Why Monochoria vaginalis is dominant in organic paddy fields?
Why Monochoria vaginalis is dominant in organic paddy fields?
批准号:
20580017
负责人:
HASEGAWA Hiroshi
金额:
$3.0万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Scientific Research (C)
财政年份:
2008
资助国家:
日本
项目状态:
已结题
起止时间:
2008 至 2010
中文摘要
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英文摘要
A paddy weed, Monochoria vaginalis, is dominant in organic paddy fields, and seed production was averaged 15,600 seeds/m^2. The seed production was estimated with the capsule number. We found buried seeds of Monochoria vaginalis did not have seasonality. A method was developed to separate Monochoria vaginalis seeds from sand and organic debris using Stokes' equation. The seeds of Monochoria vaginalis in soils tended to move upward after puddlings. The emergence of Monochoria vaginalis required 220℃・d after the first puddling, and the emerged Monochoria vaginalis was successfully buried with the succeeding puddlings. But, the number of Monochoria vaginalis buried was estimated as 2-4% of the seed bank.
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南東北の有機栽培農家水田における複数回代掻きが田植え前の雑草の出芽,残草および雑草シードバンクに及ぼす影響
东北有机稻田插秧前多次浸水对杂草出苗、残草和杂草种子库的影响
DOI:
--
发表时间:
2010
期刊:
有機農業研究 2(2)
影响因子:
--
作者:
[長谷川浩]
通讯作者:
長谷川浩
有機水稲栽培におけるシードバンクとコナギ優占の実態-東日本における事例-
种子库和 Konagi 在有机稻种植领域的主导地位的现实 - 日本东部的案例研究 -
DOI:
--
发表时间:
2008
期刊:
有機農業研究年報 8
影响因子:
--
作者:
[長谷川浩, 長谷川浩, 長谷川浩]
通讯作者:
長谷川浩
水稲有機栽培における雑草対策-現状と展望-
有机水稻种植中的杂草控制-现状与前景-
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
[長谷川浩, 長谷川浩, 長谷川浩, 臼井靖浩・長谷川浩, 臼井靖浩・宮本英揮・長谷川浩, 長谷川浩]
通讯作者:
長谷川浩
有機農業水田におけるコナギの個体群動態と種子生産量の推定
有机种植稻田中小蝽种群动态和种子产量的估算
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[長谷川浩, 長谷川浩, 長谷川浩, 臼井靖浩・長谷川浩]
通讯作者:
臼井靖浩・長谷川浩
有機栽培水田におけるコナギの個体群動態と種子生産量の推定
有机稻田小蝽种群动态和种子产量估算
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
[長谷川浩, 長谷川浩, 長谷川浩, 臼井靖浩・長谷川浩, 臼井靖浩・宮本英揮・長谷川浩]
通讯作者:
臼井靖浩・宮本英揮・長谷川浩
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