Estimated effects of cornflower presence on winter wheat

IF 1.4 4区 农林科学 Q3 AGRONOMY Biological Agriculture & Horticulture Pub Date : 2021-11-26 DOI:10.1080/01448765.2021.2006783
J. Guillemin, Bachar Alrustom, H. Darmency
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Abstract

ABSTRACT Cornflower (Cyanus segetum Hill) used to be very frequent and abundant in winter wheat a few decades ago, but because of agricultural intensification it is now an insignificant weed, even classified as endangered in Western Europe. However, cornflower produces nectar that is a resource for pollinators and crop pest predators and parasitoids. To gain benefit from this resource, it is necessary to manage the presence of cornflowers and to maintain the population at a balance that ensures the beneficial ecosystem services whilst avoiding competition with the arable crops. This paper describes bispecific competition trials between cornflower and winter wheat in small experimental plots. The annual experimental conditions were highly variable, leading to plant densities that were too high or too low to estimate a competition threshold. The results provided relevant information on intraspecific competition among cornflower plants and its effect on the growth, the biomass and the yield of wheat. Conventional and organic farming could gain from growing some weeds like cornflower in the fields to provide ecosystem services for the crops.
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矢车菊对冬小麦的影响
摘要几十年前,矢车菊(Cyanus segetum Hill)在冬小麦中曾经非常常见和丰富,但由于农业集约化,它现在是一种微不足道的杂草,甚至在西欧被列为濒危物种。然而,矢车菊生产的花蜜是传粉昆虫、作物害虫捕食者和寄生蜂的资源。为了从这种资源中获得利益,有必要管理矢车菊的存在,并保持种群平衡,确保有益的生态系统服务,同时避免与可耕地作物竞争。本文介绍了矢车菊和冬小麦在小型试验区的双特异性竞争试验。每年的实验条件变化很大,导致植物密度过高或过低,无法估计竞争阈值。研究结果为矢车菊植物种内竞争及其对小麦生长、生物量和产量的影响提供了相关信息。传统和有机农业可以通过在田里种植一些杂草(如矢车菊)来为作物提供生态系统服务。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Biological Agriculture & Horticulture
Biological Agriculture & Horticulture 农林科学-农艺学
CiteScore
3.30
自引率
6.70%
发文量
18
审稿时长
>36 weeks
期刊介绍: Biological Agriculture & Horticulture aims to act as the central focus for a wide range of studies into alternative systems of husbandry, and particularly the biological or organic approach to food production. The Journal publishes work of a sound scientific or economic nature related to any aspect of biological husbandry in agriculture, horticulture and forestry in both temperate and tropical conditions, including energy and water utilization, and environmental impact.
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