摘要
云南省昭通市是典型的山地高原地形地貌,植烟土壤地域分布广泛。为查清昭通市植烟土壤养分丰缺状况,对昭通市8个产烟县(区)采集605个植烟耕层土壤,通过对pH、有机质、大量元素和中微量元素等17项指标含量进行分析化验。结果表明:全市植烟土壤平均pH6.64,有机质2.629%,全氮0.131%,速效氮107.28mg/kg,全磷0.081%,速效磷15.235mg/kg,全钾1.636%,速效钾140.98mg/kg,交换性钙0.381%,交换性镁319.32mg/kg,速效硼0.259mg/kg,速效锌2.479mg/kg,速效锰24.444mg/kg,速效钼0.289mg/kg,速效铁35.453mg/kg,速效铜2.544mg/kg,水溶性氯离子11.783mg/kg。对烤烟生产来说,昭通烟区土壤的磷偏低,钾不足,硼、氯普遍缺乏,初步提出了稳氮、增磷钾,普遍补充硼、氯,局部补充镁、钼、锌的施肥建议。同时,针对不同烟区的土壤养分状况,建议采用不同的烤烟专用复合肥配方。
There is typical terrain of highland in Zhaotong, Yunnan Province. Tobacco growing soils distributed widely. In order to investigate nutrients in tobacco growing soils of Zhaotong, 605 soil samples were collected and analyzed from 8 tobacco growing counties in Zhaotong. By way of analyzing 17 contents of pH, organic matter, large amount of element, middle and microelement, The results showed that the average soil pH value was 6.64, the average contents of organic matter was 2.629%, total N was 0.131%, available N was 107.28 mg/ kg, total P was 0.081%, available P was 15.235 mg/kg, total K was 1.636%, available K was 140.98 mg/kg, exchangeable Ca was 0.381%, exchangeable Mg was 319.32 mg/kg, available B was 0.259 mg/kg, available Zn was 2.479 mg/kg, available Mn was 24.444 mg/kg, available Mo was 0.289 mg/kg, available Fe was 35.453 mg/ kg, available Cu was 2.544 mg/kg, water-solubility chlorine ion was 11.783 mg/kg. Low soil P, insufficiency of K, and deficiency of available B, water-solubility chlorine ion in tobacco growing soils of Zhaotong were main limited factors for flue-cured tobacco production. The fertilization suggestion of controlling N, increasing P and K, complementing B and Cl generally, complementing Mg, Mo and Zn in some areas were recommended. There is suggestion for using different fertilization prescription in different nutrients in tobacco growing soils.
出处
《中国农学通报》
CSCD
北大核心
2010年第7期128-136,共9页
Chinese Agricultural Science Bulletin
基金
云南省自然科学基金项目"昭通植烟土壤养分调查与烤烟平衡施肥技术研究"(2004)
关键词
植烟土壤
养分
施肥
tobacco growing soil
nutrient
fertilization
