Effect of application of water-soluble fertilizer on the yield and quality of flue-cured tobacco variety LY1306
The application of water-soluble fertilizer through the integration of water and fertilizer technology was used to promote the leaf development of flue-cured tobacco variety LY1306,coordinate the chemical composition of tobacco leaves,improve the oil content of tobacco leaves and the porosity of leaf structure,and provide a technical basis for the quality improvement of Luoyang flue-cured tobacco variety LY1306.The trial was a randomized block design with a total of four treatments.The results showed that T3 treatment could increase the maximum leaf area of tobacco plants,increase the fresh weight and dry weight of tobacco leaves,increase the total sugar and reducing sugar content in the upper and middle leaves of flue-cured tobacco,and improve the taste of tobacco leaves.The activities of glutamine synthetase(GS)and nitrate reductase(NR)in T1 and T3 treatments were higher,and the physical properties,appearance quality and economic traits of tobacco leaves were improved by T3 treatment,with a yield of 125.42 kg and an output value of 3 462.85 yuan at 667 m2.In general,when the total fertilization rate was the same,when some nitrogen and potassium were applied in the form of water-soluble,the agronomic traits of tobacco plants were significantly improved,the dry matter accumulation was large,the key enzyme activities of nitrogen metabolism were strong,the appearance quality was improved,the content of chemical components was appropriate and the coordination was good,the content of neutral aromatic substances was high,and the economic traits were good.
water-soluble fertilizerLY1306key enzymes for nitrogen metabolismproduct quality
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