Root cause of vegetables and its solution

Vegetable rot, especially in the nursery period has a lot of rot, affecting the normal growth of seedlings, rot root causes are: (1) temperature, low ground temperature; (2) lack of light; (3) humidity in the nursery bed The large (4) seedbed is not easy to ventilate and ventilate, resulting in weak growth of the seedlings, and it is easy to cause rot. The general symptoms are rust-colored rotting in the roots. The seedlings grow slowly after emergence without new roots, and some even stop growing. The leaves are gray-green and gradually turn yellow, causing the wilting of the whole plant to die. The general solution is:

The application of organic fertilizers to decompose organic fertilizers, especially hot farmhouse fertilizers, can not only improve the disease resistance of seedlings, but also increase the soil temperature of the seedbeds and reduce the incidence rate. Before nursery, in the seedbed, the finely crushed hot manure and bed soil are mixed at a ratio of 5:1 as the nursery soil. The nitrogen fertilizer is used as the base fertilizer in the seedbed as little as possible. Note: The organic fertilizer should be fully decomposed, and it is best to use a special fermentation agent (such as a goldfish starter) to avoid “burning seedlings” and a large loss of nutrients.

When controlling the amount of watering in greenhouses or greenhouses and other nurseries, generally the seedbed is not obviously drought (the topsoil does not scatter the group) when it is not watered; when the drought is obvious, the amount of watering should not be too large.

Pay attention to ventilation After the cotyledon is unfolded, select clear and warm weather to open the cover for ventilation, and evenly spread a layer of fine dry soil to the seedbed, and then cover the cover tightly. This will not only reduce the humidity of the bed soil, but also increase the temperature. effect.

The application of rooting agents using functional microbes and related products to improve the microecological environment of seedling roots can promote early germination of seeds, increase soil temperature, and promote weak seedlings into strong seedlings. Better rooting and strengthening agents can simultaneously achieve the dual effects of “prevention” and “treatment”, such as the rooting of Jinbao. The method of use is as follows: 1. Seedlings: seedlings or nursery seedlings can be used. Take 50ml of this product and dilute 10~20 times. Mix it evenly in 50kg nutritious soil or 4~5 square meters seedbed. It can promote rapid germination, consistent emergence, and no weak seedlings. 2. Seedling stage: In the seedling stage (after 2 leaves and 1 heart), the seedbed per square meter is watered or sprayed with 30 to 10 kg of the 30-fold dilution of the product. Can significantly promote the main root elongation, bold, more lateral root. Enhances root vigor and absorption intensity, solves rot and forms strong seedlings.

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