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Study of new growing technique of the rice crop, Consolidation of the Paddy field and physical property of soil

水稻种植新技术、稻田整治及土壤物理性质研究

基本信息

批准号：
07660331
负责人：
KOMAMURA Masaharu
金额：
$ 1.28万
依托单位：
Tokyo University of Agriculture
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1996
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07660331/
关键词：
Consolidation of the paddy field Unplowing growing Soil moisture Water management of the paddy field Physical property of soil Well-drained and direct seeding method Shallow underdrainage Growing technique of the rice crop

项目摘要

The purpose of this study is to make it clear that the influence of advanced technique of the rice crop growing on farmland consolidation and physical properties of soil and is to contribute to promote new technique.We selected the farmland which is implementing direct seeding method : (1)the unplowing and well-drained paddy field in Okayama city (Okayama prefecture), (2)the ponding irrigated and well-drained paddy field in Yachiyo city (Chiba prefecture) and (3)the ponding irrigated paddy field in which shallow underdrain has constructed in Fukuroi city (Shizuoka prefecture), gathered information by hearing such as glowing strategy and the management of water, and measured the physical properties of soil in situ and in laboratoly.As a result, the drainage was better and soil structure progressed more clearly in unplowing, well-drained or direct seeding paddy field than that to be growing in the conventional way. Also, at the investigation field, the drainage became better not only because of new growing technique but also underdrainage, then the workability of the agricultural machine improved.In the future, we would like to make clear about the influence which the glowing technique of the new rice crop exerts on the environment, e.g. the restraint of the methane occurrence, the reduction of the applying amount with agricultural chemicals and chemical fertilizers, the diminution in the use of the machine.

本研究旨在了解先进水稻种植技术对农田固结和土壤物理性质的影响，为新技术的推广做出贡献。我们选择了正在实行直播的农田：(1)冈山市（冈山县）未耕且排水良好的水田，(2)千叶县八代市（千叶县）积水灌溉且排水良好的水田，(3)福冈县（静冈县）建有浅层地下排水的积水灌溉水田，通过聆听等方式收集了放光策略和水管理等信息，并在现场和实验室测量了土壤的物理性质。结果表明，与常规耕作方式相比，免耕、排水良好或直接播种稻田的排水效果更好，土壤结构发育更清晰。此外，在调查现场，由于新的种植技术和欠排水，排水状况有所改善，从而提高了农机的可使用性。今后，我们想弄清楚水稻新作物的发光技术对环境的影响，如抑制甲烷的发生，减少农药和化肥的施用量，减少机器的使用。