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Cheap Black Succulents Plug Trays For Sale


Most of the materials used to make the plug are styrofoam, polystyrene, polyethylene or polypropylene(72 cell seed trays wholesale). Before selecting a plug, first sample some samples to test their durability. This test is especially important to reuse the plug. High temperatures, glare, and chemicals can cause styrofoam to age, crack, and become brittle(black plastic nursery pots). In addition, the holes in the bottom of the polystyrene plug can be punched out by a puncher or cut with a mold, or fired.(cheap black succulents plug trays for sale)


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However, the size of the holes must be uniform to achieve the best water permeability(seed planting trays wholesale). Most seedling factories tend to punch holes in the punching machine or die cutting. After thorough cleaning or soaking with a disinfectant (such as quaternary ammonium salt) for 15-20 minutes, the tray can be used again. Chlorine or bleach is not recommended for disinfection because some plastics absorb chlorine(plug trays wholesale), which easily reacts with polystyrene to produce toxic substances that affect seed germination and growth.


(cheap black succulents plug trays for sale)If the hardness of the styrofoam plug can withstand high temperatures without melting(18 cell plug trays supplier), steam can be used to sterilize the plug. However, ensure that the trays are completely dry before use. The use of the trays can not exceed two or three times. If the number of uses is too high, the trays will be cracked, the water-permeable holes will expand, and the matrix will leak out from the bottom of the trays(plastic nursery pots wholesale). For vegetables that are susceptible to root disease, new trays should be used. In most cases, using a new tray is more economical than reusing an old tray.


By contrast, it was found that the seedlings in the new plugs grew better(20 cell plug trays supplier). The size of the hole is very particular. The key to decide which hole to use is the size of the hole. The smaller the pores, the more sensitive the seedlings are to changes in humidity, nutrients, oxygen, pH and soluble salts in the matrix. Generally, the deeper the pores, the more air in the matrix(wholesale nursery pots), which is beneficial to water permeability, salt dilution and gas permeability, which is beneficial to the growth of roots and root hairs.


(cheap black succulents plug trays for sale)Some plugs also have venting holes in the middle of the holes so that air can flow between the plants(40 cell plug trays supplier). Its advantages are: make the leaves dry, reduce the disease, dry and balance, and ensure that the plants in the middle part of the tray are tidy. The size of the holes depends mainly on the crops. The main types of vegetables used for industrial seedlings are tomato, spicy (sweet) pepper, grafted cucumber, grafted eggplant, and grafted watermelon(plastic nursery pots). The root system tightly wraps the matrix to form a clump, and there is no dilation when pulled up from the plug.


In general, tomatoes can be selected from small and medium-sized 72-hole trays or 105-hole trays(104 cell plug trays supplier); spicy (sweet) peppers can be selected from 72-well trays, and medium-large 72-hole trays are preferred; for grafting, 50-well trays are preferred. The so-called "cap" of the seedlings is unearthed, which means that the seed coat does not fall off after the seedlings are unearthed, and the cotyledons are sandwiched(plastic nursery pots manufacturers). This phenomenon is called "cap" or "top shell". After the "with cap", the cotyledons could not be deployed smoothly, hindering photosynthesis and causing seedling malnutrition.


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