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A Practical Study on development of a seeding machine with correct seeding depth for direct seeding with coated rice in submerged paddy field.

水田直播包衣稻正确播深播种机研制的实践研究

基本信息

批准号：
02556034
负责人：
NAKAMURA Yoshiaki
金额：
$ 1.6万
依托单位：
Ishikawa Agricultural College
依托单位国家：
日本
项目类别：
Grant-in-Aid for Developmental Scientific Research (B)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1992
项目状态：
已结题

项目摘要

Development of a new seeding machine for DSSP (direct seeding with coated rice in submerged paddy field) has been completed. This seeding machine is developed for improvement and stabilization of percentage establishment for DSSP. And it has the correct seeding depth that are not under the influence of soil texture and soil hardness.The followings were especially considered for the design of it.1.Nearly 1 cm seeding depth.2.Ability of seeding in the week paddy field immediately after puddling.In this study, a seed feeding mechanism of the old seeding machine was applied to the new seeding machine. Only direct seeding mechanism which seeded the coated seed rice in paddy soil was manufactured as an experiment.A ditcher, it is a basic element of the old seeding machine, was did away with. A seeding wheel was developed newly. Coated rice were seeded in submerged paddy field by the seeding wheel.In the case of week paddy field, the soil rose to the top of a float from the bottom of it, and dropped coated rice along a seed guide stayed on the rose soil. As a result, they were not seeded in the paddy field by the seeding wheel and carried on the surface of paddy field. For solution of these problems, some new mechanism were add to the float and the seed guide.For three years, many experiments have been tried on a soil tank and paddy field. The new seeding machine, which is able to seed the coated rice at the stable depth and in very week paddy field.It is expected that the result of this study will be made good use of, cultivation by DSSP will be popularized, and the cost of rice production will be reduced.

新型DSSP（水田包膜稻直播）播种机的研制已完成。该播种机是为了改善和稳定 DSSP 的播种率而开发的。并具有不受土壤质地和土壤硬度影响的正确播种深度。其设计时特别考虑了以下因素：1.近1厘米的播种深度。2.拌匀后在周水田中立即播种的能力。本研究将旧播种机的输种机构应用到新型播种机上。作为实验，仅制造了将包衣种子水稻播种在稻田中的直接播种机。开沟器是旧播种机的基本元件，被取消。新开发了播种轮。通过播种轮将包衣稻米播种在淹没的稻田中。在周稻田的情况下，土壤从浮子底部上升到浮子的顶部，沿着种子引导件落下的包衣稻米留在玫瑰土上。结果，它们没有被播种轮播种到稻田中，而是被带到稻田表面。为了解决这些问题，在浮子和种子引导器上添加了一些新的机构。三年来，我们在土箱和稻田上进行了许多实验。新型播种机能够在稳定的深度和非常脆弱的稻田中播种包膜水稻。预计本研究成果将得到充分利用，推广DSSP栽培，降低水稻生产成本。