Organic seedling raising substrate

Abstract

The invention provides an organic seeding raising substrate, which comprises the following components in parts by weight: 30-40 parts of peat, 40-50 parts of soil, 3-7 parts of vermiculite, 3-7 parts of perlite and 8-12 parts of earthworm cast. The organic seeding raising substrate has the technical effects that (1) the fertility is lasting, excellent water content and ventilation performance are realized, the unit weight is proper and is generally 0.6-0.9, the substrate has balanced nutrition, the effective nitrogen, phosphorous and potassium contents are greater than 1,000 mg / kg, the organic matter content is greater than 10 percent, factors such as water, fertilizer, air, temperature and the like required by seed germination and seedling growth can be coordinately supplied, the formation of strong rice seedlings is facilitated, the pH (Potential of Hydrogen) is 5.5-7.0, and the acid and alkali buffering performance is good, and (2) the earthworm cast is adopted, the proper using amount is discovered through a large number of experiments, so that the using amount of the peat, i.e., an unrenewable resource, is reduced, and the technical effect of the organic seedling raising substrate is improved. The cultivated strong rice seedling has the advantages of good quality, short growth period and stronger stress resistance; and the capacity is improved by 0.5 times compared with the normal substrate.

Description

technical field [0001] The invention provides an organic seedling-raising substrate, especially the organic composition of the substrate and a preparation method thereof, which belong to the field of agricultural technology. Background technique [0002] With the continuous improvement of the seedling level and requirements, the demand and requirements of the seedling substrate are also increasing. Therefore, in order to adapt to the requirements of the market for the substrate, it is very important to invent a seedling raising substrate with optimized effect. [0003] 1. Inadequacies of traditional seedling substrates [0004] At present, the most commonly used cultivation substrates are mainly inorganic substrates such as vermiculite, perlite and rock wool, and organic substrates such as peat (also known as peat). These substrates can be used alone or mixed in a certain proportion. These substrates are aerated and permeable, providing the benefits of mineral fertilizat...

AI Technical Summary

Problems solved by technology

[0007] At present, some people use vermicompost instead of peat. Such an organic seedling substrate has the following disadvantages: vermicompost contains high nutrients and strong fertility, which may cause seedling burning and cause plant leaves If the face turns yellow, the resistance of the plant will also decrease accordingly, which will reduce the survival rate of the plant after transplanting.

In addition, vermicompost contains high salinity, so it will reduce the germination rate

[0008] Cow dung is also used to replace part of the peat. Such an organic seedling substrate has the following disadvantages: although the cow dung has high organic matter and effective N, P, and K, the cow dung has not been further processed and contains a lot of immature The pathogenic bacteria are not killed, so the seedlings bred in this way will be infected with certain pathogens, and the ability to resist diseases and insect pests will decrease, which is not conducive to the growth after transplanting