0D0D661F0B316AD5&eid=CD775AE9DDBD7B53&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=9&reference_num=9