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１ 试验材料与方法试验设在七星农场二队水稻科技园区，土质为白浆土，ｐＨ值６２，地势平坦，地力中等均匀，前茬水稻，秋翻地。供试水稻为绥９２１８８，４月１８日育苗，５月２３日机插。基肥施磷酸二铵９０ｋｇ／ｈｍ２、尿素６０ｋｇ／ｈｍ２、硫酸钾６０ｋｇ／ｈｍ２?
1 Test Materials and Methods The experiment was conducted in the Rice Science and Technology Park of Qixing Farm No.2 Team. The soil quality was white earth with a pH value of 6.2, flat topography and medium ground force. Test rice for Sui 92188, April 18 nursery, May 23 machine inserted. Base fertilizer applied DAP 90kg / hm2, urea 60kg / hm2, potassium sulfate 60kg / hm2?