Tolerance of Rice (Oryza sativa L.) and Echinochloa Weeds to Growth Suppression by Rice Straw Added to Paddy Soil in Relation to Iron Toxicity

被引：7

作者：

Nozoe, Takuhito ^{[1
]}

Shinano, Takuro ^{[1
]}

Tachibana, Masaaki ^{[2
]}

Uchino, Akira ^{[3
]}

机构：

[1] Natl Agr Res Ctr Hokkaido Reg, Sapporo, Hokkaido 0628555, Japan

[2] Natl Agr Res Ctr Tohoku Reg, Akita 0140102, Japan

[3] Natl Agr Res Ctr, Tsukuba, Ibaraki 3058666, Japan

来源：

PLANT PRODUCTION SCIENCE | 2010年 / 13卷 / 03期

关键词：

Echinochloa weed; Ferrous iron; Growth suppression; Organic material; Paddy soil; Rice; Weed; GALLI BARNYARD GRASS; GERMINATION; CULTIVARS; PLANTS; SEEDS;

D O I：

10.1626/pps.13.314

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

The effects of addition of rice straw to submerged soil on the emergence and growth of rice (Oryza saliva L.) and two paddy weeds (Echinochloa oryzicola Vasing. and Echinochloa crus-galli (L.) Beauv. van crus-galli) were investigated. Rice straw suppressed both the emergence and growth of transplanted plants depending on the amount of rice straw added (0%, 0.3%, 0.6% and 0.9% (w/w)) in the order of E. crus-galli > E. oryzicola > rice. The severe suppression of emergence and growth of E. crus-galli in the presence of 0.9% rice straw in hydroponic culture was thought to be due to high Fe content of the shoots. Since the difference in tolerance for the toxicity of rice straw is an important factor, the addition of organic materials into soil may help to suppress Echinochloa weeds selectively.

引用

页码：314 / 318

页数：5

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