超级稻+再生稻在不同栽培模式下的效益分析

[目的]探讨超级稻＋再生稻在不同栽培模式下的效益。[方法]以中浙优1号等4个超级稻为试材,于2009年在广西钦州市的传统中稻区、冬种辣椒区、冬种蔬菜及马铃薯区和双季稻区进行了超级稻＋再生稻栽培示范项目,示范面积为167.9 hm2。[结果]在传统中稻区和冬种辣椒区推广超级稻＋再生稻栽培模式可使水稻增产增收效果明显;在冬种蔬菜、马铃薯区虽然水稻有所减产,但可使一年三熟或多熟,在时间安排上显得宽松,确保农民在冬种作物上增产增收;在双季稻区虽然产量略低,但节省了1个月左右的时间,使农民有充裕的时间再种植一茬冬种作物。[结论]利用超级稻＋再生稻栽培模式可使水稻全生育期缩短1个月左右,产量与双季稻差别不大,并且具有省种、省工、节水等特点。

Benefit Analysis on Super Rice + Ratooning Rice in Different Cultivated Modes

[Objective] The study aimed to discuss the benefit analysis on super rice+ ratooning rice in different cultivated modes.[Method] With 4 super rices such as Zhongzheyou 1 as the materials,the cultivation demonstrating projects of super rice+ ratooning rice were conducted in the areas of traditional mid-rice,winter chili,winter vegetables and potato,double-crop rice in Qinzhou City of Guangxi in 2009,with the demonstrating area of 167.9 hm2.[Result] Popularizing the super rice + ratoon rice model could significantly increase the rice yield in the traditional mid-rice and winter chilli cultivation area.The model could reduce the some rice yield in the winter vegetables and potato area,but it could let farmers have a loose time in the arrangement of three crops or more crops a year so as to ensure their yield increase and income increase in the winter crops.The model could have slightly lower yield in the double-crop rice area,but it could save the time of about 1 month,which made the famers have full time to replant a winter crop.[Conclusion] Using the super rice + ratoon rice model could shorten the whole growth period of rice by about 1 month with the yield that was little difference with the double-crop rice and had characteristic of saving seeds,saving work and saving water,etc.