{"title":"矢车菊对冬小麦的影响","authors":"J. Guillemin, Bachar Alrustom, H. Darmency","doi":"10.1080/01448765.2021.2006783","DOIUrl":null,"url":null,"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.","PeriodicalId":8904,"journal":{"name":"Biological Agriculture & Horticulture","volume":null,"pages":null},"PeriodicalIF":1.4000,"publicationDate":"2021-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Estimated effects of cornflower presence on winter wheat\",\"authors\":\"J. Guillemin, Bachar Alrustom, H. Darmency\",\"doi\":\"10.1080/01448765.2021.2006783\",\"DOIUrl\":null,\"url\":null,\"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.\",\"PeriodicalId\":8904,\"journal\":{\"name\":\"Biological Agriculture & Horticulture\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2021-11-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biological Agriculture & Horticulture\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1080/01448765.2021.2006783\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"AGRONOMY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biological Agriculture & Horticulture","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1080/01448765.2021.2006783","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"AGRONOMY","Score":null,"Total":0}
Estimated effects of cornflower presence on winter wheat
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.
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.