[1]马友华,何方,王世济.安徽凤阳烟区烤烟施钾量和施钾方法的研究[J].南京农业大学学报,1998,21(1):72-76.[doi:10.7685/j.issn.1000-2030.1998.01.014]
 Ma Youhua,He Fang,Wang Shiji.The rate and method of potassium application on flue cured tobacco in Fengyang tobacco planting region, Anhui Province[J].Journal of Nanjing Agricultural University,1998,21(1):72-76.[doi:10.7685/j.issn.1000-2030.1998.01.014]
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安徽凤阳烟区烤烟施钾量和施钾方法的研究()
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《南京农业大学学报》[ISSN:1000-2030/CN:32-1148/S]

卷:
21卷
期数:
1998年1期
页码:
72-76
栏目:
出版日期:
1998-02-28

文章信息/Info

Title:
The rate and method of potassium application on flue cured tobacco in Fengyang tobacco planting region, Anhui Province
作者:
马友华何方王世济
安徽农业大学土化系,安徽烟草研究所
Author(s):
Ma Youhua He Fang Wang Shiji
Anhui Agric Univ, Hefei 230036; Anhui Tobacco Institute
关键词:
烤烟 产量 品质 钾肥 施肥量 施肥方法
Keywords:
flue cured tobacco yield quality potassium fertilizer application rate fertilizer application methods
分类号:
S572.062
DOI:
10.7685/j.issn.1000-2030.1998.01.014
文献标志码:
A
摘要:
研究在田间试验条件下进行。结果表明:尽管凤阳烟区土壤具有较高的供钾潜力,但不施钾肥时,烟草植株仍出现明显的缺钾症状。施钾显著增加了烟叶长度、单叶干重、单株烟茎和根的重量,从而显著增加了烟叶产量并提高了烤烟产值。硫酸钾的施用量为486kg/hm2时,烤烟的产量和产值最高,钾肥施用过多则降低烤烟的产量及产值。单层施钾处理的烟草,其单叶干重、单株根重和烤烟产量及产值均高于分层施钾处理的。随着施钾量提高,烟叶中钾含量相应增加,而全氮、烟碱和蛋白质含量相应降低,分层施钾的烟草其钾含量高于单层施钾的
Abstract:
The studies were carried out in field experiments in Fengyang tobacco planting region. The results showed that symptoms of K deficiency appeared in tobacco plants without K fertilization in spite of high soil K supplying potential. Application of K fertilizer increased obviously yield and value of flue cured tobacco with length and dry weight of per leaf, stalk and root of tobacco plant. The highest yield and quality of leaves were obtained at the rate of 486 kg K 2SO 4 per hectare. K application in single layer resulted in higher yield and leaf quality than in separated layers. With increasing K rates, the potassium concentration of leaves increased, while nicotine, total N and protein contents of leaves decreased. The potassium concentration in leaves with application of K in separated layer was higher than that in single layer.

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更新日期/Last Update: 1998-02-28