Study on the Effects of Different Fertilization Rates on the Growth Characteristics of Acacia nigra
The aim of this study is to investigate the effects of different fertilization rates on the growth characteristics of black wood a-cacia.By observing and measuring the plant height,diameter at breast height,proportion of dead shoot plants,and length of dead shoot of Acacia nigra,and using statistical analysis methods,the relationship between fertilization amount and these growth characteris-tics was studied.The experimental results showed that the amount of fertilization had a significant impact on the growth characteristics of black wood acacia.As the amount of fertilization increases,the plant height and diameter at breast height gradually increase,while the proportion of dead shoot plants and the length of dead shoot gradually decrease.In addition,different fertilization rates also had an impact on the nutrient content of black wood acacia leaves.