01159nam a2200205Ia 4500 CTU_138734 210402s9999 xx 000 0 und d 631.84 P123 Paddy nitrogen economy : Comparative ecological study on nitrogen economy of paddy soil between tropical and temperate regions Edited by Sorasith Vacharotayan, Yasuo Takai Tokyo Nodai Research Institute 1983 The present comparative study was attempted with a view to establishing and promoting an exchange of information on nitrogen economy of paddy soil between tropical and temperate regions. It also provided an orpportunity for scientists in Thailand and Japan to cooperatively undertake field and laboratory studies in order to develop information on each process of nitrogen cycle, total nitrogen balance and effect on fertilizer use. Fertilizers,Rice, effect of nitrogen on,Soil science,Cây lúa,Phân bón,Đất cây trồng Application Bạch Trúc Trung tâm Học liệu Trường Đại học Cần Thơ