| Aiming at problem on how to arrange planting time of rice and rape in mountain area, superrice+ratoon rice+rape mode and high-yield technology with area characteristic were studied in the project. In the end, based on scientific analysis on result of some kinds of test, new rice and rape varieties adaptable for high-yield mode were screened out, area where new mode was fit to use was determined, high-yield technology was obtained, and improved varieties and method were matched finally. In the proccession of production, some local standard for cultivation technology in Guangxi were used into practice too. The main study results are followed:1. Application of " superrice+ratoon rice+rape" prodution modeAccording to natrual condition of three counties (Rongshui, Sanjiang and Rongan) locating in northern Liuzhou city, some advanced technology and method were adopted in the project aiming at existing problems on planting season of rice so that yield of super rice was raised to a maixmum extent, ratoon realized high output, continunous cropping was realized due to use early maturity rape. After adoping "superrice+ratoon rice+rape" continunous cropping mode, output of both rice and rape was raised and recircle produc-tion was realized, output of each crop has an abundant harvest.2. Planning area where "superrice+ratoon rice+rape" production mode was usedBy investigating effective time when first-season rice and ratoon rice were fit to be planed at areas with different altitude and latitude in Rongshui and Sanjiang county and planting pattern of rape, ecological type of rice fit to be planted in different township of Liuzhou city and the best area where "superrice+ratoon rice+rape" production mode was adopted were determined in combination with analyzing average temperatrue of each10day during a certain period. Moreover, helped and direct farmers to use the continous cropping mode and plant crops in accordant with standard for "superrice+ratoon rice+rape" continous cropping production mode. |
PDF Full Text Request