Effects Of Different Fertilizer Treatments On Growth And Yield Quality Of Nicotiana Tabacum L.Cv.Cuibi 1

As one of the main pillar industries of Sanming City,tobacco production is an important way for farmers to get rid of poverty and increase income.With the change of consumption structure of cigarette market,industrial enterprises put forward higher requirements on the quality of tobacco.Cuibi 1 is a kind of varieties which is not resistant to fertilizer and toast,especially strictly controlling to nitrogen fertilizer usage.Therefore,while improving cultivation techniques,it is especially important to continuously optimize fertilization techniques,improve soils,and promote the improvement of tobacco yield and quality.In this paper,different nitrogen application rates and cake fertilizer dosage,equal amount of nitrogen organic fertilizer,fermented bean cake and rapeseed cake,and different organic nitrogen application rates on the yield and quality of Cuibi 1 were discussed.The results are as follows:(1)Under the same nitrogen application conditions,with the increase of the amount of rapeseed cake,the tobacco plants showed an increasing trend in plant height,stem circumference and maximum waist area.Under the same condition of rapeseed cake dosage,with the increase of nitrogen application,the tobacco plant increased in the height of stem circumference and the maximum loin leaf area.After baking,both the appearance and evaluation quality of economic characters of tobacco leaves were affected by nitrogen application and cake fertilizer at the same time.T6 treatment(nitrogen application of chemical fertilizer 97.5kg /ha and rapeseed cake application of 600 kg/ha)showed the best performance.(2)The application of organic fertilizer in flue-cured tobacco can promote the growth of tobacco plant,and the application of rapeseed cake fertilizer and green organic fertilizer can effectively increase the plant height,stem circumference and number of leaves,and expand the length and width of leaves.Among the treatments with the same amount of organic nitrogen fertilizer(rapeseed cake fertilizer and chicken organic fertilizer),especially the application of rapeseed cake fertilizer to A,namely,inorganic pure nitrogen 105 kg/ha plus organic nitrogen 112.5 kg/ha of rapeseed cake fertilizer(organic nitrogen content 2%)had the best effect,which improved the yield and output value of tobacco leaves most significantly.(3)The application of fermented soybean cake and rapeseed cake fertilizer delayed the growth period of tobacco plants,but the application of organic fertilizer made the tobacco plants more uniform and stronger in the field.After the application of organic fertilizer,the effective leaf number and stem circumference of the tobacco plant decreased,and the disease in the field tended to increase,but the tobacco plant had a better appearance,and the effect of applying inorganic pure nitrogen plus rapeseed cake was better.Otherwise,Cuibi 1 had the best overall performance when the application of pure nitrogen was 105 kg/ha,and the application of organic nitrogen was 10%.In summary,we can conclude that the application of organic fertilizers promotes the agronomic traits,economic traits and smoking quality of Cuibi 1 tobacco in Sanming Mingxi County,and coordinates the internal chemical components of flue-cured tobacco.Among them,rapeseed cake fertilizer is better than fermented soybean cake and chicken organic fertilizer.At the same time,in the combined application scheme of inorganic fertilizer and organic fertilizer,applying 10% organic nitrogen had the best promotion effect on Cuibi 1.