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采用石灰和腐植酸钾对新平整烟田进行土壤改良田间试验,研究了2种改良剂与化肥配施对烤烟养分吸收、产量、品质等方面的影响。结果表明:化肥可显著提高土壤速效养分,保证烤烟正常生长;石灰明显改善土壤p H,提高烤烟产量;腐殖酸钾显著提高土壤有机质,提升烤烟品质。化肥、石灰、腐殖酸钾配施可以有效缓解土壤酸害,提高土壤有机质和速效养分含量,促进烤烟的养分吸收、提高上中等烟率和产量、产值,协调烟叶化学成分,增加烟叶香气量,提高烤烟品质。因此,新平整植烟土壤上宜采用化肥配施石灰和腐植酸钾,以初步达到烤烟高产和优质的目的。推荐配施石灰和腐植酸钾的施用量分别为2250、800 kg/hm2。
The lime soil and potassium humate were used to carry out soil improvement experiments in new flattened tobacco fields. The effects of two amendments and fertilizer on the nutrient absorption, yield and quality of flue-cured tobacco were studied. The results showed that: chemical fertilizers can significantly improve soil available nutrients, to ensure the normal growth of flue-cured tobacco; lime significantly improve p H and improve the yield of flue-cured tobacco; potassium humate significantly increased soil organic matter and improve the quality of flue-cured tobacco. Fertilizer, lime and potassium humate can effectively alleviate soil acid damage, increase soil organic matter and available nutrient content, promote nutrient absorption of flue-cured tobacco, increase upper middle-grade tobacco yield, output and output value, harmonize the chemical composition of tobacco leaves and increase the aroma of tobacco leaves , Improve the quality of flue-cured tobacco Therefore, the new flattened tobacco planting soil should be used fertilizer lime and potassium humate, in order to achieve the initial high yield and high quality flue-cured tobacco purposes. Recommended lime and potassium humate levels are 2250,800 kg / hm2.