Soil Nutrient Situation of Eucalypt Plantation and Fertilization Research

Forest soils of eucalypt plantation were low in nitrogen,phosphorus and potassium levels in South China,furthermore the soil were low level fertility,poor water conservation,strong eluviation,shortage in trace elements like copper,zinc and boron,the shortage in boron was the most impressible for the growth of eucalypts.The eucalypt base fertilizer should be made up of organic and inorganic fertilizer,but was not the more fertilizer the better,it must had a scientific mixture of many components.However,NPK proportion of additional fertilizer was reasonable,it could have a good effect in yield.According to soil fertility level of land and the current plantation management level it was necessary to supply plenty of fertilizer to improve the growth of eucalypt plantations.The effect of fertilization could lead to increase wood fibre length a little and increase fiber width obviously,not to reduce but slightly increase the wood basic density,but not significant.