How should vegetables be irrigated with pesticides when using drip irrigation?

With the continuous development of drip irrigation technology, everyone began to scramble to use drip irrigation technology, but there are still a series of problems in the pesticide irrigation root, and I will talk about the drip irrigation technology and then how to carry out the pesticide irrigation. <>

First of all, we should pay attention to the time of pesticide root irrigation, if the crop wants less disease, it is necessary to prevent it in advance, and the same is true for pesticide root irrigation, do not wait until the vegetable disease occurs before the pesticide root irrigation, we should be planted when the seedlings are planted and the roots should be irrigated. Irrigating the roots with pesticides is the same as watering, and there are certain requirements for the weather, so you must choose to irrigate the roots when the weather is sunny for several days, and it is better to irrigate the roots after 10 o'clock in the morning, and you can't irrigate the roots too early. <>

2: The concentration and dosage of the pesticide irrigation root: first of all, we should pay attention to the concentration of the pesticide irrigation, if the concentration of the pesticide is small, it will not work, and the concentration of the pesticide will hurt the roots of the vegetable.

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 amount of medicine, regardless of the size of the root irrigation according to the dose of half a catty per plant, this unified amount of medicine is often incorrect. When the vegetable seedlings are small, the amount of half a catty of liquid medicine will not only be very wasteful, but also cause damage to the roots of the vegetables.

For the grown vegetables, the amount of this half catty of liquid medicine can not infiltrate the main root system of the plant, which can not play a good role. The capillary roots in the deep soil of the fruit tree area, half a catty of liquid medicine can not infiltrate the deep root system at all, so it cannot play a role in sterilization. Compared with the main root, capillary roots are more susceptible to bacterial infection, and without the infiltration and protection of the chemical solution, they cannot play a bactericidal role.

Therefore, it is necessary to reasonably increase the dosage of root irrigation, according to the actual amount of medicine, so that the disease prevention effect is better. <>

In recent years, drip irrigation has become more and more common in sheds, and with its watering and fertilization, vegetable farmers feel handy. However, how to use drip irrigation to irrigate vegetables to prevent diseases, many farmers are at a loss. Next, Xiao Wang will introduce to you how to irrigate vegetables when using drip irrigation?

Clause. First, the first is to determine the dosage and concentration of the drug.

Before administering the medicine, calculate the total amount of medication for the whole plant according to the amount of each plant, and then dilute it with water to an appropriate concentration, and then you can use the prepared liquid medicine for drip irrigation. Note that the amount of medicine and the proportion of water must be calculated accurately, and should not be estimated to avoid poor effect or drug damage after irrigation.

Clause. 2. Master the correct medication method.

In general, there is a limit to the amount of liquid medicine that can be used to prepare in a shed. If drip irrigation is carried out only with liquid, it will be difficult for the liquid to soak the root system of the plant after drip irrigation, and it will not achieve the desired effect. The correct way is to drip irrigate the soil around the root system with clean water, and then drip irrigate with the prepared solution, so that the solution can easily reach the deeper layers of the root system.

It is important to note that the concentration of the liquid is affected by the dripping water first, and only then the liquid. Therefore, when preparing the solution, the concentration of the solution should be adjusted upwards, for example, if the original concentration is 1000 times, it should be adjusted upwards to 800 times.

Clause. 3. Pay attention to the time and weather of root irrigation.

Root irrigation and water irrigation, just like water, have certain requirements for the weather. Although the humidity of drip irrigation is relatively less than that of traditional watering sheds, it still needs to be done well to release wind and humidity. Therefore, it is important to choose a sunny day for root irrigation, preferably after 10 a.m.

After that, generally more than one acre of sheds, it is best to be equipped with two or three main water supplies. Because the greenhouse is more than one acre, as the use of the drip irrigation belt becomes longer, the pressure in the drip irrigation will be weakened, and it is easy to irrigate unevenly. Therefore, for sheds over one acre, it is important to use two or three water mains and have each main supply water to the corresponding drip irrigation belt.

This is determined according to the variety of vegetables, and must be used according to the growth of vegetables, pay attention to the ratio of pesticides, and pay attention to the amount of pesticides.

Determine the pesticide and dosage, master the method of medicine, and pay attention to the weather and temperature when irrigating the land, so that we can irrigate the roots with pesticides.

