摘要
为了给攀枝花烟区不同类型植烟土壤的施肥提供技术参考,对不同类型土壤的主要肥力特征进行了调查分析。结果表明,供试6类主要植烟土壤中:(1)61.86%紫色土的pH最适宜烤烟生长,然后依次是黄棕壤、红壤、赤红壤、水稻土和石灰岩土;(2)有机质含量大于15 g/kg的比例以黄棕壤最高(73.4%),其次是水稻土、紫色土、红壤、石灰岩土、赤红壤;(3)碱解氮含量均都大于100 mg/kg,以水稻土的平均含量123 mg/kg最高,赤红壤的平均含量106 mg/kg最低,较低的是平均含量为117 mg/kg的紫色土;(4)有效磷平均含量都在15~20 mg/kg之间,属于中等,但含量变异较大;(5)速效钾平均含量都在100 mg/kg以上,但小于150 mg/kg的比例都超过了50%,即一半土壤缺钾。
In order to provide technical references for fertilization indifferent tobacco cultivation soils in Panzhihua, soil major fertility characteristics were analyzed. The results showed that among the six different tobacco cultivation soils investigated： （1） soil pH value of 61.86% purple soil was suitable for flue-cured tobacco growth, followed by yellow brown soil, red soil, lateritic red soil, paddy soil and limestone soil; （2） the highest proportion of soil organic matter content above 15 g/kg was found in yellow brown soil with 73.4%, followed by paddy soil, purple soil, red soil, limestone soil and lateritic red soil; （3） soil average available nitrogen contents in all tested soils were above 100 mg/kg, the highest amount was detected in the paddy soil with a mean value of 123 mg/kg, while the lowest was in the lateritic red soil with average content of 106 mg/kg, available nitrogen content in purple soil was 117 mg/kg; （4） though all the tested soils were in medium available phosphorus level with an average value ranged from 15 to 20 mg/kg, the variation of soil available phosphorus among different soils was obvious; （5） the average content of soil available potassium was all above 100 mg/kg, but the proportion of soil available potassium less than 150 mg/kg exceed 50% of all the analyzed soil which indicated that half of the tobacco cultivation soils in Panzhihua were potassium deficiency.
出处
《中国农学通报》
2017年第12期58-62,共5页
Chinese Agricultural Science Bulletin
基金
中国烟草总公司四川省公司2013年重点科技项目"烤烟中
微量元素营养失调症诊断及产品开发"(川烟科[2013]4号)
四川省农业科学院2015年院青年基金项目"Mg元素对初烤烟叶中主要化学成分和致香前体物含量的影响"(2015JSCX-027)
关键词
攀枝花
植烟土壤
肥力特征
Panzhihua
tobacco cultivation soil
fertilitycharaeteristics
