摘要
[目的]探索水稻简化节水高效栽培模式。[方法]连续3年进行水稻旱直播、节水、省工、栽培及除草技术试验,研究“绿旱一号”高产稳产的旱直播节水栽培技术。[结果]撒播方式最容易被群众接受,播量以52.5-60.0 kg/hm2为宜。“旱育保姆”拌种提高了种子的出苗率和秧苗的抗旱能力。旱直播水稻最佳播种深度为2.5-3.5 cm。水稻播种喷施除草剂后覆盖麦秸草,出苗率提高了15.85%,抑草效果提高了17.8%-71.4%。秧苗5-6叶期及分蘖末期喷施旱除一号＋二甲四氯能较好地防除田间杂草。把好出苗、除草及孕穗期浇水关,旱稻可以获得理想产量。[结论]水稻旱直播节水栽培方法简单,工效高,同时还能利用秸秆,应加大宣传推广。
[Objective] The aim of the research was to discuss the simplified water-saving and high-efficiency cultivation model in rice. [Method] The tests of dry direct seeding, saving water, saving labor, cultivation and weeding technology were continuously made for 3 years to study the dry direct seeding water-saving cultivation technology for high and stable yield of Lvhan No 1. [Result] The boardcast sowing mode was easiest to be accepted by the masses and the suitable sowing quantity was 52.5 - 60.0 kg/hm^2 .Tbe seed dressing with Hanyubaomu increased the seedling ernergence rate of seeds and the drooght-resistant ability of seedlings. The optimum sowing depth of dry direct seeding was 2.5 - 3.5 cm. After spraying weedicides, the seedling emergence rate of rice seeds with wheat straw mulching was increased by 15,85% and the effect of suppressing weeds was increased by 17.8% - 71.4%. Spraying seedlings with Hanchu 1 and MCPA at the stage of 5 - 6 leaves and the tillering stage could better control the weeds in the field. If the seedling emergence, weeding and watering in booting stage were done well, the upland rice could obtain the ideal yield. [ Conclusion] The dry direct seeding and water-saving cultivation method was sample and its efficacy was high. Meanwhile, straws could be used, so the propaganda and generalization should be strengthened.
出处
《安徽农业科学》
CAS
北大核心
2008年第9期3566-3568,共3页
Journal of Anhui Agricultural Sciences
基金
旱稻除草剂研制开发与旱稻示范推广项目
江淮分水岭旱稻节水高效栽培技术研究项目
关键词
旱稻
水稻
旱直播节水栽培
除草技术
Upland rice
Rice
Dry direct seeding and water-saving cultivation
Weeding technology
