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After the wound at the lower end of the cuttings heals, insert them into moist plain sand or into perlite mixed matrix. In order to promote its rapid growth and make it have a strong ability to bear and adapt to the environment, the maintenance and management during the seedling raising period is very important. The rooting seedlings survived in the mixed substrate (1:1:1) containing soil, sand and peat, and the survival rate was as high as 94.2%.



The substrate provides the water and nutrients needed for the firmness, growth and development of vegetable plug seedlings, and ensures the oxygen necessary for the normal respiration of roots. Cationic surfactants, such as amine salt, quaternary ammonium salt and heterocyclic type, are easy to be adsorbed by the negative charge of matrix particles, and the water permeability of matrix can be significantly reduced after drying. The variety selection of broccoli is very important. Autumn varieties must not be sown in spring, otherwise the flower ball is small and the yield is low.



According to the nutrient absorption per plant, the absorption ratio of nitrogen, phosphorus and potassium in heading cabbage seedlings was 1:0.18:1.23. Since the raw stone flower has the characteristics of looseness and permeability, we can't be careless in the selection of flower pots. In addition, some friends may say that my raw stone flowers have been kept in the open air all summer, never shaded, and there is no burning problem.