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对凉山不同烟区植烟土壤养分含量进行了综合评价分析,明确了土壤养分含量与土壤有机质和pH值的相关关系。结果表明:(1)凉山烟区土壤有机质含量中等偏丰富;氮含量中等偏低;北部烟区磷含量中等,南部烟区磷含量中等偏低;北部烟区钾含量偏低,南部烟区钾含量中等偏丰富;氯、硼含量偏低;铜、锌、铁、锰含量呈中等偏丰富水平;北部烟区钙含量中等偏低,南部烟区钙含量丰富;北部烟区镁含量中等偏低,南部烟区镁含量中等偏丰富;北部烟区阳离子交换量偏低,南部烟区阳离子交换量中等;北部烟区土壤偏酸性,南部烟区各约有1/3的土壤偏酸性和偏碱性。(2)氯、钙、镁、锰与有机质含量呈负相关关系,其余养分含量与有机质呈正相关关系;钙、镁与土壤pH值呈正相关关系,其余养分含量与土壤pH值呈负相关关系。并针对该烟区植烟土壤养分状况提出施肥建议。
The nutrient contents of tobacco in different tobacco growing areas of Liangshan were comprehensively evaluated and analyzed, and the correlation between soil nutrient content and soil organic matter and pH value was clarified. The results showed that: (1) Soil organic matter content was moderately abundant in Liangshan tobacco field; the nitrogen content was moderately low; the phosphorus content in the north tobacco area was medium, the phosphorus content in the southern tobacco area was moderately low; the potassium content in the north tobacco area was low, Moderately rich in content, low content of chlorine and boron, moderately rich content of copper, zinc, iron and manganese in the northern part of the tobacco area, moderately low calcium content in the northern part of the tobacco area, abundant calcium content in the southern part of the tobacco area, and moderately low magnesium content in the northern part of the tobacco area , And the content of magnesium in the southern tobacco area was moderately rich. The cation exchange capacity in the northern tobacco area was low, and the cation exchange capacity in the southern tobacco area was medium. The soil in the northern tobacco area was acidic and about 1/3 of the soil in the southern tobacco area was acidic and slightly alkaline Sex. (2) There was a negative correlation between chlorine, calcium, magnesium, manganese and organic matter content, and the other nutrient contents had a positive correlation with soil organic matter. There was a positive correlation between calcium and magnesium and soil pH, and the other nutrients were negatively correlated with soil pH. And put forward fertilization suggestion according to the condition of tobacco soil tobacco nutrition.