How does lawn planting level the land?

Due to various factors, such as unfixed sowing time, limited natural environment of the garden, meteorological reasons, construction progress and so on, most people can't sow the lawn completely according to the fine sowing specifications, so we summarized a really usable method, taking into account the germination rate and simplifying the sowing process. 1. Level the land according to the planning requirements, arrange drainage and slope protection matrix construction; Secondly, carefully plow the ground to ensure the slope of drainage and watering, or dig drainage pipes.