{"title":"DARK FIRE-CURED TOBACCO RESPONSE TO POTASSIUM RATE AND APPLICATION METHOD","authors":"M. Richmond, R. Pearce, W. Bailey","doi":"10.3381/16-051","DOIUrl":null,"url":null,"abstract":"Field experiments were conducted in 2012, 2013, and 2014 near Murray, KY to evaluate response of dark fire-cured tobacco to potassium rate and application method. Treatments included 4 rates of potassium based on soil test K values with potassium sulfate (0–0–50) at 0%, 50%, 100%, and 150% of the recommended potassium rate in each year. All potassium treatments were either manually broadcast applied and incorporated 1 day prior to transplanting or manually band applied and incorporated 7 days after transplanting. Based on soil tests for the location of the 2012–13 tests, a higher rate of potassium fertilizer was recommended, compared to the 2014 location. Potassium rate and application method did not have a significant effect on yield components (lug, second, and leaf) in any year; however, there was a response in 2012–13 for total yield. Within the 100% recommended rate in 2012–13, broadcast (3,367 kg ha−1) application of potassium resulted in significantly higher yield than banded application (3,001 kg ...","PeriodicalId":10257,"journal":{"name":"中国烟草科学","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2016-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"中国烟草科学","FirstCategoryId":"1091","ListUrlMain":"https://doi.org/10.3381/16-051","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
Field experiments were conducted in 2012, 2013, and 2014 near Murray, KY to evaluate response of dark fire-cured tobacco to potassium rate and application method. Treatments included 4 rates of potassium based on soil test K values with potassium sulfate (0–0–50) at 0%, 50%, 100%, and 150% of the recommended potassium rate in each year. All potassium treatments were either manually broadcast applied and incorporated 1 day prior to transplanting or manually band applied and incorporated 7 days after transplanting. Based on soil tests for the location of the 2012–13 tests, a higher rate of potassium fertilizer was recommended, compared to the 2014 location. Potassium rate and application method did not have a significant effect on yield components (lug, second, and leaf) in any year; however, there was a response in 2012–13 for total yield. Within the 100% recommended rate in 2012–13, broadcast (3,367 kg ha−1) application of potassium resulted in significantly higher yield than banded application (3,001 kg ...