安徽农业科学2017，Vol.45Issue(30)：78-79,93,3.
油菜秸秆还田对土壤养分及水稻生长的影响
Effects of Rape Straw Returning to Soil on Soil Nutrient and Rice Growth
摘要
Abstract
[Objective] To investigate the soil nutrient changes in rice paddy rotation system under straw cropping system in Jianghuai Area. [Method]The main rape varieties of Wanyou 14 in Hefei area were selected for returning to the fields, selected the rice varieties of Fengliangyou No.1, micro area simulation test and field positioning test was designed, the long-term soil nutrient and yield factors of rice were determined un-der the condition of rape straw returning to field.[ Result] In the micro simulation experiment, the effects of straw returning on soil nutrients were greater, the content of organic matter in soil increased, and the content of available phosphorus and available potassium first increased and then decreased.Straw returning increased rice yield, and the yield increased by 55.54%~159.26% compared with blank control.In field experi-ment, the soil organic matter does not change significantly, phosphorus and potassium content decreased obviously, change rate was 3.27%~9.24%, -12.44%~-42.00% and -38.70% ~-49.21% respectively.Rape straw returning has no adverse effect on the tillering and growth of rice seedlings after transplanting, and also improves the seed setting rate and yield of rice.[Conclusion]This study can provide a scien-tific basis for further studying the material circulation in rice oil rotation system.关键词
油菜秸秆/土壤/水稻生长/物质循环Key words
Rape straw/Soil/Rice growth/Material cycling分类
农业科技引用本文复制引用
何成芳,朱鸿杰,戚传勇,方志鹏,刘春松,闫晓明..油菜秸秆还田对土壤养分及水稻生长的影响[J].安徽农业科学,2017,45(30):78-79,93,3.基金项目
国家科技支撑计划项目(2007BAD89B10). （2007BAD89B10）
