深烤烟对施钾量和施钾方式的响应

中国烟草科学 Pub Date : 2016-08-24 DOI:10.3381/16-051

M. Richmond, R. Pearce, W. Bailey

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引用次数: 2

摘要

2012年、2013年和2014年在美国肯塔基州Murray附近进行了田间试验，评价了暗烤烟对钾肥用量和施用方式的响应。根据土壤试验钾值，每年以0%、50%、100%和150%的推荐施钾量分别施用硫酸钾(0 ~ 0 ~ 50)4种施钾率。所有钾肥处理均在移栽前1天手动撒播施用，或在移栽后7天手动带状施用。根据2012-13年试验地点的土壤测试，建议钾肥的施用量高于2014年的地点。施钾量和施钾方式对各年份的产量组成部分(耳、叶、次)均无显著影响;然而，总产量在2012-13年出现了反应。在2012 - 2013年100%推荐施用量范围内，撒播(3367公斤/公顷)钾肥的产量显著高于带状施用(3001公斤/公顷)。

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DARK FIRE-CURED TOBACCO RESPONSE TO POTASSIUM RATE AND APPLICATION METHOD

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 ...

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来源期刊

中国烟草科学烟草

自引率

0.00%

发文量

3722

期刊介绍： Chinese Tobacco Science is an academic scientific journal (bimonthly) under the supervision of the Ministry of Agriculture and Rural Affairs of the People's Republic of China, and sponsored by the Tobacco Research Institute of the Chinese Academy of Agricultural Sciences and the Qingzhou Tobacco Research Institute of China National Tobacco Corporation. It was founded in 1979 and is publicly distributed nationwide. The journal mainly publishes academic papers on scientific research results, new production technologies, and modern management in my country's tobacco science research and tobacco production technology. In addition, it also publishes forward-looking review articles in the field of tobacco research. There are columns such as tobacco genetics and breeding, cultivation technology, modulation and processing, physiology and biochemistry, plant protection, review or monograph, quality chemistry, etc.