Effects of Bio-organic Fertilizer on Contents of N, P and K in Tobacco Planted Soil and Tobacco Leaves

Precision field tests were taken to study effects of combined application of bio-organic fertilizer with cake fertilizer in enhancing nutrient supply capacity of soil and increasing contents of conventional compositions in flue-cured tobacco leaves.The results indicated that applying bio-organic fertilizer can significantly enhance nutrient supply capacity of soil,while can increase content of K and decrease content of N in tobacco leaves.Therefore,it has significant contribution to improve maturity and quality of tobacco leaves.