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小麦花粉幼苗中无根的幼苗,由于无法从土壤中吸取养料,移栽后死亡率很高。几年来,我们采取以下办法,促使无根苗迅速长根。(1) 在营养土里掺沙,比例是马粪:表土:沙土等于1:1:0.5;(2) 先用小刀片在幼苗的基部纵切一两个约0.5厘米长的小口,再栽入盆内;(3) 移栽后将无根苗放在阴暗处。采取这些措施,移栽4—5天之后,大多数无根苗能长出根和心叶,成活率可达62％。为了促进无根苗的成活和生长,我们在移栽第三天以后,开始每天每株浇5次水,每次
Wheat root seedlings without pollen seedlings, due to the inability to draw nutrients from the soil, high mortality after transplanting. In the past few years, we have taken the following measures to promote the rapid growth of rootless seedlings. (1) Stir in the nutrient soil, the ratio is horse manure: topsoil: sand equal to 1: 1: 0.5; (2) first with a small blade in the base of the seedlings longitudinal cut one or two about 0.5 cm long small mouth, Into the basin; (3) after transplanting no root seedlings in the shade. Take these measures, 4-5 days after transplanting, most rootless seedlings can grow roots and heart leaves, the survival rate of up to 62%. In order to promote the survival and growth of non-rooted seedlings, we started to pour water 5 times per plant per day after the third day of transplanting, each time