Effect of Amino Acid Fertilizer on Flue-cured Tobacco Fertilizer Reducing and Efficiency Increasing

In view of the protection of arable land, it can achieve the goal of the sustainable development of flue-cured tobacco production through the reasonable allocation of the active organic fertilizers rich in organic matters, humic acids and amino acids with mineral nutrient fertilizers by supplementing the organic nutrients in the soil planted tobacco by the means of fertilization, which can improve the soil comprehensive fertility, promote the balanced absorption of tobacco on the mineral nutrients, improve the tobacco plant nutrition and soil physicochemical properties, enhance tobacco qualityand utilization rate of fertilizer, increase fertilizer efficiency121. [...]the coordination of chemical components in the lower leaves of treatment " was the best, followed by treatment ", and poorest in CD. [...]the coordination of chemical components in the middle leaves of treatment " was the best, followed by treatment", and poorest in CD. Upper leaves As shown in Table 7, the content of total sugar the upper leaves of all treatment was in the order form high to low of treatment ", treatment #, CK, and the content reducing sugar from high to low was in the order of treatment #, treatment ", CKD There was no significant difference in plant nicotine, total nitrogen, potassium ion and chloridion contents among all the treatmentsD All treatments had proper sugar/nicotine ratio and nitrogen/nicotine ratio, which were all within the range of quality tobacco leaves, and the disaccharide difference of treatment # was the smallestD On the whole, all treatment had good coordination of chemical components in the upper leaves, and treatment # was the bestD Effect of amino acid fertilizer on the sensory quality of tobacco leaves The sensory evaluation of middle leaves showed that CK had slightly sufficient quantity, obvious offensive odor, thick concentration, slightly irritated, lightly spicy and obscure aftertaste, lightly sweet secreted salivaD Treatment " had good permeability, slightly sufficient quantity, obvious offensive odor, thick concentration, small irritation, lightly spicy and obscure aftertaste, lightly sweet secreted salivaD Treatment # had slightly sufficient quantity, lightly offensive odor, thick concentration, small irritation, lightly spicy and obscure aftertaste. Summary The test results showed that the application of amino acid fertilizer had little influence on the growth period of flue-cured tobacco, and the treatments applied amino acid fertilizer ha