Novel vegetable seedling composite substrate and preparation method thereof

Abstract

The invention discloses a novel vegetable seedling composite substrate and a preparation method thereof. The novel vegetable seedling composite substrate consists of sawdust serving as a main raw material, an organic fertilizer, urea and microelements. The organic fertilizer in the vegetable seedling composite substrate is prepared from chicken manure and fermented pig manure according to a proportion of 1:1; the ratio of the sawdust to the organic fertilizer is 75-80:25-20; quickly available nutrients of N, P and K are added, wherein the addition amount of N is 300mg / kg, the addition amount of P is 500mg / kg and the addition amount of K is 1,500mg / kg; and the microelements are boron, zinc and magnesium, wherein Zn and B are more than or equal to 0.2 percent, the Mg is more than or equal to 9 percent, and the addition amount of the microelements is 800g / ton. The preparation method for the composite substrate comprises the following steps of: (1) mixing and stirring the sawdust, the chicken manure and the fermented pig manure uniformly, and adding water until the water content accounts for 50 to 60 percent; (2) adding 1.0 to 1.5 percent of urea and stirring uniformly; (3) making a pile, covering a thin film, performing wet compost for 7 to 10 days, and spreading to air for 2 days; (4) adding No.1 zymophyte, fermenting for 8 to 10 days, after hyphae are full of the pile, turning the pile, performing wet compost for 10 days, and spreading to air until the water content accounts for 40 percent; (5) adding No.2 zymophyte, and stacking for 7 days; and (6) adding the quickly available nutrients of N, P and K and the microelements, and bagging to obtain the finished product, namely the novel vegetable seedling composite substrate.

Description

technical field [0001] The invention specifically relates to a novel vegetable seedling-raising composite substrate and a preparation method thereof. Background technique [0002] Vegetable industrial seedling cultivation, cultivating strong seedlings is an important link in modern vegetable production, and the quality of seedlings mainly depends on the seedling substrate. [0003] The peat used in conventional substrates is expensive and non-renewable resources, excessive exploitation will destroy the ecological environment of the swamp. Therefore, the use of agricultural wastes with a wide range of sources and low prices as an alternative substrate for peat has attracted attention both at home and abroad. The facility vegetable substrate cultivation technology can effectively solve the problem of soil continuous cropping diseases and salinity in facility cultivation. If we can base ourselves on local resources, use local materials, and use agricultural waste to replace pe...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a new method for preparing a composite substrate for vegetable seedlings, so as to realize the use of agricultural waste to replace peat in view of the problem that the peat used in conventional substrates is expensive, non-renewable, and excessive mining will cause damage to the ecological environment Preparation of synthetic facility vegetable cultivation substrate