? With the continuous development of drip irrigation technology, people are scrambling to use drip irrigation technology, but some farmers will have a series of problems in chemical root irrigation. Let me talk about drip irrigation technology and how to do chemical root irrigation.

List:

1. Time for root irrigation with chemicals: We should first pay attention to the time for root irrigation with chemicals. If crops want fewer diseases, we should prevent them in advance, and the same is true for root irrigation with chemicals. Never wait until vegetables have diseases before root irrigation with chemicals. We should do root irrigation when planting seedlings slowly. Chemical root irrigation, like water irrigation, also has certain requirements for the weather. It is necessary to choose a sunny day for several days, and it is better to do root irrigation after 1 am, not to do root irrigation with chemical too early.

2. the concentration and dosage of medicine for root irrigation: first of all, we should pay attention to the concentration of medicine for root irrigation. If the concentration of medicine is small, it will have no effect, while if the concentration of medicine is large, it will hurt the roots of vegetables. Therefore, it is necessary to change the concentration according to the specific situation of vegetables in order to achieve the effect of disease prevention. Secondly, in our actual root irrigation operation, we often use the same dosage uniformly, regardless of the size, according to the dosage of half a catty per plant, which is often incorrect. When vegetables are young, the dosage of half a catty of liquid medicine will not only be wasted, but also cause root damage to vegetables. In fact, when vegetables are young, the dosage of medicine is generally about 2 Liang, which is enough. For grown vegetables, the amount of this half-catty liquid medicine can't infiltrate the main root system of the plant, which can't play a good role. The capillary roots in the deep soil in the fruit tree area, half a catty of liquid medicine can't infiltrate the deep roots at all, so it can't play a bactericidal role. Compared with the main root system, the capillary root is more susceptible to bacterial infection. Without the infiltration protection of liquid medicine, it can not play a bactericidal role. Therefore, it is necessary to reasonably increase the dosage of root irrigation according to the actual dosage, so that the disease prevention effect is better.