Effects of Combined Application of Biological Fertilizer on Growth Index of Forest Resources and Soil Condition of Forest Land
This paper analyzes the effects of biofilm fertilizer on the growth index of forest resources and forest soil in order to explore the effects of biofilm fertilizer on the growth of forest.In this study,experiments were carried out in a forest planting base in Ningxia,and five treatments were divided according to the difference of biofilm fertilizer application.Different doses of nitrogen fertilizer,phos-phate fertilizer,potassium fertilizer,organic fertilizer and biofilm fertilizer were applied respectively to find out the best biofilm fertilizer application scheme.The results showed that different doses of biological fertilizer could promote the growth of trees,and the advantages of T2 treatment were obvious in tree height,ground diameter and crown width.The survival rate of forest trees showed the trend of T2>T1>T3>T4>CK,and the disease rate showed the trend of T2>T1>T4>T3>CK.The organic matter,available nitrogen,available phosphorus and available potassium in T2 treatment were higher.The soil water content and capillary porosity of T2 treatment were higher than those of other treatments,and the non-capillary porosity was lower than those of other treatments.It can be seen that the combined application of biological fertilizer has different degrees of influence on the growth index of forest resources and the soil condition of forest land,among which the combined application of biological fertilizer(150 g/plant)in T2 treatment with N(250 g/plant),P(500 g/plant),K(50 g/plant)and organic fertilizer(500 g/plant)has the most obvious effect,promoting the growth of forest trees.Improve soil physical index,improve soil nutrient index.
万方数据
维普
