生物菌肥配施对林木资源生长指标及林地土壤状况的影响  

Effects of Combined Application of Biological Fertilizer on Growth Index of Forest Resources and Soil Condition of Forest Land

作　　者：马海港 MA Haigang(Ningxia Jinsha Forest Farm,Yinchuan 750004,China)

机构地区：[1]宁夏金沙林场,银川750004

出　　处：《林业科技情报》2024年第4期36-38,共3页Forestry Science and Technology Information

摘　　要：分析生物菌肥配施对林木资源生长指标及林地土壤的影响,旨在探究生物菌肥对林木生长的影响。本研究在宁夏某林木种植基地开展试验,依据生物菌肥配施差异分为五个处理,分别施加不同剂量氮肥、磷肥、钾肥、有机肥和生物菌肥,找出最佳生物菌肥的配施方案。结果证实,不同剂量生物菌肥配施可促进林木生长,其中T2处理的树高、地径和冠幅优势明显;林木成活率成活率呈T2>T1>T3>T4>CK的趋势,病害率呈T2>T1>T4>T3>CK的趋势;T2处理的有机质、速效氮、速效磷、速效钾均比较高;T2处理的土壤含水量、毛管孔隙度高于其他处理,非毛管孔隙度低于其他处理。由此可知,生物菌肥配施对林木资源生长指标和林地土壤状况产生不同程度的影响,其中T2处理生物菌肥(150 g/株)配施N(250 g/株)、P(500 g/株)、K(50 g/株)、有机肥(500 g/株)的配施效果最明显,促进林木生长,改善土壤物理指标,提高土壤养分指标。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,phosphate 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.

关 键 词：生物菌肥 配施 林木资源 生长指标 土壤状况 

分 类 号：S792[农业科学—林木遗传育种]