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Chinese Agricultural Science Bulletin ›› 2019, Vol. 35 ›› Issue (10): 30-35.doi: 10.11924/j.issn.1000-6850.casb18010037

Special Issue: 烟草种植与生产

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Drip Fertilization Under Plastic Film Affects Yield and Quality of Flue-cured Tobacco in Panzhihua

  

  • Received:2018-01-08 Revised:2018-03-15 Accepted:2018-03-23 Online:2019-04-03 Published:2019-04-03

Abstract: The study aims at the effect of drip fertilization under plastic film on yield and quality of flue-cured tobacco in Panzhihua, Sichuan Province. A field experiment of random blocks with six kinds of fertilization and three repeats was conducted. The results indicated that compared with conventional fertilization (T1), drip fertilization under plastic film could relieve the drought problem encountered in tobacco production of Panzhihua, and promote the growth and agricultural characteristics of tobacco plant. By adopting drip fertilization under plastic mulch, the cut of N and P fertilizer by 15 and 18 kg/hm2 (T5), respectively, will not cause the decrease of yield and output value. However, the simultaneous cut of N, P and K fertilizer(T4) or the reduction of N and P fertilizer by 23 and 21 kg/hm2(T6) will cause the reduction in yield and output value. By adopting the treatment T2 and T5, the content and ratio of chemical compositions of tobacco leaves are coordinated and closer to the appropriate one of high quality tobacco. Therefore, on the basis of the conventional application rate of fertilizers, the cut of N and P fertilizer by 15 and 18 kg/hm2 is the suitable scheme of drip fertilization under plastic film in Panzhihua.

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