The results also showed that there was no organochlorine pesticide residue in major tobacco growing soils in Yun...
2
根据云南烟区土壤钾素含量及分布特点，提出了相应的施肥措施。
The suitable fertilization formula was recommended based on the characteristics of potassium content and distribution of soil in Yunnan tobacco growing areas.
3
当前，云南烟区局部的或间歇性干旱已对烤烟生产造成很大影响。
The production of tobacco is often affected by drought stress in tobacco planting areas of Yunnan province.
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