Effects of Fertilization on Soil Fertility Quality of Eucalyptus Sprouting Plantations
This study investigated the effects of four different fertilization treatments on Eucalyptus second-generation sprouting plantations over a 2-year period. The treatments included applying ordinary Eucalyptus-specific fertilizer (T1),organic fertilizer (T2),organic-inorganic compound fertilizer (T3),and a no-fertilizer control (CK). Principal component analysis and Grey relational analysis were utilized to evaluate the overall soil fertility quality under each treatment based on data from 13 soil chemical property indicators. The objective was to offer recommendations for selecting appropriate fertilizers to enhance the growth of the second generation Eucalyptus sprouting plantations and improve soil fertility in forested areas. The results indicated that fertilization significantly increased the levels of soil pH,organic matter,total nitrogen,total phosphorus,total potassium,available phosphorus,available potassium,available copper,available manganese,available zinc,available iron,available magnesium,and available calcium compared to the control. Soil pH ranged from 4.57 to 4.85 across the treatments. The highest levels of soil organic matter,total phosphorus,available potassium,and available copper,manganese,and zinc were observed with T3. T1 resulted in the highest levels of total nitrogen,total potassium,and available iron,magnesium,and calcium,while T2 had the highest available phosphorus content. The soil fertility quality index was highest for T3 (60.16％),followed by T1 (56.32％),with the ranking as follows:T3>T1>T2>CK. This study concluded that appropriate fertilization could significantly enhance the soil fertility quality of Eucalyptus second-generation sprouting plantations,with the organic-inorganic compound fertilizer showing the most effective improvement.
second generation Eucalyptus sprouting plantationsoil fertility qualitysoil chemical propertyprincipal component analysis
万方数据
维普
