How to raise seedlings in plug?

Seedling substrate is produced by professional factory, and the main raw materials are peat and vermiculite. According to the principle of using local materials, there are perlite, humus soil, rice husk smoked charcoal, mushroom residue, reed powder, coconut fiber, fine residue and garden soil.

The special substrate for plug seedling requires good water retention and air permeability. Because the base weight of each plug is very small, it is easy to dry up or lack fertilizer, so generally mixing compost, slow-release fertilizer or culture soil can not only promote the development of roots, but also ensure the nutrients needed for seedling growth and reduce the damage to roots during transplanting. In some areas of our country, fertile loam and high-quality manure with good maturity are mixed at a ratio of 6: 4. In areas with peat soil, peat soil is mixed with loam and manure at a ratio of 4: 3: 3. 20 kg of decomposed manure, 5 kg of NPK compound fertilizer 1.5 kg, 5 kg of plant ash, 80 g of 50% carbendazim wettable powder and 60 g of 80% trichlorfon powder were added to the prepared nutrient soil per cubic meter, mixed evenly and screened as the seedling substrate.