Effects of Different Types of High-Carbon-Based Fertilizers on the Growth and Yield Quality of Jingxi Flue-Cured Tobacco
To explore the effects of different formulations of high-carbon-based fertilizer on the growth and yield quality of tobacco in Jingxi tobacco area,a high-carbon-based organic fertilizer formula suitable for Jingxi tobac-co area is determined.Field test was carried out in Jingxi City,using Yunyan 87 as the material,and four treat-ments were set up:commercial cow manure organic fertilizer(CK),commercial high-carbon based fertilizer(Tl),star anise high-carbon fertilizer(T2)and cow manure high-carbon fertilizer(T3).The effects of different formula-tions of high-carbon based fertilizer on tobacco growth and development and yield quality were studied.Results:In the field experiment in Jingxi City,compared with commercial cow manure organic fertilizer treatment(CK),the plant height of cow manure high-carbon base fertilizer treatment(T3)increased by 5.28％;the leaf blade in-creased by 1.05％;the stem circumference increased by 1.14％,and the leaf length,leaf width and leaf area in-creased by 3.09％,11.23％and 14.67％,respectively.Among the enzyme activity and malondialdehyde content of leaves,the enzyme activity of commercial high-carbon-based fertilizer treatment(T1)was higher than that of T2 and T3 treatment,and the malondialdehyde content of star anise residue high-carbon fertilizer treatment(T2)was the highest.From the perspective of appearance quality evaluation,the total score of each treatment was not much different.High-carbon-based fertilizer helped to improve the appearance quality score of C3F grade post-flue-cured smoke,and the commercial high-carbon-based fertilizer treatment(T1)was relatively good.Compared with commercial cow manure organic fertilizer treatment(CK),the leaf length and leaf width of the upper leaves in-creased by about 2.00cm and 2.70cm,respectively.The stem content rate decreased by 1.40％;the tension resist-ance increased by 0.17N/cm2,and the leaf length and leaf width of the middle leaf increased by 1.50cm and 3.00cm,respectively;the stem rate decreased by 1.70％,and the tension resistance increased by 0.17N/cm2.From the perspective of the chemical composition of post-flue-cured tobacco,compared with commercial cow manure or-ganic fertilizer treatment(CK)B2F and C3F grade post-flue-cured tobacco total sugar treatment(T2),the total sugar of post-cured tobacco increased by 6.75％and 6.99％;reducing sugar increased by 6.60％and 7.29％;po-tassium content increased by 0.13％and 0.04％,and the glyco-base ratio increased by 27.04％and 34.17％,re-spectively.From the perspective of output value,the treatment of star anise slag high-carbon based fertilizer(T2)is the optimal treatment;the mu output reaches 141.88kg/mu;the mu output value reaches 3809.48 yuan/mu;the average price reaches 26.85 yuan/kg,and the proportion of high-quality tobacco reaches 62.87％.Based on the a-nalysis of the growth and development and yield quality of different treatments of tobacco in the field test in Jingxi City,the fertilization method(T2)of high-carbon based fertilizer of star anise residue is more suitable for promotion in Jingxi tobacco area.
high carbon base fertilizertobaccoproduction qualitygrowth and developmentJingxi City
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