{"title":"玉米连作是否会导致强秆草(Sorghum alepense, L.)的侵染?珀耳斯。)?","authors":"M. Simić, V. Dragičević, M. Brankov, Milena Senk","doi":"10.2298/PIF2003161S","DOIUrl":null,"url":null,"abstract":"Experiments were conducted in the Maize Research Institute (MRI), Zemun Polje, Belgrade, in order to examine how economically driven continuous cropping of maize influences weed infestation, especially the distribution and abundance of Jonhsongrass, as well as maize productivity. The maize hybrid ZP 606 was grown in continuous cropping from 2009 to 2018 at a density of 59,500 plants ha. The experimental field was split into a part treated with the pre-emergence herbicide isoxaflutole + metolachlor (750 + 960 g a.i.) and untreated control. The level of complete weed infestation was evaluated 4-5 weeks after herbicide application by determining the number of weed individuals per species (NI), total fresh biomass (TB) and total dry weight (TDW) of all weeds and Johnsongrass fresh biomass (JB) and dry weight (JDW). Maize harvest index (HI) and grain yield (GY) were determined at the end of each growing period.","PeriodicalId":19801,"journal":{"name":"Pesticidi I Fitomedicina","volume":"35 1","pages":"161-172"},"PeriodicalIF":0.0000,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Does continuous cropping of maize contribute to infestation with Johnsongrass (Sorghum alepense (L.) Pers.)?\",\"authors\":\"M. Simić, V. Dragičević, M. Brankov, Milena Senk\",\"doi\":\"10.2298/PIF2003161S\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Experiments were conducted in the Maize Research Institute (MRI), Zemun Polje, Belgrade, in order to examine how economically driven continuous cropping of maize influences weed infestation, especially the distribution and abundance of Jonhsongrass, as well as maize productivity. The maize hybrid ZP 606 was grown in continuous cropping from 2009 to 2018 at a density of 59,500 plants ha. The experimental field was split into a part treated with the pre-emergence herbicide isoxaflutole + metolachlor (750 + 960 g a.i.) and untreated control. The level of complete weed infestation was evaluated 4-5 weeks after herbicide application by determining the number of weed individuals per species (NI), total fresh biomass (TB) and total dry weight (TDW) of all weeds and Johnsongrass fresh biomass (JB) and dry weight (JDW). Maize harvest index (HI) and grain yield (GY) were determined at the end of each growing period.\",\"PeriodicalId\":19801,\"journal\":{\"name\":\"Pesticidi I Fitomedicina\",\"volume\":\"35 1\",\"pages\":\"161-172\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Pesticidi I Fitomedicina\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.2298/PIF2003161S\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pesticidi I Fitomedicina","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.2298/PIF2003161S","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
摘要
在贝尔格莱德Zemun Polje玉米研究所(MRI)进行了实验,以研究经济驱动的玉米连作如何影响杂草的侵袭,特别是强松草的分布和丰度,以及玉米的生产力。2009年至2018年,玉米杂交品种zp606连续种植,密度为59,500株公顷。试验田分为出苗前除草剂异草氟唑+异甲草胺(750 + 960 g a.i)处理和未处理两部分。施用除草剂4 ~ 5周后,通过测定杂草个体数(NI)、所有杂草的总新鲜生物量(TB)和总干重(TDW)以及约翰逊草的新鲜生物量(JB)和干重(JDW)来评价杂草的完全侵染程度。在每个生育期结束时测定玉米收获指数(HI)和籽粒产量(GY)。
Does continuous cropping of maize contribute to infestation with Johnsongrass (Sorghum alepense (L.) Pers.)?
Experiments were conducted in the Maize Research Institute (MRI), Zemun Polje, Belgrade, in order to examine how economically driven continuous cropping of maize influences weed infestation, especially the distribution and abundance of Jonhsongrass, as well as maize productivity. The maize hybrid ZP 606 was grown in continuous cropping from 2009 to 2018 at a density of 59,500 plants ha. The experimental field was split into a part treated with the pre-emergence herbicide isoxaflutole + metolachlor (750 + 960 g a.i.) and untreated control. The level of complete weed infestation was evaluated 4-5 weeks after herbicide application by determining the number of weed individuals per species (NI), total fresh biomass (TB) and total dry weight (TDW) of all weeds and Johnsongrass fresh biomass (JB) and dry weight (JDW). Maize harvest index (HI) and grain yield (GY) were determined at the end of each growing period.