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News>selects the seedling needs to consider the material properties selects the seedling needs to consider the material properties Source：http://www.sgymjzc.comDatetime：2015-03-29 Brief:select nursery need to be considered when certain physical and chemical properties, in order to produce high-quality seedlings and flowers. First take a look at the need to take into account physical properties: nursery selected nursery need to be considered when certain physical and chemical properties, in order to produce high-quality seedlings and flowers. first look at physical properties need to be considered: (1) soil components; (2) the substrate water content (3) matrix porosity; (4) the matrix components. importantly moisture in the seedling, permeability, cation-exchange rates (CEC) and the ability to release water. the matrix of matrix's ability to release water and water-holding capacity is equally important. such as Rockwool's strong ability to absorb water, it releases water fast, so in production must take into account two things: can keep how much water was in the matrix? Losing water, how long does it take time? In General, the materials used by the more detailed, higher water holding properties of substrates. our company not only operate seedling, as well as projects related to seedling price, welcome to visit our total cooperation! 。3