西南林业大学学报2025，Vol.45Issue(9)：23-30,8.DOI:10.11929/j.swfu.202408037
保水剂与专用肥配施对大花序桉生长和生理生化的影响
Effects of Combined Application of Super Water-absorbent Polymer and Special Fertilizers on the Growth,Physiology and Biochemistry of Eucalyptus cloeziana
摘要
Abstract
Using Eucalyptus cloeziana seedlings as experimental materials,a two-factor randomized block design was employed to assess 4 dosage levels of super water-absorbent polymer and 4 eucalyptus-specific fertil-izer on the seedling growth,physiological traits and biochemical characteristics.The results showed that the main effects of super water-absorbent polymer,special fertilizer dosage and their interactions had highly significant ef-fects on seedling height,diameter growth,leaf nutrient content,leaf nutrient stoichiometric ratios(N/P,N/K),pho-tosynthetic characteristics and antioxidant enzymes activity.The combination of super water-absorbent polymer and fertilizer promoted seedling height,diameter and total biomass,with the highest values observed under the W2M2 treatment,which were 2.23,1.85 and 1.20 times of the control,respectively.Under the W2M3 treatment,leaf total nitrogen and phosphorus contents were the highest,and leaf N/P rations were higher than the control across all treatments.However,K/P ratios were below 3.4,indicating potassium limitation,while N limitation showed a tendency to diminish compared to the control.The combination of super water-absorbent polymer and special fertilizer significantly improved the photosynthetic capacity and antioxidant enzyme activities of seedlings.Affiliation function analysis showed that the seedling growth,physiological and biochemical conditions were op-timal under the W2M2 treatment.In conclusion,the combination of 5 g/plant of super water-absorbent polymer and 100 g/plant of specialized fertilizer is most beneficial for promoting the growth of E.cloeziana seedlings.关键词
大花序桉/保水剂/专用肥/生长/生理/生化Key words
Eucalyptus cloeziana/super water-absorbent polymer/specific fertilizer/growth/physiology/biochemistry分类
农业科技引用本文复制引用
韦思宇,黄勇,左秋玉,杨梅,徐圆圆..保水剂与专用肥配施对大花序桉生长和生理生化的影响[J].西南林业大学学报,2025,45(9):23-30,8.基金项目
广西自然科学基金重点项目(2021GXNSFDA196003)资助. （2021GXNSFDA196003）
