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＜departmental bulletin paper＞
Effects of Fertilization and Cutting Height on Growth and Yield of Ratooning Rice

Creator
Author PID
K001673
Creator Name
望月, 俊宏
Mochizuki, Toshihiro
Affiliation
Affiliation Name
九州大学大学院生物資源環境科学研究科農業生産生態学講座
Laboratory of Agricultural Ecology, Division of Bioresource and Bioenvironmental Sciences, Graduate School, Kyushu University
Author PID
L003444
Creator Name
梶原, 良徳
Kajihara, Yoshinori
Affiliation
Affiliation Name
九州大学大学院生物資源環境科学研究科農業生産生態学講座
Laboratory of Agricultural Ecology, Division of Bioresource and Bioenvironmental Sciences, Graduate School, Kyushu University
Author PID
L003603
Creator Name
鳥飼, 芳秀
Torikai, Yoshihide
Affiliation
Affiliation Name
九州大学大学院生物資源環境科学研究科農業生産生態学講座
Laboratory of Agricultural Ecology, Division of Bioresource and Bioenvironmental Sciences, Graduate School, Kyushu University
Author PID
L003306
Creator Name
中川, 幸夫
Nakagawa, Yukio
Affiliation
Affiliation Name
九州大学大学院生物資源環境科学研究科農業生産生態学講座
Laboratory of Agricultural Ecology, Division of Bioresource and Bioenvironmental Sciences, Graduate School, Kyushu University
Language
Japanese
Publisher
九州大學農學部
Faculty of Agriculture, Kyushu University
Date
2000-02
Source Title
Science bulletin of the Faculty of Agriculture, Kyushu University
Vol
54
Issue
3/4
First Page
115
Last Page
120
Publication Type
Version of Record
Access Rights
open access
JaLC DOI
https://doi.org/10.15017/23640
Related DOI
九州大學農學部學藝雜誌 || 54(3/4) || p115-120
Science bulletin of the Faculty of Agriculture, Kyushu University || 54(3/4) || p115-120
http://www.agr.kyushu-u.ac.jp/
Related URI
九州大學農學部學藝雜誌 || 54(3/4) || p115-120
Science bulletin of the Faculty of Agriculture, Kyushu University || 54(3/4) || p115-120
http://www.agr.kyushu-u.ac.jp/
Relation
九州大學農學部學藝雜誌 || 54(3/4) || p115-120
Science bulletin of the Faculty of Agriculture, Kyushu University || 54(3/4) || p115-120
http://www.agr.kyushu-u.ac.jp/

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Details

Record ID
23640
Peer-Reviewed
Unrefereed
ISSN
0368-6264
NCID
AN0005519X
Notes
Effects of fertilization and cutting height on growth and yield of ratooning rice were investigated. The highest grain yield of ratooning rice was obtained in highest fertilization and higher cutting plot, which was 199gm^-2 and 229gm^-2, respectively, in Koshihikari and Yumetsukushi. Total grain yields of parent and ratoon crops were about 700gm^-2 in both varieties. Dry matter yield was highest in the same plot, which was 780gm^-2 and 739gm^-2, respectively, in Koshihikari and Yumetsukushi, and total dry matter yields were over 2000gm^-2 in both varieties. These results suggested that the ratooning rice is useful as a succeeding crop of an early culture rice and/or a forage crop in Northern Kyushu. There were significant effects of fertilization and cutting height on the yields of grain and dry matter and the number of tillers in ratooning rice at 1 % or 5 % probability levels. Fertilization and higher cutting increased the number of tillers, resulting in the increase in grain and dry matter yields. The increase in the number of ripened tillers by the both treatments was mainly due to the increase in the number of secondary and tertiary ones. The leaf number of fourth tillers was smaller than that of others.
再生二期作稲の生育・収量におよぼす施肥量と刈り高さの影響について調査した結果,コシヒカリ,夢つくし共に刈り高さが高く,施肥量が多いほど玄米収量は多く,最高収量はコシヒカリでは199gm^-2,夢つくしでは229gm^-2で,一期作の収量と合わせると約700gm^-2であった.また,地上部乾物重も倍肥・高刈り区で最大となり,それぞれ780gm^-2および739gm^-2,一期作と合わせた乾物収量は2000gm^-2以上となった.収量構成要素のうち,一株茎数には施肥水準および刈り高さ間に,有効茎率には施肥水準間に有意差が認められ,施肥および高刈りによって有効茎数が増加し,玄米収量が高くなったことが明らかであった.再生茎の発生節位の種類数は,施肥量が多く,高刈りで多くなる傾向があったが,処理間の茎数の差は,2次および3次分げつの茎数の差によるものであった.再生(有効)茎の出葉数は,処理間に大きな違いは認められなかったが,1,2および3次分げつに比べ,4次分げつで、少なかった.
Created Date 2012.07.31
Modified Date 2022.11.11

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