摘要
评价广西贺州市K326植烟区土壤肥力状况,为高产优质烟叶生产提供参考。以贺州市K326烟区为评价单元,以约6.67 hm^(2)为一个采样单元对贺州市主产烟区采集187个土壤样品(富川县140个、钟山县44个、昭平县3个),测定土壤化学肥力指标,对土壤养分丰缺进行评价和适宜性分析。结果表明,贺州市K326烟区土壤养分肥力整体较好,有机质、氮营养供应充足,磷营养处于丰富水平,钾营养处于中等水平,部分区域钾营养供应不足,pH总体处于中等至偏碱水平。植烟土壤钙营养供应过多,部分区域土壤镁供应不足,而硫营养供应较合适。钾钙镁供应平衡性差,钾镁比和钙镁比大于适宜范围的样本占比大,容易导致缼镁。植烟土壤的有效铜、锌、铁、锰4种营养元素供应充足,硼、钼营养元素普遍缺乏。通过土壤养分丰缺评价和适宜性分析,为贺州市K326烟区高产优质烟叶生产的施肥管理提供参考。
The study was carried out to evaluate the soil fertility in tobacco planting areas of K326 varieties in Hezhou City,Guangxi,and provide a reference for the production of high-yield and high-quality tobacco.In this study,6.67 hm^(2) of tobacco was taken as a sampling unit,and soil chemical fertility index was analyzed from 187 soil samples(140 in Fuchuan County,44 in Zhongshan County and 3 in Zhaoping County)which collected from the main tobacco producing areas of Hezhou City.And the abundance and deficiency of soil nutrients were evaluated and the suitability was analyzed.The results showed that the soil nutrient fertility in K326 tobacco area of Hezhou City was good as a whole,the supply of organic matter and nitrogen was sufficient,phosphorus nutrition was at the rich level,potassium nutrition was at the medium level,potassium nutrition was insufficient in some areas,and pH was generally at the neutral to alkaline level.The supply of calcium in tobacco planting soil was too much,the supply of magnesium in some areas was insufficient,and the supply of sulfur was more appropriate.The balance of potassium,calcium and magnesium supply was poor,and the proportion of samples with potassium magnesium ratio and calcium magnesium ratio greater than the appropriate range was large,which was easy to lead to magnesium corrosion.The supply of available copper,zinc,iron and manganese in tobacco planting soil was sufficient,while boron and molybdenum were generally lacking.In conclusion,through the evaluation of soil nutrient abundance and suitability analysis,it provides a reference for fertilization management of high-yield and high-quality tobacco production in K326 tobacco area of Hezhou City.
作者
贾海江
沈方科
罗东福
黄崇峻
范晓苏
首安发
韦建玉
顾明华
石保峰
张纪利
周权能
JIA Hai-jiang;SHEN Fang-ke;LUO Dong-fu(China Tobacco Guangxi Industrial Co.,Ltd.,Nanning,Guangxi 530001;Guangxi University,Nanning,Guangxi 530004;National Experimental Teaching Demonstration Center of Plant Science(Guangxi University),Nanning,Guangxi 530004;Hezhou Company of Guangxi Zhuang Autonomous Region Tobacco Company,Hezhou,Guangxi 542899)
出处
《安徽农业科学》
CAS
2023年第5期159-165,共7页
Journal of Anhui Agricultural Sciences
基金
广西中烟工业有限公司科技项目“广西K326植烟区土壤肥力分析与调控技术研究及应用”。
关键词
贺州植烟区
K326
土壤养分状况
适宜性
调查
Hezhou tobacco planting areas
K326
Soil nutrients
Suitability
Investigation
