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钾低氯高是皖北烟叶的劣势,皖北属旱作区,农田灌溉主要靠机井地下水,因此有必要摸清机井地下水中钾、氯等离子含量背景,这是环境因子对烟叶品质影响的基础之一。对皖北现烟叶主产区亳州市谯城区的81个代表性机井地下水样的离子含量分析结果表明:1阳离子中Mg2+(平均含量463.7 mg/L)>K+(平均含量1.15 mg/L)>Ca2+(平均含量0.06 mg/L),阴离子中SO42–(平均含量230.5 mg/L)>HCO3–(平均含量52.8 mg/L)>Cl–(平均含量8.9 mg/L);2空间分布上,K+是西北角高,Ca2+和Mg2+是西北和西南高,Cl–是西北高,SO42–是西部和东北高,HCO3–是涡河北高于涡河南;3现主要烟区为机井地下水高Cl–地区,灌溉时要控制适量浇水,杜绝大水漫灌;烟区种植区域调整可考虑向涡河以南的Cl–低地区如大杨和赵桥等乡镇发展。
Potassium low chlorine high is the disadvantage of tobacco leaves in northern Anhui Province, northern Anhui is arid area, farmland irrigation mainly rely on groundwater, it is necessary to find out the groundwater potassium, chlorine plasma background, which is the environmental factors on the quality of tobacco based one. The results of ion content analysis of groundwater samples from 81 representative wells in Bozhou city, Baicheng, which is the main tobacco producing area in northern Anhui Province, showed that the content of Mg2 + (average content 463.7 mg / L)> K + (average content 1.15 mg / L) (Average content of 0.06 mg / L), anion of SO42- (average content of 230.5 mg / L)> HCO3- (average content of 52.8 mg / L)> Cl- K + is northwestern high, Ca2 + and Mg2 + are northwestern and southwestern high, Cl- is northwestern high, SO42- is western and northeastern high, HCO3- is eddy north is higher than eddy south; 3 the main tobacco smoke is groundwater with high Cl- In the area, irrigation should control the amount of watering and prevent flood irrigation. The planting area adjustment in the tobacco area may be considered for development to towns and towns in the Cl-low area south of the Edo River such as Dayang and Zhaoqiao.