铜仁市松桃烟区土壤养分分析

Analysis of Soil Nutrient in Songtao Tobacco Area of Tongren City

[目的]研究铜仁市松桃烟区土壤养分状况,为烤烟科学合理施肥提供参考。[方法]对铜仁市松桃县甘龙、盘石、盘信3个主栽烟区土壤取样分析,研究松桃烟区土壤养分状况。[结果]松桃县植烟土壤p H平均值为6.13,全县大部分烟区土壤酸碱度适宜烤烟生长;有机质含量相对欠缺,仅22.58%的土壤有机质含量大于40.00 g/kg;速效氮、速效磷、速效钾和水溶性氯的平均含量分别为70.46、10.55、115.12、15.90 mg/kg。[结论]针对松桃县土壤养分状况,甘龙、盘石大部分烟区应施行"控氮、稳磷、稳钾、补施有机肥",盘信烟区施行"控氮、增磷、增钾、增施有机肥"的施肥措施;同时应根据实际情况,改善土壤酸碱度。

[ Objective] To study soil nutrient status in Songtao tobacco area of Tongren City, in order to provide reference for scientific and reasonable fertilization of tobacco. [ Method] The analysis of soil samples, including three main tobacco areas of Ganlong, Panshi, Panxin, was done, and soil nutrient status in Songtao tobacco area was studied. [ Result] The results showed that pH average of soil planting tobacco was 6.13, and pH value was suitable for growth of flue-cured tobacco for most of planting tobacco soil. Organic matter content was less, and only 22.58 % of soil organic matter content was more than 40.00 g/kg;The average content of available nitrogen, available phosphorus, avail- able potassium and water soluble chloride was 70.46, 10.55, 115.12 and 15.90 mg/kg, respectively. [ Conclusion] For soil nutrient status of Songtao County, it was thought that ＂nitrogen charging, phosphorus stabling, potassium stable and organic fertilizer suppling＂ should be done for most o（ Ganlong and Panshi, ＂nitrogen charging, phosphorus increasing, potassium increasing and organic fertilizer suppling＂ should be done for Panxin. At the same time, soil pH condition should be improved according to the actual situation.