Welcome to Journal of Agriculture,

Journal of Agriculture ›› 2018, Vol. 8 ›› Issue (12): 40-46.doi: 10.11923/j.issn.2095-4050.cjas17090018

Special Issue: 烟草种植与生产

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Effect of Application of Different Amino Acid Organic Fertilizers on Growth and Development,Yield and Quality of Flue-cured Tobacco

  

  • Received:2017-09-26 Revised:2017-12-08 Accepted:2017-12-25 Online:2018-12-17 Published:2018-12-17

Abstract: The purpose of this experiment is to research the effects of application of different types and dosage of amino acid organic fertilizer combined with chemical fertilizer on the growth and development and yield and quality of the flue-cured tobacco leaves, and provide a reference for the production practice. The field plot experiment was done to investigate the agronomical characteristics, unifornity, root dry weight, value and output, chemical components and mid leaves smoking quality of flue-cured tobacco leaves by applying different types and dosage of amino acid organic fertilizer combined with chemical fertilizer in the contrast of bio-mixed organic fertilizer(control) and amino acid organic fertilizer A 150 kg/hm2 and amino acid organic fertilizer A 300 kg/hm2 and amino acid organic fertilizer B 150 kg/hm2 and amino acid organic fertilizer B 150 kg/hm2. The results indicated that proportion of mid high grade leaves and potassium to chlorine of the mid leaves ratio and content of total sugar of higher leaves and smoking quality of mid leaves were increased in the four amino acid organic fertilizer treatments compared with bio-organic fertilizer treatment, improving fragrance quality and increasing amount of fragrance of mid leaves. The contents of TN in leaves were decreased in the four treatments. High quality leaves containing the suitable ratio of chemical composition could be obtained by the amino acid organic fertilizer A treatment in 300 kg/hm2. The sensory evaluation indicated that the higher flavor quality of mid leaves could be obtained by the treatment. The mid leaves in amino acid organic fertilizer of 300 kg/hm2 treatment had the characteristics of suitable growth and development, increasing yield and quality and tobacco farmers’ income, and good root development. So the amino acid organic fertilizer A treatment in 300 kg/hm2 was the optimum combination in tobacco-growing region of Xiangxi.