Effects of different sulfur application rates and sulfur nutrient levels on the quality of tobacco leaves in soil
To study the effects of different sulfur fertilizer application rates and sulfur nutrient levels on the quality of tobacco leaves in soil,sulfur fertilizers of 0,30,60,and 90 kg/hm2 were applied to soils with sulfur content＞25,10-20,and＜10 mg/kg,respectively.The differences in tobacco leaf quality among different treatments were analyzed and compared,including appearance quality,sulfate ion content,and sensory quality.The results indicated that excessive sulfur application was not conducive to the appearance and sensory quality of tobacco leaves,and may lead to a higher sulfate ion content in the finished cigarette tobacco.In order to balance appearance quality,chemical composition,and sensory quality,the sulfur application rate should not exceed 60 kg/hm2.If the sulfur nutrient level of tobacco planting soil exceeded 25 mg/kg,the sulfur application rate should not exceed 30 kg/hm2.The study could provide reference for tobacco production areas and cigarette industry enterprises to apply sulfur fertilizer reasonably and effectively control the sulfur content of tobacco leaves.
万方数据
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