How to get rid of weeds on potatoes using Lazurite or its analogues
To get a rich harvest of potatoes, it is necessary to conduct constant weed control. These plants not only take up nutrients and moisture, but also cause disease, pest infestations, deterioration of the presentation and reduced yields. To protect their beds, farmers use herbicides.
Read about the principle of action, efficiency, rules of use, reviews and analogues of "Lazurit" against weeds on potatoes in our article.
The content of the article
Description, characteristics and features of the drug
The drug "Lazurit" is a universal remedy with a selective type of action on weeds... It is used in the fight against unwanted vegetation in potato and tomato beds.
Every farmer decides to use herbicides takes into account the number of weeds on the site.
The herbicide is used against 50 species of weeds... The most common ones are:
- quinoa;
- ambrosia;
- thymus;
- amaranth;
- pigweed.
Operating principle
The effectiveness of the drug is based on the content of the active substance metribuzin... 1 kg of solution contains 700 g of this substance. This concentration is detrimental to plants and soil, therefore "Lazurit" is diluted.
As soon as the drug enters the weed, it gets inside. The product is well absorbed into the stems and leaves; when watered, it affects the roots. Metribuzin inhibits photosynthesis, interferes with the absorption of moisture, nutrients and oxygen, which causes the weed to die.
The action of the drug begins immediately after its use... The weeds will begin to dry out in a week, and will completely disappear from the site two weeks after treatment.
Benefits
The drug does not accumulate in the plant and soil, therefore, it is considered safe for humans and animals. Also, "Lazurit" does not violate the taste, growth and development of culture, so that the yield does not fall.
Main advantages:
- high permeability into the plant;
- impact on annual and cereal weeds;
- long exposure period;
- ease of preparation and use of the solution;
- effective against 50 different types of plants;
- low cost - about 100 rubles. for 20 g
Manufacturers claim that the drug not only protects against weeds, but also develops potato resistance to a cold snap andlate blight.
How to dilute the product
Depending on the degree of weed growth in the previous season the farmer decides how many times to process the new one.
With a small amount of weeds, it is enough to carry out one procedure - dilute 10 g of "Lazurite" in 3 liters of water. The treatment is carried out by spraying before potato shoots. Consumption of working solution - 3 liters per 100 m².
With the rapid growth of weed rhizomes, you will need to do two procedures. The second treatment is carried out when the sprouts reach a height of 5 cm. A working solution is used - 10 g per 9 l of water. Liquid consumption - 9 liters per 300 m².
Important! When processing other cultures, the concentration of the drug is changed.
Dilution rules:
1/5 of the liquid volume is poured into the spray tank.- Fill in the herbicide.
- Stir the solution thoroughly until the powder is completely dissolved.
- Then add water to the volume specified in the instructions.
Lazurit is always stirred in a large amount of water.
When diluting the solution, take into account:
- plot size;
- soil condition;
- the amount of weeds.
After processing the unused solution is disposed of... The drug in a diluted state quickly loses its properties, so it cannot be stored.
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Instructions for use
Experienced farmers are often proactive in weed control - carry out processing even before weeds emerge. So that the crops do not suffer from the drug, it is important to deepen them.
Optimal temperature conditions for treatment with "Lazurit" - + 17 ... + 24 ° С... Before the procedure, it is important to make sure that no precipitation is expected that day. Rain helps penetrate the soil where it loses its effectiveness. During the dry period, the activity of the active substance of the drug decreases.
First application
Before the first spraying, the soil is loosened and moistened. Then they wait for the soil to settle a little. Processing is carried out in dry, calm weather.
The concentration of the drug per 1 m² of the plot is 1-1.5 kg. If weeds have already appeared, the solution is poured directly under the root of the plant or sprayed from a spray bottle.
The validity period of "Lazurite" depends on weather conditions... In good warm weather, the drug is effective for two months after treatment.
Important! The first treatment is carried out as soon as the air temperature warms up to + 15 ° C.
After the procedure, the clod of earth must not be turned over... Digging the site will lead to the drug getting on the buried potato tubers.
Sprouted weeds treatment
If the first treatment turned out to be ineffective, the herbicide is used as soon as the seedlings reach a height of 5 cm... The concentration of the drug is reduced - 400 g is enough for 1 m².
Potato processing "Lazurit"
For processing potato crops, use the concentration of the solution - 2.5 liters per 1 m². 20 g of "Lazurite" is diluted in 20 liters of water. The maximum concentration of metribuzin should not exceed 0.5%.
