Cucumber seedling-raising substrate and preparation method thereof

Abstract

The invention discloses a cucumber seedling-raising substrate and a preparation method thereof. The cucumber seedling-raising substrate comprises a substrate main ingredient and substrate auxiliaries; the volume ratio of the substrate main ingredient to the substrate auxiliaries is (60-70): (30-40). The substrate main ingredient is a thoroughly decomposed material prepared through mixed fermentation of saw dust such as cottonseed mud and word flour such as fruit tree branches, and the auxiliaries include vermiculite and pearlite. The preparation method comprises the following steps: firstly, mixing the cottonseed mud with the saw dust; next, adding zymocyte for fermentation; and after fermentation, adding the auxiliaries and mixing, screening and packaging. The cucumber seedling-raising substrate has the fermented material volume-weight of 0.40-4.5/cm3, the total porosity of 80-90%, the EC of 3.5-4.0ms/cm, the pH of 6.5-7.0, the total available nitrogen phosphorus and potassium content of 4.5-5.0% and the organic matter content of 40-45%. The cucumber seedling-raising substrate does not need to be added with grass carbon, and is loose and air-permeable, capable of retaining water and fertilizer, harmonious in water, fertilizer and air, and capable of promoting seedlings to grow robustly.

Description

Technical field [0001] The invention mainly relates to the field of melon and vegetable planting, in particular to a cucumber seedling raising substrate and a preparation method. Background technique [0002] my country is a large vegetable producer, and more than 60% of vegetables need to be transplanted. Traditional nutrient soil seedlings have the disadvantages of difficulty in obtaining aseptic soil, large amount of labor for preparation, poor permeability of nutrient soil, weak root system, inconvenient transportation, low colonization survival rate, and easy spread of soil-borne diseases; substrate seedling has developed root systems, The advantages of strong seedlings in the seedling stage, high seedling formation rate and colonization survival rate, can shorten the slow seedling period, early maturity, etc., meet the requirements of the development of safety, cost-saving, high-quality, and high-efficiency modern vegetable industry. Therefore, the traditional nutritious so...

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Problems solved by technology

[0005] "Cottonseed mud" is the biogas residue that uses cottonseed hulls as raw materials to produce fibers and is fermented to produce biogas. Grapes and peach trees are widely planted fruit trees, and a large number of discarded branches are produced by pruning in winter and summer every year; these two raw materials have a large amo

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