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Effect of cultivated environments on eating quality and taste of paddy rice

栽培环境对水稻食味品质的影响

基本信息

批准号：
07556006
负责人：
IKEDA Takeshi
金额：
$ 9.34万
依托单位：
Niigata University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1995
资助国家：
日本
起止时间：
1995 至 1997
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07556006/
关键词：
Taste Slow released fertilizer Nitrogen content Milled rice Root system Rice cultivar 'Koshihikari'Topdressing Region along the Japan Sea

项目摘要

Three year's experiments were summarized as follows :Niigata University 1995, Yield in Koshihikari was shown as following order across the treatments : LP100 (slow released fertilizer, available during 100 days) >LP30>LP50>LP70>Control N% in milled rice was the lowest in control and LP30.1996, N% tended to be higher in southern than in northern parts of Japan, however oil % not clear according to infra-red analyzer. 1997, Yield was higher in A type's dressings than in V type's ones and N% was lower in A type's ones.Yamagata University 1995, The effeciency of N amount to produce the number of grains per unit area (ENG) at heading was higher in earlier topdressing (30 days before heading) and in smaller shading. The later topdressing produce higher N% in milled grain. 1996, In case of distributing the basal dressing in deeper layr, ENG became lower and N% in milled grain was higher. 1997, The higher correlation was shown between N% per a rough rice at full heading date and N% in milled grain.Kanazawa University 1995, The score in eating quality was 94 and 74 in case of conventional and nontillage transplanting plots with LP70 respectively. 1996, The root distributed below 10cm soil layr increased with applying Calsium sulfade (gypssum). The better eating quality was shown in LP fertilizer than in manure. 1997, N% in milled rice was higher and whole grain ratio was getting to be lower with applying organic fertilizer (fermented organic fertilizer by micro-organism).

三年试验总结如下：新泻大学1995年，越光县各处理的产量顺序为：LP100（缓释肥，100天有效）>LP30>LP50>LP70>对照稻中氮素含量在对照稻中最低，LP30.1996年，日本南部氮素含量高于北部，但红外分析仪显示含油率不清。1997年，A型灌浆产量高于V型灌浆，N%低于A型灌浆。早追肥（抽穗前30天）和遮荫小，氮素对抽穗时单位面积籽粒数的影响较高。追肥越晚，精粮中氮含量越高。1996年，施基肥越深，籽粒氮含量越低，籽粒氮含量越高。1997年，稻谷全抽穗期每粒粗米氮含量与精米氮含量相关性较高。金泽大学（Kanazawa University, 1995），用LP70进行常规和免耕移栽地皮的食性质量评分分别为94分和74分。1996年，随着硫酸钙（石膏）的施用，10cm土层下根系分布增加。低脂肥的食用品质优于粪肥。1997年，施用有机肥（微生物发酵有机肥）后，精米氮含量逐渐升高，全粒率逐渐降低。