Important! The preparation is suitable for all varieties of potatoes, except for early maturing ones.
When early potatoes need processing, use 0.5 kg of Lazurite, for late varieties - 1.5 kg of the drug.
Factors affecting herbicide consumption:
- Soil fertility. In heavy soil, the rate of the drug is maximum, in the lungs - minimum.
- Peat and humus content. If the site is located on peat soil or with a humus content of up to 6%, the treatment is carried out after the appearance of weeds.
- A variety of culture. When processing early varieties of potatoes, the concentration of the herbicide is minimal.
Safety measures during use
The drug acts only on weeds... Vegetables processed with "Lazurit" do not pose a danger to people and animals. To prevent the chemical from damaging the potato tubers, they are deepened by 15-20 cm.
The herbicide was assigned the third hazard class - harm to health can be caused while processing the beds.
Security measures:
- the procedure is not carried out if the wind speed reaches 5 m / s;
- it is forbidden to prepare a working solution in food utensils;
- processing is carried out in protective equipment - mask, glasses, gloves, dressing gown;
- do not eat, drink or smoke while working with the drug;
- after the procedure, you must take a shower, wash your work clothes and wash the spray bottle;
- it is forbidden to stay on the treated area for more than four hours.
The herbicide is low-hazard for pollinating insects... But in order to avoid poisoning of bees, the treatment is recommended to be carried out 2-3 km from the hives. It is forbidden to use the drug on the territory of the water protection fishery zone.
What drugs is compatible with
To save money and increase efficiency, the herbicide is combined with other drugs.... Moreover, Lazurit is not a fertilizer.If there is an imbalance of nutrients in the soil, even in the absence of weeds, the crop will not be plentiful.
Important! When mixing preparations, the solution must be homogeneous.
"Lapis lazuli" combined with insecticides, pesticides, fungicides, nematicides and acaricides.
When should not be used
The drug, despite the wide spectrum of action, do not recommend using:
- on sandy ground;
- if the culture has suffered a disease;
- during sudden changes in temperature;
- during drought;
- for processing early varieties;
- with a small amount of weeds;
- if plants do not react well to herbicides.
What should be the result after applying "Lazurite"
After using the drug, the weeds will begin to dry out in a week., it will take from 14 to 30 days to completely disappear from the site. If the result is not achieved, there may have been a mistake with the herbicide.
Factors to Consider:
- processing time;
- drug concentration;
- dosage for a single or repeated procedure;
- waiting time for the onset of herbicide action;
- security measures;
- weather.
The diluted drug cannot be stored... The solution is used within 24 hours. The shelf life of the sealed herbicide is 5 years.
Analogues of "Lazurit"
Lazurit is not the only herbicide used in weed control.
Similar properties are possessed by:
- "Titus";
- "Herbitox";
- Zenkor;
- "Antisapa";
- "Metrizan";
- "Gardener".
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Reviews about the tool
Gardeners leave mostly positive reviews about Lazurit. They note the availability, effectiveness and safety of the drug.
Marina, Krasnodar: “I used to fight weeds in the traditional way - weeding. After expanding the site I tried Lazurit. A few days after the first spraying, all excess grass dried up. The procedure was repeated when we saw new shoots of weeds. After that, only one potato remained in my beds. Satisfied with the herbicide ".
Dmitry, Novokubansk: “I have large potato fields, so ordinary weeding cannot save the crop. Several years ago I tried Lazurit and was not disappointed. Now I only trust this tool, the herbicide has never spoiled the quality of the crop. The drug destroys weeds well, has a long-lasting effect ".
Gennady, Borovichi: “I use organic technologies on my site, but when the weeds get overwhelmed, I switch to herbicides. The most effective is "Lazurit" - it is low-toxic, inexpensive, applied in minimal doses and does not inhibit potatoes. I begin to process even before the crop sprouts. One procedure is enough for me ".
Conclusion
"Lazurit" is a universal remedy that is effective even against actively growing weeds. It is not only harmless to potatoes, but also makes it more resistant to frost and late blight.
Most farmers speak well of the product: it is effective, affordable and inexpensive. It is used both in the fields and in small areas - the main thing is to correctly calculate the dosage. Lazurit is also combined with other drugs. Complex treatments will protect against diseases and increase the potato yield.