It is necessary to determine the dosage and concentration of the drug. Ma Jinyou said that before the use of medicine, the total amount of medicine used in the whole shed plant should be calculated according to the amount of medicine used in a single plant, and then the agent should be diluted with water to a suitable concentration, and then the prepared liquid medicine can be used for drip irrigation. Note that the dosage of medicine and the proportion of water must be calculated accurately, and it must not be estimated, so as to avoid the occurrence of poor effect or pesticide damage after root irrigation.

It is necessary to master the correct way to use medicine. Ma Jinyou said that under normal circumstances, the amount of liquid medicine prepared by the dosage of a shed is limited. If drip irrigation is carried out only with the medicinal solution, it is difficult for the liquid medicine to soak the root system of the plant after the drip irrigation is completed, and the desired effect will not be achieved.

The correct way is to drip water to soak the soil around the root system of the plant, and then drip the prepared solution so that the liquid can easily reach the deep layers of the root system. It should be noted that if you drip water first and then drip the liquid medicine, the concentration of the liquid medicine will be affected.

Vegetable root irrigation is an effective measure to prevent root diseases, but vegetable farmers must master the correct method, otherwise, not only will they not be able to get the desired effect, but they will also produce ***. Let's take a look at the correct way to do root irrigation with botanicals! The choice of drug should be reasonable:

Choose a fungicide with strong acupuncture and good control effect, and do not blindly use drugs, so as not to delay the timing of prevention and control, and reduce waste as much as possible. The concentration of application should be appropriate. Fungicides should be mixed with amino acids, liquid fertilizers, or hormones to promote root development as much as possible.

The concentration of the liquid drug should not be higher than 1500 times that of the liquid to prevent high concentrations of liquid drug in the soil around the roots of vegetables and cause plant toxicity.

Soil organisms must take into account that the selected fungicide must not disrupt the biological population and ecological balance in the soil after application to the soil. For sheds where chemical fertilizers are used, try not to use fungicides to irrigate the roots to prevent diseases, so as not to kill the beneficial microorganisms in the fertilizer and make the fertilizer lose its fertilizer effect.

If the vegetables are already infected, the roots must be irrigated with fungicides, not thinking about whether the beneficial microorganisms in the bacterial fertilizer will be destroyed or not, so as not to break out with small losses.

It is not advisable to water the root system before irrigation: First of all, because the root disease of vegetables has already occurred, if watered, the bacteria will spread with the running water, causing more dead trees. The second reason is that watering can easily lead to a decrease in soil air permeability, which leads to hypoxia in vegetable roots, which reduces the resistance of plants to adversity, makes pathogens more susceptible to infection, and exacerbates the occurrence of dead trees.

Therefore, watering before rooting is not recommended. It is not advisable to water immediately after root irrigation: Watering immediately after root irrigation will quickly dilute the liquid medicine in the soil, reducing the effect of sterilization and disease prevention.

Therefore, try not to water the roots for a few days after irrigating them with fungicide. If there is a shortage of water, a small amount of water can be poured into the planting furrow, the water surface should be 1 3 of the height of the ridge, and it should not exceed the ridge surface, so as not to dilute the concentration of the chemical solution in the soil.

Timely remediation of phytotoxicity: After irrigating the roots with fungicides, once the vegetables show symptoms of wilting, yellowing and stopping growth, they should be remedied in time to avoid greater losses. Remedy:

One is to water quickly to dilute the concentration of the chemical solution in the soil; The other is to spray and irrigate the root system with Aidoshou or Yunda 120 in time to reduce plant toxicity, promote the root system to rejuvenate as soon as possible, and restore the normal growth of the plant.

Good quality seeds should be chosen, and they should be watered and fertilized in a timely manner, and some pesticides should also be sprayed, and they should also be prescribed the right medicine.

First of all, it is necessary to burn the wax at the base of the root to avoid the liquid medicine from overflowing from the ridge, and secondly, the liquid medicine is divided into skin to do slippery irrigation, and it is best to use a kettle to operate, so that the medicine will not splash everywhere.

At this time, you can choose the way of sprinkler irrigation, and Mori can also set up a prescribed faucet in this peerless place, and then turn it on at the specified time.

First dig two furrows on either side of the rhizome of the plant, then go to water and sprinkle fertilizer on the roots.

You should have the right approach first, but you can also dig a small hole and then plant fertilizer, so you can increase your yield.

