摘要
为探明云南师宗烟区植烟土壤养分以及烟叶化学品质指标的含量状况,为其烤烟生产合理布局和科学精准施肥提供依据。采集师宗县7个乡镇地区土壤样品和烟叶样品分别110份,分析其土壤养分和烟叶品质,并进行了评价。结果表明,该地区随海拔升高,土壤pH和有效钙降低,海拔对其他土壤养分和烟叶品质无显著影响。师宗烟区土壤pH整体适宜烟株生长,60%处于最适宜范围;土壤有机质92.7%属于“高”和“极高”范围。大量元素总氮总体含量85.5%属于“高”和“极高”范围,碱解氮含量大部分中等(63.9%),23.1%属“极高”范围,13%含量“低”;全磷和全钾缺乏,处于“低”和“极低”范围,分别占71.8%和90.7%;但速效磷和速效钾占“中等”及以上的比例达98.2%和78.1%。中微量元素整体含量较高,但有效硫和有效钼含量分别有29.6%和25.9%处于“低”和“极低”水平,有效钙和有效镁100%处于“高”及以上水平,有效铜、有效铁、有效锰和水溶性氯含量丰富;烟叶含糖量较高,其他基本符合优质烟叶的标准。该地区应注意钾、硫肥的施用,减少钙和镁投入。
In order to find out the content of soil nutrients and chemical quality indicators of tobacco in the tobacco growing area of Shizong,Yunnan,and to provide a basis for the rational layout and scientific and accurate fertilization of roasted tobacco production.Soil samples and tobacco leaf samples were collected from seven township areas in Shizong County and 110 samples were collected and analysed for soil nutrients and chemical quality of tobacco leaf.This study showed that soil pH and effective calcium decreased with increasing altitude in the area,while altitude had no significant effect on other soil nutrients and tobacco quality.The overall soil pH in the Shizong area is suitable for tobacco plant growth,with 60%in the optimum range;92.7%of the soil organic matter is in the‘high’and‘very high’range.The total nitrogen content of the bulk elements was in the‘high’and‘very high’range for 85.5%of the total,while most of the alkaline nitrogen content was medium(63.9%),23.1%in the‘very high’range and 13%in the‘low’range.Total phosphorus and potassium were deficient in the‘low’and‘very low’ranges,accounting for 71.8%and 90.7%respectively;however,fast-acting phosphorus and fast-acting potassium occupied The proportion of‘medium’and above was 98.2%and 78.1%respectively.The overall content of trace elements is high,but 29.6%of effective sulphur and 25.9%of effective molybdenum are at the‘low’and‘very low’levels respectively,100%of effective calcium and effective magnesium are at the‘high’and above levels,and effective copper,effective iron,effective manganese and water-soluble chlorine are abundant.However,29.6%of effective sulphur and 25.9%of effective molybdenum were at‘low’and‘very low’levels respectively,100%of effective calcium and effective magnesium were at‘high’and above levels,while effective copper,effective iron,effective manganese and water-soluble chlorine were abundant.The region should pay attention to the application of potassium and sulphur fe
作者
黄士航
田丰
张莉
范幸龙
钱建财
韩永亮
王瑞宝
陈利伟
李强
HUANG Shi-hang;TIAN Feng;ZHANG Li(College of Agriculture,Hunan Agricultural University,Changsha,Hunan 410128;Jiangsu China Tobacco Industry Limited Liability Company,Nanjing,Jiangsu 210019)
出处
《安徽农业科学》
CAS
2024年第5期173-180,184,共9页
Journal of Anhui Agricultural Sciences
基金
江苏中烟科技项目“基于江苏中烟品牌需求的湖南烟叶增香提质关键技术研究”(H202226)。
关键词
云南师宗县
烤烟
土壤养分
化学成分
Yunnan Shizong County
Roasted tobacco
Soil nutrients
Chemical composition
