Effect of organic fertilizer on soil physicochemical property in tobacco field

The effect of physicochemical property of soil in different growth stages of flue-cured tobacco by using 4 organic matters(maize straw,pig manure,non-decomposted organic fertilizer and decomposted organic fertilizer)in the tobacco field were studied.The results indicated that:(1)the fertility and environment of soil planted flue-cured tobacco were improved to a certain extend by 4 organic matters;(2)The effects of different organic fertilizer on soil physicochemical properties were different.Compared with other organic matters,the effect of decomposted organic fertilizer in improving soil fertility,amending acid soil,enhancing the capacity of the soil nutrient preservation and supply and the soil buffer capacity was better;Maize straw played an important role in improving soil potassium content and controlling soil available nitrogen level;And the effect of pig manure in improving the soil phosphorus content was better than other organic matters.