[1]高同彬,何付丽,赵长山.窄行平作密植大豆田杂草的危害特点[J].大豆科学,2008,27(03):536-538,542.[doi:10.11861/j.issn.1000-9841.2008.03.0536]
　GAO Tong-bin,HE Fu-li,ZHAO Chang-shan.Harm Characteristics of Weeds in Flat-planting Narrow-row Solid-seeded Soybean[J].Soybean Science,2008,27(03):536-538,542.[doi:10.11861/j.issn.1000-9841.2008.03.0536]
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窄行平作密植大豆田杂草的危害特点

《大豆科学》[ISSN:1000-9841/CN:23-1227/S] 卷: 第27卷 期数: 2008年03期 页码: 536-538,542 栏目: 出版日期: 2008-06-25
Title:
Harm Characteristics of Weeds in Flat-planting Narrow-row Solid-seeded Soybean
文章编号:
1000-9841(2008)03-0536-03
作者:
高同彬; 何付丽; 赵长山
东北农业大学农学院，黑龙江 哈尔滨 150030
Author(s):
GAO Tong-bin; HE Fu-li; ZHAO Chang-shan
Agronomy College of Northeast Agricultural University，Harbin 150030，Heilongjiang，China
关键词:
窄行平作密植; 大豆; 杂草危害
Keywords:
Flat-planting narrow-row solid-seeding; Soybean; Weed damage
分类号:
S565.1
DOI:
10.11861/j.issn.1000-9841.2008.03.0536
文献标志码:
A
摘要:
化学除草是窄行平作密植大豆田唯一的杂草防除方式，草害水平和除草时期将直接影响化学除草的经济效益。研究不同杂草发生密度及与大豆共生时期对窄行平作密植栽培模式下大豆产量的影响，以明确窄行平作密植大豆田杂草化学防除的适宜时期和草害水平，提高化学除草的效益。利用对角线五点取样法，调查了窄行平作密植大豆田杂草的危害特点。结果表明：野燕麦发生密度（x）与大豆收益（y^）之间的曲线关系为y^= 2267.2Ln(x) - 4934.2，野燕麦的理论密度阈限为10.75株.m-2；苍耳发生密度为6株.m-2时，与大豆全生育期共生使大豆减产61.1％。
Abstract:
Chemical weeding is the only method of weed control in flat-planting narrow-row solid-seeded soybean field，weed damage level and weeding period directly influences it’s economic benefit.In order to nail down the reasonable period and weed damage level of chemical weeding in flat-planting narrow-row solid-seeded soybeans and increase economic return of weed chemical control，we studied the influence of different weed density and intergrowth period on soybean yield.The harm characteristics of weed damage was surveyd by sampling method of diagonal five pionts in flat-planting narrow-row solid-seeded soybeans.The results showed that the curve between density of Avena fatua L.(x) and soybean yield(y) was y^= 2267.2Ln(x) - 4934.2，the theoretical economic threshold level was 10.75 plant.m-2.The yield of soybean declined by 61.1% when Xanthium sibiricum Patrin.was intergrowth with soybean in whole growth duration under the density of 6 plant.m-2.

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备注/Memo

作者简介：高同彬（1963-），男，博士，研究方向为农田杂草防除与现代农业构建。E-mail: gtongbin@sina.com。

更新日期/Last Update: 2014-10-08