Sugar stevia cutting and seedling culture nutrient soil and preparation method thereof

Abstract

The invention discloses sugar stevia cutting and seedling culture nutrient soil and a preparation method thereof. The sugar stevia cutting and seedling culture nutrient soil comprises, by weight, 0.5-1 part of compound beneficial bacteria, 1-2 parts of rooting accelerators, 20-24 parts of compound modified filling soil, 4-6 parts of earthworm cast, 10-14 parts of enriched ore powder, 5-7 parts ofmushroom dregs, 2-4 parts of traditional Chinese medicine additives, 6-8 parts of loosed water retention additives, 4-6 parts of humus, 2-6 parts of compound fertilizers, 1-2 parts of microelements and 6-10 parts of nutrient substances. According to the nutrient soil, the Cutting rooting rate and the survival rate of sugar stevia can be remarkably increased, application of fertilizers and pesticides is omitted in the use process of the soil, the soil is free from harm and odor, good in water retention and air permeability, green, environmentally friendly, high in fertilizer efficiency and balanced in nutrition and sufficiently meets growth requirements of the sugar stevia, a lot of agricultural and industrial wastes are used, non-renewable resources are saved, ecological environments are protected, and low-carbon circulation is achieved. The preparation method of the nutrient soil is simple in process and has high practical values and good application prospect, and raw materials are easily obtained.

Description

technical field [0001] The invention relates to the technical field of stevia planting, in particular to a nutrient soil for stevia cutting and seedling cultivation and a preparation method thereof. Background technique [0002] The roots and shoots of Stevia rebaudiana are hypertrophic, with 50-60 pieces, up to 25 cm long. The stem is erect, the base is lignified, the upper part is soft, densely covered with short hairs, the base of the corolla is light purple or white, and the upper part is white. Achene linear, slightly flattened, brown, with pappus. Flowering period July-September, fruit period September-November [0003] Cutting propagation can be cut from late March to late August, and the survival rate of cutting cuttings before budding is higher. When cutting, select strong branches and side stems that meet the requirements, cut off small sections with a length of 15-20 cm, and insert 1 / 3-1 / 2 of the cuttings into the bed soil, and the spacing between plants and ro...

AI Technical Summary

Problems solved by technology

[0004] At present, the nutrient soil used for the cuttings of osmanthus stevia is mostly a simple substrate composed of traditional sandy soil, garden soil, peat, and perlite. There is no clear standard for substrate parameters. Not only the physical and chemical properties of the substrate are poor, but also lack of nutrients. It has led to the problems of low rooting rate of seedling cuttings, low cutting survival rate and weak growth of cutting seedlings. At the same time, it makes the osmanthus seedlings in cuttings vulnerable to pests and diseases, low survival rate, undeveloped root system after survival of cuttings, and poor seedbed fertility. , slow growth