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一、抗旱保湿育壮苗技术 1.壮苗标准 壮苗标准为苗高20厘米,绿叶6片,根茎粗6毫米。 2.备好苗床,施足基肥 苗床选择土地疏松肥沃、排灌方便的旱粮地、菜园地、晚稻秧田或荒坡余地,按苗床与大田1:5～6的比例留足苗床。苗床经翻耕后,四周挖好排水沟,沟宽35厘米,沟深25厘米。土块经晒坯、耙细后,开沟作畦,畦宽1.2米,沟宽30厘米,沟深20厘米。每667平方米苗床准备火土灰4立方米,
First, the drought seedling seedling technology 1. Strong seedling standard seedling standard seedling height of 20 cm, green leaves 6, 6 mm thick roots. 2.Prepared seedbed, Shi enough base fertilizer seedbed Select loose and fertile land, irrigation and drainage convenient drought grain, vegetable garden, late rice seedling or wasteland, according to the proportion of seedbed and field 1: 5 ~ 6 leave enough seedbed. Seedbed after plowing, dredging ditches all around, ditch width 35 cm, 25 cm deep groove. Clay block by the sun, harrow thin, open ditch for 畦, 畦 wide 1.2 meters, 30 cm wide groove, groove depth 20 cm. Each 667 square meters of seedbed preparation fire ash 4 cubic meters,