1. Cold-season turf should be fertilized in the cold seasons of March-April and September-October, when the cold-season grass grows vigorously. Summer is the dormant period of cold-season grass. After fertilization, the roots do not wash their hands, but instead cause a rich environment, which causes fungi to cause pests and diseases.

2. Warm-season turf should be fertilized in the high temperature season from June to August, and the warm season turf growth season is also the period that requires the most nutrients. Newly planted warm-season turf should increase the amount of fertilization, which can make the grass vines develop rapidly in the horizontal direction, and accelerate the closure rate to increase the coverage rate.

3. The lawn entering the curing period can be based on the nutrient color of the lawn during the vigorous growth period, and keep the green color in time. Including different fertilization of different nutrient color plots, so that the lawn landscape color is consistent.