在“三松”育苗和其它林木、果树等播种育苗中,常因覆土过厚造成出苗不齐和弱苗,再加上春季播种育苗时遇干旱、风大、高温,导致幼苗发生日灼、立枯病和心止病。为给林木幼苗期造成一个湿润、凉爽的生长环境,从而达到速生丰产、壮苗的目的,多年来,我们采用顶水播种法,收到很好效果。 In the “Songsan” nursery and other trees, fruit trees and other sowing nursery, often due to overburden caused by the emergence of poor and weak seedlings, coupled with the spring planting seedlings in case of drought, wind, high temperature, causing the seedling sunburn, legislation Blight and heart disease. For the forest seedlings to create a moist, cool growing environment, so as to achieve fast-growing, strong seedlings purposes, over the years, we use top-water sowing method, received good results.