The invention belongs to the technical field of 
salix integra cultivation, and particularly relates to a 
fertilizer applying method for improving 
salix integra toughness. The method includes the steps: applying 1100-1200kg of 
microorganism organic fertilizers into soil of planting land per mu before 
cutting of 
salix integra; spraying 
nutrient solution 8-10 days after cuttage and 
sprouting of the salix integra, spraying the 
nutrient solution once every 18-20 days, and continuously spraying the 
nutrient solution for three times. The 
microorganism organic fertilizers are applied before cuttage, 
nutrition needed for 
plant growth is provided, growth of salix integra root systems is facilitated, ability of the salix integra root systems absorbing nutrients is improved, salix integra bodies are smooth, diseases and 
insect pests are effectively prevented and treated, 
soil acidification and soil hardening are effectively restrained, continuous updating ability of the salix integra is enhanced, the 
nutrient solution is continuously sprayed after 
sprouting, 
cell activity of salix integra branches is effectively enhanced, branching and 
branch growing ability of the salix integra is enhanced, 
cellulose synthesis is facilitated, the 
toughness of the salix integra is effectively improved, and 
toughness keeping capacity is effectively improved.