Vegetable Planter has a request for porosity. When we stop the seedling cultivation, there is a planter, and there is a request for this porosity. Let me explain to you that the vegetable planter has a request for porosity.

　　 1. The porosity of the substrate is the main factor affecting the quality of cucumber seedlings. The air permeability of the substrate affects the emergence rate of cucumber, and the large aeration pores of the substrate are more conducive to the uniform and rapid emergence; the water-holding pores affect the cotyledon area and true leaf area of ​​cucumber seedlings, and the cotyledon area and the cotyledon area of ​​the seedlings cultivated by the substrate with large water-holding pores The true leaf area is larger.

　　2. The characteristics of the substrate affect the growth of seedlings and also affect the physiological indicators such as root vitality, chlorophyll content and photosynthetic rate. The experiment also obtained a regression model of the three physical properties of the substrate's bulk density, aeration pores, and water-holding pores and the strong seedling index. This regression model reached a significant degree. Cucumber seedlings were stopped in early spring in February, and the total porosity reached about 70%, and the water-to-air ratio was in the range of 3 to 4. The selection of seedling substrates mainly considered water-holding pores.

　　3. Bulk density is related to the particle size and total porosity of the seedling substrate. Where the total porosity is small and the ratio is serious, its bulk density is large. The bulk density of the seedling substrate is too large, in addition to the inconvenient operation when raising seedlings, it is also inconvenient to transport as a commercial seedling substrate; if the seedling substrate is too light and lacks bonding ability, the substrate is easy to float and splash when watering, and it is not easy to fix the root system. Use other seedling substrates together to prevent seedlings from falling.

　　 The above is that Vegetable Planting Machine has a request for porosity. If you have any questions you don’t understand, please contact us and we will stop answering for you. Our manufacturers have a complete range of products and affordable prices, and we will stop answering them for you. Farewell everyone to our factory to stop buying!