一、幼坪的建立 1、草种的选择和配合 华北冷暖区双子叶草种多选择白三叶、红三叶;单子叶草种多选择本特或40％早熟禾+40％高羊茅+20％多年生黑麦草进行混合播种。 2、坪床的准备 ①清理土地上的石头、瓦砾,清除前茬残留植株、杂草等杂物。②每667m~2施厩肥2～3m~3、二铵20kg、尿素10kg、硫酸钾15kg做底肥。③将土地旋耕,疏松土壤10～20cm。④将坪床粗整平后再细整平,做哇。畦的大小依地势而定,一般选择100～200m~2,利于浇灌及管 First, the establishment of young Ping 1, the choice of grass species and in North China warm and cold dicotyledon species more choice of white clover, red clover; monocotyledon species more choice of special or 40% Kentucky bluegrass + 40% tall fescue + 20% perennial ryegrass mixed sowing. 2, Ping bed preparation ① clean up the stones on the land, rubble, remove residual plant before the crop, weeds and other debris. ② every 667m ~ 2 manure 2 ~ 3m ~ 3, diammonium 20kg, urea 10kg, potassium sulfate 15kg to make base fertilizer. ③ The land rotary tillage, loose soil 10 ~ 20cm. ④ flat bed flat after leveling the whole flat, do wow.畦 the size of the situation may be, generally choose 100 ~ 200m ~ 2, which will help water and pipe