摘要
为了培育适应种植制度特点又适应插秧机作业的秧苗,通过引进穴盘精播钵苗机插秧技术进行研究,采用钵苗穴盘、钵形毯状盘、塑料软平盘培育机插秧秧苗,比较了3种方式的播种量、20~50 d的苗高,插秧后调查了漏插率、直立苗率、伤秧率、返青期,结果表明：采用钵苗穴盘育秧,具有节省种子、播种精度、出苗率、成苗率高的优点。在20~40 d,叶龄、苗高、根数均较高,40 d以后,生长延缓。20 d是秧苗质量差异小,此后,钵苗穴盘秧苗质量优势逐渐突出。30 d时,插秧质量差异不大;但超过40 d时,插秧质量高于钵形毯状盘、塑料软平盘育秧,且返青期明显缩短。这更适宜于成都平原稻麦两熟种植制度区域。
In order to cultivate seedlings that are adaptable to farming system and transplanter,the technology for transplanting potted-tray grown rice seedlings with machine was introduced and studied. The transplanter-specific seedlings were cultivated with potted-tray,bowlshaped blanket tray and soft plastic flat plate respectively. The seeding rate and 20- 50-day-old seedling height were investigated for the 3sowing patterns. After the transplanting,the missing transplanting rate,upright seedling rate,seedling injury rate and green-returning period were investigated. Nursing seedlings with potted-tray had the advantages of saving seeds,high sowing precision,high seedling rate and high seedling rate. The 20- 40-day-old seedlings had relatively high leaf age,seedling height and root number. However,40 d after the transplanting,the growth of seedlings was slowed. The quality difference was smallest among the 20-day-old seedlings that were nursed with 3 different patterns,but since then the quality advantage of potted-tray grown seedlings had been more and more prominent. There was small difference in quality among the 30-day-old seedlings. However,for the seedlings that were older than 40 d,the transplanting quality of potted-tray grown seedlings was higher than that of bowl-shaped blanket tray grown seedlings and soft plastic flat plate grown seedlings. In addition,the green-returning period of the potted-tray grown seedlings was significantly shortened. Compared to the bowl-shaped blanket tray grown seedlings and soft plastic flat plate grown seedlings,the potted-tray grown seedlings were more suitable to transplant by machine in the wheat-rice double cropping areas of Chengdu Plain.
出处
《西南农业学报》
CSCD
北大核心
2015年第4期1548-1552,共5页
Southwest China Journal of Agricultural Sciences
基金
十二五"国家科技支撑计划项目(2012BAD04B13)
十二五"国家科技支撑计划项目(2011BAD16B05)
国家公益性行业(农业)科研专项"西南水旱轮作区规模化周年高效生产技术研究与示范"(201303129)
农业部重大研究专项(超级稻配套栽培技术开发与集成)
四川省科技支撑计划项目"稻麦丰产高效生产技术集成与示范"(2010NZ0093)
关键词
穴盘
钵苗插秧机
秧龄
插秧质量
返青期
Tray
Potted seedling transplanter
Seedling age
Transplanting quality
Green-returning period
