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作物学报 ›› 2009, Vol. 35 ›› Issue (5): 930-939.doi: 10.3724/SP.J.1006.2009.00930

• 耕作栽培·生理生化 • 上一篇    下一篇

免耕抛秧稻的立苗特性与立苗技术研究

吴建富1,2，潘晓华2,* ，石庆华2   

  1. 1江西农业大学国土资源与环境学院，江西南昌330045；2江西农业大学农学院/江西省作物生理生态与遗传育种重点实验室/农业部双季稻生理生态与栽培重点实验室，江西南昌330045
  • 收稿日期:2008-10-17 修回日期:2009-01-31 出版日期:2009-05-12 网络出版日期:2009-03-23
  • 通讯作者: 潘晓华，E-mail：xhuapan@163.com，Tel:0791-3813490
  • 基金资助:

    本研究由国家“十一五”科技支撑计划项目（2006BAD02A04），江西省教育厅项目资助。

Seedling Standing Characteristics and Technology of No-tillage and Cast Transplanting Rice

WU Jian-Fu12,PAN Xiao-Hua2*,SHI Qing-Hua2   

  1. 1College of Land Resources and Environment, Jiangxi Agricultural University,Nanchang 330045,China；2College of Agronomy，Jiangxi Agricultural University/Key Laboratory of Crop Physiology，Ecology and Genetic Breeding of Jiangxi Province/Key Laboratory of Double Cropping Rice Physiology，Ecology and Cultivation，Ministry of Agriculture，Nanchang 330045，China
  • Received:2008-10-17 Revised:2009-01-31 Published:2009-05-12 Published online:2009-03-23
  • Contact: PAN Xiao-Hua，E-mail：xhuapan@163.com，Tel:0791-3813490

PDF

1092

被引次数

48

摘要：

于2005—2006年采用大田和盆栽模拟试验，研究了免耕抛秧稻的立苗特性及立苗技术。结果表明，适宜的浅水(1 cm左右)抛栽、短秧龄(20 d)抛栽、前期适当增施氮肥、适量的稻草还田(1 200 kg hm-2)、旱育秧抛栽和喷施多效唑、α-萘乙酸浸种处理均有利于扎根立苗，早生快发，促进地上部生长。非直立苗的立苗速度与秧龄长短有很大关系，短秧龄有利于加快非直立苗的立苗速度和水稻生长。秧苗抛栽后立苗期每株平均根数和根长、地上部可溶性糖和全氮含量都与立苗密切相关。该结果为水稻免耕抛秧栽培技术的推广应用提供参考价值。

关键词: 稻田, 水稻, 免耕抛栽, 立苗特性与技术, 影响因素

Abstract:

The field experiment and pot experiment was conducted during 2005–2006 to study the seedling standing characteristics and technology of no-tillage cast transplanting rice. The results showed that no-tillage seedling broadcasting cultivation was beneficial to root growth, seedling standing early and fast, and shoot growth under the conditions of appropriate low water layer (around 1 cm), using younger seedlings, increasing appropriate N at the early growth stage, appropriate straw incorporation (1 200 kg ha-1), dry land seedling raising on plastic trays and spraying paclobutrazol at 2.5 leaf and soaking seed by α-naphthylacetic acid. The standing speed of non erect seedlings had great relation to seedling age, short seedling age quickened seedling standing and promoted rice growth. There were close correlations between average root number and root length per plant, soluble sugar, total N content ofshoot and seedling standing after broadcasting seedlings with no-tillage. The results provided a reference for popularizing and applying the technology of no-tillage and cast transplanting rice in the future.

Key words: Paddy field, Rice, No-tillage cast transplanted, Seedling standing characterstics and Technology, Factors


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