ACTA AGRICULTURAE BOREALI-SINICA ›› 2019, Vol. 34 ›› Issue (4): 183-191. doi: 10.7668/hbnxb.201751264

Special Issue: Tobacco Soil fertilizer

• Resource and Environment·Plant Protection • Previous Articles     Next Articles

Leaf Quality,Nitrogen Uptake and Nitrogen Use Efficiency of Tobacco under Combination of Chemical Nitrogen Fertilizer with Organic Fertilizer

TANG Hong1, ZENG Zhangquan2, ZHANG Yangzhu3, LI Xiangyang1, WANG Jianwei1, LIU Lunpei1, YAN Hongguang1   

  1. 1. School of Life and Health Science, Kaili University, Kaili 556011, China;
    2. Hunan Academy of Forestry, Hengshan Research Station of Forest Ecosystem, Changsha 410004, China;
    3. College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
  • Received:2019-01-30 Published:2019-08-28

Abstract: The aim of this study was to reveal the effects of application rates of chemical nitrogen(N) fertilizer combined with organic fertilizer(rapeseed cake,M)on the quality,N uptake and use efficiency of tobacco Yun yan 87,and to find the best organic and inorganic N application amount of tobacco in Qiandongnan prefecture of Guizhou Province,which could provide the technical reference for reducing the production cost,and increasing the yield and quality of tobacco. Six treatments,i.e. CK1,CK2 and MNiPK(i=0,1,2 or 3)were set in a field plot experiment. The effects of each treatment on the leaf quality,N uptake and use efficiency of tobacco were analyzed. The results showed that,compared with CK2 treatment,total sugar contents in tobacco leaves of MN1PK,MN2PK and MN3PK treatments increased by 8.57%,14.18% and 13.03%,respectively,the reduced-sugar contents increased by 4.67%,9.66% and 8.26%,respectively,the potassium contents increased by 8.34%,19.08% and 17.12%,respectively,while the chlorine content decreased by 0.36%,8.19% and 3.56%,respectively. The ratio of potassium to chloride and the difference between total sugar and reduced-sugar were improved. Compared with CK2 treatment,the stimulation and foreign smoke of tobacco leaves decreased and the fragrance quality and fragrance amount enhanced in combination of chemical N fertilizer with organic fertilizer. The combustibility enhanced,and the lasting smoke was more comfortable and longer. Compared with MN1PK and MN3PK treatments,MN2PK treatment increased the N use efficiency by 2.99,4.54 percentage points,respectively. The chemical N fertilizer combined with organic fertilizer(organic N accounting for 36.00%-45.77%)coordinated the ratio of different chemical component of tobacco leaves,improved the smoking quality,increased N the nitrogen uptake of tobacco plant and enhanced N use efficiency. After comprehensively analyzing the effects of each treatment on chemical component,smoking quality and N use efficiency of tobacco leaves,the best treatment was that the organic N accounted for 45.77%,and the recommended ratio of organic N was 36.00%-45.77% of total N in tobacco land of Qiandongnan prefecture,which was suggested to be extended in the local areas,and could provide a reference for the neighboring areas.

Key words: Tobacco, Chemical N fertilizer, Organic fertilizer, Combined application, Quality, N uptake, Use efficiency

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Cite this article

TANG Hong, ZENG Zhangquan, ZHANG Yangzhu, LI Xiangyang, WANG Jianwei, LIU Lunpei, YAN Hongguang. Leaf Quality,Nitrogen Uptake and Nitrogen Use Efficiency of Tobacco under Combination of Chemical Nitrogen Fertilizer with Organic Fertilizer[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(4): 183-191. doi: 10.7668/hbnxb.201751264.

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