This approach is incorrect: this is because the main purpose of dampness is to kill eggs, germs and residual root nematodes in the soil cultivation layer as much as possible, so how to increase the ground temperature by increasing the light intensity in the shed It becomes the top priority. Obviously, the air outlet is closed immediately after flooding, and the soil moisture is too high. At the critical stage of raising the temperature of the shed, the water vapor generated in the shed is like thick smoke covering the shed, and more condensation of the shed film , So that it is difficult for strong light to shine directly on the ground, it is naturally difficult to increase the ground temperature to achieve the purpose of dampness, so dampness is not the better. Therefore, vegetable farmers should not go to extremes when they are stuffy sheds. It is not that the wetter the better. The correct method should be: about 3 days after flooding, when the soil in the shed sees dry and wet, close the air outlet and then damp it, so the effect will be better. Furthermore, as far as root-knot nematodes are concerned, they are highly adaptable to temperature. 15℃～30℃ is the suitable temperature for growth and reproduction, and the lethal temperature is 55℃. If it is humid, the ground temperature can be raised to 55℃. Obviously Can achieve the best killing effect. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of third parties are involved, please inform this website for handling. phone Cables And Adapters,USB Cable,HDMI Cable,Speaker Cable,Network Cable,Type-C Cable ,Audio&Video Cable Changzhou Satidi Import and Export Co., Ltd. , https://www.guanjiejts.com
Damp greenhouse, not the wetter the better
Dampness is the use of water’s higher thermal conductivity than soil to ensure that the soil cultivation layer reaches a higher temperature. For the dampness, many vegetable farmers went to the extreme, thinking that the wetter the better, so when the shed was flooded with flooding, they immediately closed the air outlet to carry out the stuffiness.