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Utilizing Subsurface Drip Irrigation and Conservation Tillage in Cotton Production Systems 地下滴灌和保护性耕作在棉花生产系统中的应用
Srx Agriculture Pub Date : 2010-03-14 DOI: 10.3814/2010/725381
J. Sij, D. Bordovsky, David L. Jones, J. E. Slosser
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引用次数: 9
Effects of Population Density and Nitrogen Rate in Ultra Narrow Row Cotton 超窄行棉种群密度和施氮量的影响
Srx Agriculture Pub Date : 1900-01-01 DOI: 10.3814/2010/868723
W. Molin, Josie A. Hugie
{"title":"Effects of Population Density and Nitrogen Rate in Ultra Narrow Row Cotton","authors":"W. Molin, Josie A. Hugie","doi":"10.3814/2010/868723","DOIUrl":"https://doi.org/10.3814/2010/868723","url":null,"abstract":"A field study was conducted to investigate the effects of population density and nitrogen rate on yield, growth, and fiber response of ultra narrow row (UNR) cotton. Stand loss occurred at densities greater than 22 plants m − 2 and nitrogen rates greater than 56 kg  ha − 1 and stand loss exceeded 20% at harvest. Seed cotton yields were similar across populations and rates of 56, 112, and 168 kg  ha − 1 . Nitrogen rates greater than 56 kg  ha − 1 resulted in greater vegetative growth based on increased plant height and number of nodes. These results indicate that populations of 22 plants m − 2 and nitrogen rates of 56 kg  ha − 1 were sufficient for maximum yields in UNR cotton under our conditions. However, at higher nitrogen rates, boll formation increased at lower nodes with no corresponding change in yield. Higher nitrogen rates may promote earliness and distribute yield across more fruiting sites.","PeriodicalId":354672,"journal":{"name":"Srx Agriculture","volume":"1993 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128632220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
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