移栽时期与栽培方式对油菜干物质积累的影响

摘要

with Xiangzaiyou 6 as test matrial,In the natural fertility of paddy uniform mound on the block in the town of Li-uyang Beisheng Own Community in 2013.9-2014.5,To investigate Effect of different transplanting period and cultivation patterns on dry matter accumulation,the results show that the earliest and latest transplanting were negative on dry matter accumulation.with the transplanting time postponing the number of days in each growth stage mostly shortened along with transplanting time postponing.The accumulated soil temperature fall within each growth stage.ridge cultivation more condu-cive to the accumulation of accumulated temperature than the culture,And ridge cultivation reduce adverse impacts on the accumulation of dry matter of transplanting period.%以湘杂油6号为材料，于2013年9月至2014年5月在浏阳市北盛镇乌龙社区肥力均匀的稻田自然丘块上，以平作与垄作二种方式研究不同移栽期与栽培方式下地积温对油菜干物质积累与分配的影响。结果表明：地积温在移栽至现蕾期、终花至成熟期对干物质积累起决定性作用，过早移栽与过晚移栽对干物质积累都不利；随着移栽期的推迟，各生育时期内的地积温下降，油菜的各阶段发育也相应推迟，阶段发育的天数大多随移栽期的推迟而缩短；垄作比平作更有利于地积温的积累；垄栽比平栽能减少移栽时期对干物质积累的不利影响。