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Cheap Heavy Duty Propagation Trays Wholesale


Vegetable seedling seedlings are the “source” of all the water and mineral nutrients required for vegetable seed germination and seedling growth(50 cell plant trays bulk). However, due to the small development space and poor buffering capacity of the plug seedlings, improper preparation of the substrate will result in rotten seeds and reduced emergence rate. , seedlings lack of nutrition, rotten roots, length, and so on(wholesale nursery pots). Powder and so on.


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The organic components commonly used in production mainly include peat(seed planting trays wholesale), coconut fiber, furfural residue, sugar cane bagasse, edible fungus cultivation waste, biogas residue, straw, wood chips, peanut shell, earthworm manure, puffed chicken manure, cow dung, sludge, earthworm. The organic component mainly provides sufficient organic carbon source for the rhizosphere microorganism of the plug seedling(plastic nursery pots manufacturers), and maintains the proper porosity and root formation of the matrix through the cross-linking property of cellulose, hemicellulose and lignin.


(cheap heavy duty propagation trays wholesale)Therefore, the seedling substrate must have sufficient porosity, nutrients and a suitable pH range to provide a good root environment for the healthy growth of the seedlings(seed starting tray wholesale). When hardwood chips are mixed with grass charcoal, the volume ratio of hardwood chips is about 40%. Vegetable seedlings are mostly made of 3# vermiculite with smaller particles. Perlite is best sieved to remove powder(plastic plant pots wholesale nz). The substrate is fixed and supports vegetable seedlings. 


The organic component must be pulverized and bio-fermented to form a suitable particle size(50 cell seed trays wholesale), and kill the pathogen and reduce the carbon to nitrogen ratio. In general, the organic component accounts for 50% to 70% by volume of the total matrix. Hardwood chips and the like contain toxins which impair the development of seedlings and have poor hydrophilicity. They should be pulverized to a particle size of less than 5 mm(plug trays wholesale), and the components should be wetted before mixing.


(cheap heavy duty propagation trays wholesale)Inorganic components mainly include vermiculite, perlite, calcined soil, river sand and various chemical fertilizers(18 cell plug trays supplier). The pH of the vermiculite becomes alkaline, and the perlite tends to be neutral. Lime is also a common component of matrix mixing, mainly to neutralize the acidity of peat(black plastic nursery pots), and at the same time can add a large amount of calcium and magnesium, so that the best effect from the coarse powder of marble.


The components of the vegetable seedling substrate can be roughly divided into three categories: organic components(72 cell seed trays wholesale), inorganic components and microbial components. Dolomite (CaMg(CO3)2) is mainly composed of calcium carbonate and magnesium carbonate, and the ratio of calcium to magnesium is approximately 1:1. Chemical fertilizers include calcium nitrate, urea, potassium nitrate, potassium chloride, superphosphate, magnesium sulfate(plastic nursery pots wholesale), potassium sulfate, zinc sulfate, ammonium dihydrogen phosphate, borax, and the like.


(cheap heavy duty propagation trays wholesale)Vermiculite, perlite and the like are mainly used to adjust the porosity and water holding capacity of the matrix(20 cell plug trays supplier). The microbial components mainly refer to microbial preparations containing plant growth-promoting bacteria, such as Bacillus subtilis, Bacillus licheniformis, Bacillus cereus, Pseidomonas fluorescens, Trichoderma harzianum, Arbuscular mycorrhiza fungi, AMF and the like(plastic nursery pots). The dosage is usually from 105 to 108 CFU/L per liter of substrate colony.


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