| 冯云艳 1，2，冷锁虎 1
，冯倩南 1
，张含笑 1
，刘 浩 1
，盖小斌 1，3，杨 光 1
，左青松 1.油菜毯苗移栽与直播对比研究[J].广东农业科学,2019,46(2):9-15 |
|
查看全文
HTML
油菜毯苗移栽与直播对比研究 |
| A Comparative Study on Transplanting and Direct Seeding of Rapeseed Blanket Seedling |
| |
| DOI：10.16768/j.issn.1004-874X.2019.02.002 |
| 中文关键词: 油菜 毯状苗 移栽期 产量 直播 |
| 英文关键词: rapeseed blanket-type seedling transplanting date yield direct-seeding |
| 基金项目:国家重点研究计划项目（2018YFD0200905） |
|
| 摘要点击次数: 2550 |
| 全文下载次数: 768 |
| 中文摘要: |
| 【目的】探讨毯苗移栽油菜适宜的移栽期及其达到高产栽培标准的最迟移栽时间，指导毯苗移栽
油菜大规模生产。【方法】以甘蓝型油菜品种宁杂 1818 为试材，设置毯苗移栽和直播两种种植方式，每种方式
6 个时期，即不同的移栽期和直播播期：10 月 15 日、20 日、25 日、30 日、11 月 4 日、9 日，研究其产量水平
和经济效益。【结果】毯苗移栽油菜籽粒产量随移栽时期的推迟呈先上升后下降的趋势，其中 10 月 25 日移栽
的籽粒产量最高、达 3 810.1 kg/hm2；通径分析结果表明，毯苗移栽油菜主要是通过角果数影响产量，直播油菜
则主要通过每角粒数影响产量；回归分析结果表明，油菜籽粒产量与移栽期之间呈二次曲线关系，10 月 28 产量
最高。【结论】以最高产量下降 5% 以内为标准得出适宜移栽期范围为 10 月 18 日—11 月 7 日，生产上以 3 000
kg/hm2 为高产的最低标准得出高产栽培的最迟移栽时间为 11 月 16 日。 |
| 英文摘要: |
| 【Objective】The study was to explore the suitable transplanting date of transplanting rapeseed from
blanket seedlings and the latest transplanting date for high-yield cultivation standard, and to guide the large-scale
production of transplanting rapeseed from blanket seedlings. 【Method】The variety of Ningza 1818 ( Brassica napus L. )
was chosen as the experiment material. In this experiment, two planting patterns- transplanting and direct-seeding were set
and each pattern was set with six dates, i.e. October 15, October 20, October 25, October 30, November 4 and November 9,
to study their yield level and economic benefits.【Result】Results showed that the seed yield of the transplanted rapeseed
from the blanket seedlings increased first and then decreased with the delay of transplanting date, and the seeds transplanted
on October 25 gained a highest yield, reaching 3810.1 kg/hm2. The results of path analysis showed that the yield of rapeseed transplanted from blanket seedlings was mainly affected by the number of pods while the yield of direct-seeding rapeseed was
mainly affected by the seeds number per pod. Regression analysis result showed that there was a quadratic curve relationship
between the yield and the transplanting date. According to the regression equation, it could be figured out that the highest yield
appeared on October 28.【Conclusion】Taking the highest yield decreased by 5% or less as the standard, it could be obtained
that the suitable transplanting period was from October 18 to November 7, and 3 000 kg/hm2 was set as the minimum standard of
high yield in production it could be obtained that the latest transplanting date for high-yield cultivation was November 16. |
|
查看/发表评论 下载PDF阅读器 |
