The invention relates to a preparation method of a biological
amino acid nutrient solution for a nursery-grown
plant. A formula of the biological
amino acid nutrient solution comprises the following components in percentages by weight: 1.2-2.2% of
glutamic acid, 1-1.9% of
cobalt chloride, 1.3-2.3% of
bacillus subtilis, 0.5-1.5% of a
chamomile extract, 0.9-1.9% of
zinc lactate, 1.1-2.1% of a mulberry fruit extract, 0.2-1% of
monobenzone, 0.8-1.7% of an
acremonium culture, 0.6-1.5% of
menadione dimethylpyrimidinol
bisulfite, 2.9-3.7% of
bacillus lentus, 2.1-3.1% of
manganese carbonate, 2.8-3.7%of a snake
gall extract, 2-3% of
lactobacillus reuteri, 1.8-2.7% of
calcium acetate, 1.9-2.8% of hydroxyl
zinc methhionine complex, 2.3-3.2% of a rhododendron extract, 1.5-2.5% of millet
bran oil, 2.5-3.5% of apple vinegar
powder, 1.3-2.3% of probiotics, 0.5-1.7% of
amino acid and 70.8-51.7% of water. By the biological amino acid
nutrient solution for the nursery-grown
plant, the nursery-grown
plant can be promoted to sprout earlier, germinate and
branch out, flower
bud differentiation,
bud development and strong buds are promoted,
stress resistance such as
cold resistance, drought resistanceand
disease resistance of the nursery-grown plant is improved, the function duration of leaves is prolonged, and the rate of survival of nursery-grown plant type crops is increased.