Method for planting and water-fertilizer management of populus tomentosa carr

The invention relates to a method for planting and water-fertilizer management of populus tomentosa carr.. The method includes the steps of afforestation and water-fertilizer management, wherein specific varieties, planting density, and water-fertilizer management are adopted; the water-fertilizer management includes two times of fertilization conducted at the end of April and the end of June respectively, wherein a nitrogen fertilizer and a potassium fertilizer are applied synchronously, 1/3 of the nitrogen and potassium fertilizers is applied at a first time, 2/3 of the nitrogen and potassium fertilizers is applied at a second time, and a phosphorus fertilizer is applied at the two times in equal amounts; a 20-30 cm deep hole is dug on each side of the populus tomentosa carr., the distance of the trunk is determined according to the projection of the canopy, and soil covering and irrigation are conducted immediately after fertilization. In conclusion, by adopting populus tomentosa carr. S86, a field moistur