Effect of Base Fertilizer Applications on Yield and Quality of Butterbur

Ten treatments designed by Random Blocks were used to study the effect of various base fertilizer applications on the yield and quality of butterbur on a medium fertility land.The results showed that (a) With a constant top dressing, the vegetable yield increaded with the increased fertilization within a certain range; (b) Taking economic factors into consideration, the application of ChaoDa Bio-organic Fertilizer at the rate of 2 400 kghm-2 as the base fertilizer produced an optimal result; (c) The contents of soluble sugars, soluble protein and crude fiber increased initially and decreased afterwards with the application of organic and inorganic fertilizers; (d) Application of organic fertilizer reduced, while inorganic fertilizer increased, the nitrate content; and, (e) Application of ChaoDa Bio-organic Fertilizer at the rate of 2 400 kghm-2 as the base fertilizer and AoLaiTe Fertilizer at the rate of 1 200 kghm-2 as the top dressing were found to be optimal for high yield and improved quality of butterbur on land of medium fertility grade.