超高产油菜栽培模式的研究.docVIP

超高产油菜栽培模式的研究 摘 要 本课题主要研究栽培密度对油菜农艺性状的影响规律，以期获得油菜品种“RS-1”高产的栽培。以度因素，通过密度为产量可达 kg/亩。ABSTRACT To study the impact regulation on agronomic characters of Rape under the different cultivation density, and to find out the appropriate density for high yield of rapeseed “SRS-1”, we designed the cultivation density as the research factor.Through the investigation and statistical analysis of the agronomic characters and the yield,we found the regulation that the density impacted on the branch characters and the yield. The regulation between the planting density and the branch characters is that it is more advantageous to form the yield characters under the sparse cultivation density than under the close cultivation density. When the planting density is 667 plants / mu, the first effective number of branches, the whole plant total number of branches and The whole plant total number of pods have reached the maximum. But when the density is greater than 1,333 plants/ mu, these characters show a sharp downward trend. The impact of density on production is that it is more propitious to get the high yield under the close planting than under the sparse planting because of groups predominance. But the yield is greater than average level when the density is 667 plants /mu or 2,333 plants/ mu.In this experiment, when the designed density is 5,000 plants/mu, it can increase significantly and reach 204.544 kg /mu in the production. Key words: Rape，Cultivation density，Branch Features，yield 目 录 摘 要……………………………………………………………………………………………..Ⅰ ABSTRACT………………………………………………………………………………………...Ⅱ 1 绪论…………………………………………………………………………………………….1 1.1研究意义……………………………………………………………………………………1 1.2前人研究进展………………………………………………………………………………1 1.2.1世界油菜生产研究现状………………………………………………………………1 1.2.2我国油菜生产研究现状………………………………………………………………1 1.3油菜良种良法研究前景……………………………………………………………………3 1.3.1新品种选育方面………………………………………………………………………3 1.3.2栽培科学技术方面……………………………………………………………………3 1.4本试验的切入点……………………………………………………………………………3 1.5拟解决的问题………………………