摘要
【目的】明确保山市植烟区土壤肥力水平,以提高施肥针对性,为保山市植烟区土壤培肥和烟草种植提供理论依据。【方法】采用模糊数学模型隶属函数法对1465份植烟区土壤样本进行研究,探索土壤养分的时空变异特征,并应用肥力适宜性指数对土壤肥力适宜性进行综合评价。【结果】2015-2019年,保山市5县(市、区)植烟区土壤pH降低,有效硼含量无明显变化,有机质、碱解氮、有效磷、速效钾、有效镁、有效锌、水解性氯含量增加;土壤pH、有效硼含量和水溶性氯含量较适宜,有机质、碱解氮和速效钾含量丰富,有效磷、有效镁和有效锌含量较高;植烟区土壤肥力适宜性指数平均值为0.589,土壤肥力状况良好,各县(市、区)土壤肥力适宜性指数表现为昌宁县>施甸县>龙陵县>隆阳区>腾冲市。【结论】保山市烟区土壤较适宜烟草生长。针对5县(市、区)植烟土壤养分状况与土壤肥力特征,建议合理控制磷肥、镁肥和锌肥的施用量,提高肥料的利用率。
【Objective】The purpose of this article was to clarify the level of soil fertility and improve the targeted fertilization of tobacco-planting area in Baoshan,and provide theoretical basis for soil fertilization and the tobacco planting.【Method】In this study,the membership function method was used to explore the soil nutrient contents in 1465 soil samples collected from 2015 to 2019.The soil fertility suitability was comprehensively evaluated by soil fertility suitability index and the spatial and temporal variations of soil nutrient contents were studied.【Result】The results indicated that soil pH showed a trend of decrease,and available B was relatively stable,while organic matter,hydrolytic N,available P,rapidly available K,available Mg,available Zn and water-soluble Cl increased.Soil pH,available B and water-soluble Cl were at an appropriate level,while organic matter,hydrolytic N,rapidly available K,available P,available Mg and available Zn were high.The integrated fertility index was in better and medium level,the average SFI value was 0.598 and soil fertility was in good condition.The soil fertility suitability index in different areas was Changning>Shidian>Longling>Longyang>Tengchong.【Conclusion】The tobacco-planting soil is suitable for tobacco production in Baoshan.According to the characteristics of tobacco planting soil nutrient status and soil fertility of different areas,it is suggested to control the amount of phosphate fertilizer,magnesium fertilizer and zinc fertilizer rationally to improve the utilization rate of fertilizer.
作者
倪明
濮永瑜
何翔
胡志明
伏成秀
刘芮
张庆
段焰
杨佩文
朱红业
NI Ming;PU Yong-yu;HE Xiang;HU Zhi-ming;FU Cheng-xiu;LIU Rui;ZHANG Qing;DUAN Yan;YANG Pei-wen;ZHU Hong-ye(Agricultural Environment and Resources Institute,Yunnan Academy of Agricultural Sciences,Yunnan Kunming 650205,China;Baoshan Branch of Yunnan Tobacco Company,Yunnan Baoshan 678000,China)
出处
《西南农业学报》
CSCD
北大核心
2020年第10期2303-2309,共7页
Southwest China Journal of Agricultural Sciences
基金
云南省烟草公司科技计划重点项目(2020530000241021)。
关键词
植烟土壤
养分含量
时间变异
适宜性
Tobacco soil
Nutrient content
Spatial-temporal variability
Suitability
作者简介
倪明(1978-),男,贵州威宁人,助理研究员,主要从事烟草栽培与土壤耕地保育技术研究,E-mail:79698126@qq.com;通讯作者:朱红业,研究员,E-mail:hongyezhu@msn.com。
