New soilless seedling raising method of Ligustrum japonicum'Howardii'

Abstract

The invention discloses a new nutrient solution seedling raising method of Ligustrum japonicum'Howardii', which adopts the technical scheme that seedling raising pools are designed to be 1m wide and 0.2m deep, with no limitation on the length (determined according to the field condition), and the interval between the pools is 0.4m; plastic folding frames are arranged in the seedling raising pools to serve as carriers to support the seedlings; and the nutrient solution at the initial stage is ferrous sulfate with the concentration of active substance being less than 0.05%. A proper amount of nitrogen-phosphorus-potassium mixed fertilizer can be added after new roots grow out one month after cutting, and the concentration of total active substance is still no more than 0.05%. The new soilless seedling raising method includes the steps of: before cutting, selecting an annual half lignified branch at length of 10-15cm with 2-5 leaves at the upper part; cutting out one third of each leaf through scissors; soaking the cutting wood in alpha-naphthylacetic acid at concentration of 20mg / L for 20-30 seconds; setting up sunscreen canopy frames outside the seedling raising pools and covering sunshade nets or straw mulch on the sunscreen canopy frames; and obliquely cutting the cutting wood on the plastic folding frames. According to the method disclosed by the invention, the nutrient solution is simple to prepare, wide in source of raw material and low in cost, and the carriers for supporting the seedlings are durable in use and convenient to use. Tests show that the survival rate of the seedlings reaches above 90%, and labor cost and production material cost can be saved by more than 700RMB per 10 thousand seedlings.

Description

technical field [0001] The patent of the present invention relates to a soilless seedling raising technology of Ligustrum jinsen widely used in landscaping. Background technique [0002] Ligustrum japonicum Howardii (Ligustrum japonicum Howardii) alias: Hawati Ligustrum, Ligustrum japonicum genus, is a new product of the Japanese Ligustrum series of colorful leaves. The leaves are leathery, thick, and fleshy; the new leaves are bright yellow in spring, and turn golden yellow in winter, and some new leaves have cloudy light green patches on both sides or one side of the midrib, and the color is bright and pleasing to the eye; the internodes are short and the branches and leaves are dense. The flowers are white and the fruit is purple. The original species are distributed in the west of Kanto, Japan, Honshu, Shikoku, Kyushu and Taiwan of China. On the one hand, Ligustrum jinsen grows vigorously and has strong germination ability; the bottom branches and inner branches are no...

AI Technical Summary

Problems solved by technology

Regarding the seedling raising method of Jinsen Ligustrum, the traditional method is to use nutrient bowl cuttings to raise seedlings. Although the survival rate can reach about 90%, it consumes land resources and labor costs, and the management is complicated, especially when the cuttings are just cut every day. Problems such as water and high transportation costs for seedlings out of the nursery