Business, Agriculture
"Zenkor Ultra" - instructions for use and feedback
"Zenkor Ultra" is a highly effective herbicide, the main advantages of which are universality and long term. The drug can be used to destroy a very large variety of weeds, dicots or cereals, both before and during emergencies.
What plants destroy
To remove which weeds are mainly used this drug, you can see the table.
Dicotyledonous weeds | Monocot |
Cornflower blue | Bluegrass annual |
Dymyary therapist | Crabgrass blood-red |
White whites | Ezhovnik |
Portulacus garden | Pleval hard |
Amaranth | Bonfire |
Chamomile | Field foxtail |
Oot garden | |
Nightshade |
Not too good this drug is suitable for the destruction of black nightshade, creeping grassgrass, field bindweed, bedstraw and perennial cereals.
Main advantages
The advantages of using the "Zenkor Ultra" means, first of all, that it:
- Can be used to protect against weeds of very many types of crops;
- Often used as a basis for the preparation of tank mixtures in combination with other herbicides;
- Is highly effective in combating problematic weeds;
- Does not have any negative impact on crop plants.
When using Zenkor Ultra from weeds, there is no need to make any special adjustments to the crop rotation.
Operating principle
When treating the soil before emergence, the agent creates a protective film on the surface. In order for the effect of the drug to be effective, then it is necessary to try to avoid this "screen" before germination of the culture.
When treated on shoots, the agent suppresses the transport of electrons participating in photosynthesis, which causes the death of plants. A similar action is exerted by the active substance of the drug - metribuzin (C 8 H 14 N 4 OS). It refers to systemic pesticides. The same substance is a part of many other drugs, designed primarily to combat monocotyledonous and dicotyledonous weeds. The duration of the effect of the action of metribuzin is due primarily to the fact that it is able to penetrate into the plants not only through the roots, but also through the leaves. However, the main effect is through the soil. Therefore, before treatment or after it, it should be well moistened.
It is advisable to ask the weather for a week before using the herbicide "Zenkor Ultra". Small daily rains can significantly improve the effectiveness of the drug. Strong downpours often, on the contrary, reduce the percentage of destroyed weeds. The fact is that in this case the herbicide is simply washed out of the earth.
Period of action of the drug
A noticeable positive effect begins to appear about a week after spraying the "Zenkor Ultra" section. In wet weather, this can happen earlier, in a dry one - later. The term of the protective effect of the remedy is about a month. When a herbicide is used before emergence, weeds that are sensitive to it, as a rule, do not appear at all on the surface.
Possible negative effect
This drug was not noticed any special negative consequences of the use on planting of cultivated plants. When testing with exceeding the recommended dose, only weak manifestations of phytotoxicity in the form of yellowing of leaf tips were observed. In particular, much of this effect was observed on sandy soils.
Contraindications
So, the drug is quite effective - Zenkor Ultra. From the weeds (instructions, testimonials and norms will be discussed in the article below), it is of course worth using. However, in spite of the relative harmlessness of this remedy, it is still not recommended to use it:
- For cereals with a pod of legumes;
- During the germination of crops;
- In the period of frequent recurrent frosts;
- On sandy soils with a humus content of less than 1%;
- On planting sensitive varieties and hybrids;
- In conditions of high temperatures (more than 25 grams).
With caution use this drug should be on planting potatoes of early varieties.
How to apply
So, how to correctly use the drug "Zenkor Ultra" from the weeds? The instruction for using it is very simple. Preliminarily, the soil is leveled, breaking lumps. The drug is diluted with water in the recommended amount. Spray it best with a special tool. It is important to achieve uniformity of application. The drug must permeate the earth at least two centimeters.
When carrying out pre-emergence treatment, the norm of the drug is chosen, taking into account the composition of the soil. For lungs use the minimum recommended dose, for heavy - the maximum. This provides the most effective action of the drug "Zenkor Ultra". Instructions for use, as you can see, describes only a few simple steps, but some rules for the processing of the site still follow. For example, in rainy weather, the amount of the drug should be slightly reduced. The optimal temperature of application is 10-20 g. Treatment for seedlings is best done 4 hours before the rain.
Drug consumption rates
As you can see, it is not so difficult to clean the beds with the help of "Zenkor Ultra" from weeds. The instruction, however, will not be complete without specifying the consumption rates. This herbicide is sold in plastic bottles of 10 and 100 ml each. Large farms purchase it in cans of 1 or 5 liters. The rates of its consumption depend on this particular culture. Below is a table from which you can find out in what quantities the preparation is used for different plants.
Culture | Rate (l / ha) | Method of processing |
Tomatoes | 0.7 | When 2-4 leaflets appear |
Potatoes | 0.75 | At shoot height of 5 cm |
Corn | 0.3-0.5 | In the phase of 3-5 leaves |
Peas | 0.3-0.4 | Before emergence |
Cereals | 0.2-0.3 | In spring - in the tillering phase, in autumn - when 2-4 sheets appear |
Carrot | 0.2-0.3 | Root the size of a pencil |
Asparagus | 0.7-1 | Before emergence |
Of course, in the conditions of the garden, it is difficult to calculate the amount of the preparation, based on its use on large areas. Experienced vacationers are advised to simply apply for processing about 10 grams per hundred square meters on ordinary soils, 5 grams - on light, and 15 grams - on heavy. To prepare a solution per one hundred square meters, 3 liters of water will suffice.
Zenkor Ultra: Reviews
Due to the fact that this drug is relatively safe, does not accumulate in the soil and does not harm cultivated plants, he has earned very good reviews from gardeners. They praise the summer residents not only for its high enough efficiency, but also for the convenience of use. This is a small, easily soluble in water granules. All you need to prepare is to pour the product from the bottle into the bucket and mix thoroughly.
I deserved and for one reason a good drug "Zenkor Ultra" reviews. To his absolute plus is not too high cost. For a bottle of 10 ml will have to pay about 100-130 rubles. Thus, processing a garden area of 6 hectare will cost about 650-800 rubles.
Compatibility tool
It is not recommended to mix the preparation "Zenkor Ultra" with other herbicides in dry form. In the solution it is usually added last. The drug is compatible with most known pesticides. However, when used, the test for the absence of a negative reaction should be carried out nevertheless.
Crop rotation
Next year, after the application of the herbicide, almost any crops can be planted. The active substance of the drug - metribuzin - decomposes in the soil for 1-3 months. However, it is recommended to be careful with plants sensitive to it: onion, cabbage, beetroot, sunflower, pepper and pumpkin.
In arid conditions, there is also some risk of damage to cereals. To reduce it before planting the soil is plowed to a depth of at least 20 cm.
As you can see, the drug "Zenkor Ultra", the instruction for the use of which has been discussed in detail in the article, is quite effective and safe. In addition, and it is very inexpensive. However, to exercise caution in its application, especially with respect to compliance with the consumption rates, it does follow. It is also worth remembering that the active ingredient of the agent, metribuzin, belongs to the third class of danger for humans and to the fourth for bees.
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