油菜“双龙”栽培防渍高产技术探讨

Introduction on Rapeseed Technique of "Double Dragon" with High Yield and Resistance to Water-logging

渍害是制约平原水网区春花产量的主要障碍因子。为解决渍害问题 ,近年来 ,桐乡市探索形成了油菜高畦阔沟“双龙”窄株栽培技术 ,并在桐乡市大面积推广 ,有效地防止了渍害 ,减轻菌核病 ,增产较为显著。一般烂冬年份比阔塄栽培增产 15 %以上 ,干旱年份增产 6%左右 ,正常年份增产 10 %～ 12 %。

Water-logging was one of the most important factors affecting the yield of spring-harvesting crops in the river network and plain areas. In order to alleviate this problem, the 'double dragon' cultivated technique of rapeseed, which was composed of high ridge with wide ditch and broad distance between rows and narrow distance between plants was developed and extended in Tonxing City in Zhejiang province. Compared with the wide ridge planting, the rapeseed yield was increased by 10-12% in normal years. More than 15% in the years with rainy winter season and around 6% in drought years because the water-logging for rapeseed was presented effectively and the sclerotinia disease of rapeseed was reduced by means of this technique.