A Practical Study on the Stable-high-yielding Culture of Paddy Rice

水稻稳产高产栽培实践研究

基本信息

批准号：
59860002
负责人：
NAKAMURA Yoshiaki
金额：
$ 2.24万
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
财政年份：
1984
资助国家：
日本
起止时间：
1984 至 1986
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-59860002/
关键词：
DSSP DSSP Drill Paddy Soil Hardness Tester Calper Coated Rice Seed Stem length density Seeding Density Ear manuaring カルパー有効茎歩合穂長 1穂籾数第2葉第2節間長

项目摘要

A three-year project aiming at reduction of laber and high-yielding culturein rice production has been completed. The achivement includes developments ofthe seeding machine for DSSP (Direct seeding with coated rice in submerged paddyfi eld), a measuring device for a soil parameter, establishment of high-yieldingculture method and new type fertilizer.The followings are reading findings and developments in this project.1.Development of a direct rice seeder with narrow interrow spacing appricators (15 cm-20 cm). 2.Developemt of a soil hardness tester used for wet paddy soil. 3.Determination of optimum establishment of seedling and seeding density for maximum yield per unit area. 4.Clarification of the relationships between interrow spacing,intrarow spacing number of seeds to drill per spot and yield based on land productivity. 5.Confirmation of the effects of three different fertilizer application method (Conventional, fullow-side fertilizer application,whole layer application of slow-acting fertilizer) on the growth of DSSP rice. 6.Clarification of the relationships between water depth of paddy field and number of stems per uint area. 7.Development of mathematical models to describe relationships between light and shade of leaf and percentage of productive stems , and between that and stem length, respectively. 8.Clarification of the relationships between number of grains per head,second leaf length, and second internode length. 9.Clarification of the relationships between times of top dressing and ear manuring and number of productive stems per area and grains per head. 10.Determination of management criteria based on aiming yield by a management practice using the chlorophylemeter. 11.Introduction of a new parameter "Stem length density (m/ <m^2> )"

旨在减少水稻生产劳动力和高产栽培的三年期项目已经完成。成果包括DSSP（水田包衣直播）播种机的研制、土壤参数测量装置的研制、高产栽培方法的建立和新型肥料的研制。以下是该项目的阅读成果和进展.1.开发窄行距施肥器（15 cm-20 cm）水稻直播机。 2.湿稻土土壤硬度测定仪的研制。 3.确定单位面积最大产量的最佳苗位和播种密度。 4.根据土地生产力阐明行距、每点播播种子数与产量之间的关系。 5、验证了三种不同施肥方式（常规施肥、全层施缓效肥）对DSSP水稻生长的影响。 6.阐明了稻田水深与单位面积茎数的关系。 7.开发数学模型来分别描述叶子的光和影与生产性茎的百分比之间的关系，以及它与茎长度之间的关系。 8.阐明每头粒数与第二叶长度、第二节间长度之间的关系。 9.明确追肥、穗肥次数与单位面积产茎数、单头粒数的关系。 10.根据使用叶绿素计的管理实践的目标产量确定管理标准。 11.引入新参数“茎长密度(m/<m^2>)”