Understand edible mushroom cultivation techniques, soilless cultivation of flowers need to pay attention to what?

The soilless cultivation of flowers mainly focuses on the following two points:

1. Matrix preparation. The main function of soilless culture substrate is to fix flowers and plants in containers. At present, the commonly used soilless culture substrate in China: sand grains with a diameter of less than 3 mm of ⑴. Natural gravel, pumice and volcanic rocks with a diameter greater than 3 mm of ⑵. ⑶ has good buffering property and does not sink in water of mica mineral vermiculite. ⑷ perlite. The effect is better when it is mixed with mudstone and sand. ⑸ has good air permeability and strong water-holding capacity of peat. It can be used as a matrix alone or mixed with slag. In addition, slag, bricks, charcoal, asbestos, sawdust, fern root, bark and so on can be used as substrates. The matrix should be washed and disinfected before use.

2. Preparation of nutrient solution. The various elements and their dosage used in the preparation of nutrient solution for soilless cultivation of flowers should be determined according to the varieties of flowers planted and their different growth periods and regions. In this paper, a formula is introduced: adding 0.22 grams of ammonium phosphate, 1.05 grams of potassium nitrate, 0.16 grams of ammonium sulfate and 0.16 grams of ammonium nitrate, and 0.01 grams of ferrous sulfate in 1 liter of water. Containers for preparing and storing nutrient solutions should be ceramic, enamel, plastic or glassware, not metal containers. Usage: potted flowers are irrigated with nutrient solution once a week during the growing period, and the dosage can be flexibly controlled according to the plant size.