When farming, both sprinkler irrigation and drip irrigation have their own different advantages, and specific problems should be analyzed in detail. Let's talk about the specific differences between the two types of watering and their respective advantages.

Enumeration: 1: Sprinkler irrigation is an irrigation method that uses special equipment such as sprinklers to spray water into the air and form water droplets falling to the ground sprinkler irrigation surface and crop surface.

When we use sprinkler irrigation, we can water the roots, stems and leaves of plants and the surrounding environment in a large area, which can quickly complete the watering and reduce the temperature of the ground. Although this method of watering is fast, it will waste water resources, so it cannot be watered for a long time.

2: Drip irrigation is an irrigation method that according to the water demand of crops, and then through the low-pressure pipeline system on the ground and the irrigation system installed on the capillary, and then the water and nutrients needed by the crops are dropped drop by drop, relatively evenly and very slowly. This watering method can be watered intensively, the watering pipe is very small, so it can save agricultural water, and can also be drip irrigation for a relatively long time in the hot summer, and there is no need to worry about the waste of water resources, but also can maintain the moisture of the soil, which is very conducive to the good growth of crops.

Drip irrigation this watering method will not destroy the structure of the soil, the water, fertilizer, gas and heat inside the soil are almost always in good condition suitable for the growth of crops, and the evaporation rate of water and nutrients is relatively slow, the loss of evaporation is also very small, basically will not produce surface runoff, there is almost no leakage in the deep underground layer, it is a more suitable irrigation method to use. However, the cost is relatively high, the initial investment is still more, and the equipment of the dropper is easy to be irradiated by the sun and aged, the service life is relatively low, and the dropper equipment is prone to blockage, and the follow-up maintenance cost is also relatively large.

Irrigation is a very important part of vegetable planting. Traditional irrigation is generally flood irrigation, irrigation water is actually 2-3 times the actual demand of crops, but also will have an impact on the soil environment, such as soil compaction, increased pests and diseases, etc. Drip irrigation is an advanced and efficient water-saving irrigation technology, which accurately delivers water to the roots of vegetables in the form of a small flow rate, and slowly moistens the soil around the vegetable roots, so that the soil around the soil often maintains the appropriate water requirement and optimal nutrient level.

Let's take a look at the role of drip irrigation First of all, drip irrigation can reduce the infiltration and evaporation of water, improve the utilization rate of water, and at the same time fertilize when irrigating, which can improve fertilizer efficiency, save fertilizer and promote high yield.

Secondly, drip irrigation can improve the microecological environment of the soil, without the problems of increasing soil voids and decreasing bulk density caused by flood irrigation, and can reduce soil nutrient loss and groundwater pollution.

Finally, drip irrigation can reduce the humidity of the growing environment of vegetables, enhance the resistance of vegetables, and thus reduce pests and diseases. The drip irrigation of the integration of water and fertilizer can concentrate water and fertilizer, improve the yield of vegetables and improve the quality.

Drip irrigation equipment consists of two parts, one is the first hub such as pumps, filters, etc.; The second is the drip irrigation pipe network system, such as main pipes, main pipes, drip irrigation pipes, etc.

Common vegetable drip irrigation: 1. For species with shallow roots and large leaf area, it is necessary to irrigate frequently, such as cabbage, cucumber, etc.; For deep leaves with large root areas, such as tomatoes, eggplants, etc., it is necessary to ensure that the vegetable furrow is wet and dry alternately; For fruits and vegetables, avoid watering during the flowering period.

2. Seeds need more water during the germination period, so they should be filled with sufficient sowing water; Vegetable roots should be watered less during the growth stage and the soil should be kept moist; Drip irrigation can also be carried out according to the foliar conditions of vegetables, when the leaves are soft at noon, and it is difficult to recover in the evening, indicating a lack of water, such as cucumbers.

3. In terms of time, you should water in the morning or evening, not at noon. <>

To sum up, drip irrigation is the most effective irrigation technology in the process of vegetable planting, which is not only conducive to improving the yield of vegetables, but also achieving the purpose of energy saving, high efficiency and cost reduction. Therefore, it is necessary to scientifically master the drip irrigation technology and irrigate according to the characteristics of vegetables in order to harvest high-yield and high-quality vegetables.

Drip irrigation is a highly efficient and water-saving irrigation model. When planting vegetables, it can be accurately watered, save water resources, and promote crop growth.