Increased potato crop in agricultural enterprises means including an intense struggle with weeds.Weeds are much more unpretentious to growth factors than crop plants, so the potatoes without human assistance will always lose their fight for space, nutrients, water and light.
However, serious interference in the harvest, reducing trade and seed potato tubers quality for farmers in trouble does not end there.Many of the weeds form a kind of incubator where feel at ease pests and pathogens of various plant diseases.And that clogged potato planting poorly ventilated, greatly increases the danger of defeat the scourge of the Solanaceae - blight.Therefore, where it is not being processed potato herbicides, its losses may reach three-quarters of the planned harvest.
Opponents of the use of chemicals as an argument cites the fact that potatoes - a tilled crop, and hence against the weed can be used repeatedly intensive machining.However, its downside - risk of permanent damage to the tops of potatoes and root system, the transfer of a viral infection, draining soil.
From this it follows that the best way to weed control - herbicides for potatoes is, incongruous with tillage machines.
dose of herbicides used depends on the mechanical composition of the soil, and humus content in it.Heavy soil associates of the drugs, so their dosage approaching the maximum allowed.In the very light soils is recommended to bring a dose, a quarter less than optimal.
feature of perennial weeds is that with the onset of autumn nutrients they move from the leaves to the root system.Consequently, they become more susceptible to herbicides which penetrate into the plant tissue through the stomata.
herbicides for potatoes introduced at a temperature of 15 ... +25 degrees.The effectiveness of drugs reduce the lower temperature, or dropped after 4-8 hours after treatment of rainfall.After 2-3 weeks after spraying there is complete destruction of weeds.
When applying herbicides is necessary to:
- tubers were planted in the ridges on the optimum depth to soil preparations have not reached the zone of potato sprouts;
- ridges well settled;
- the soil was loose, lumpy structure and was wet to herbicides evenly distributed and effectively "earned".
The use of herbicides in potatoes is not recommended if the tubers finely planted, suffered from frost, disease, pests, and if these potato varieties show a high sensitivity to the herbicide, in response to their delay in growth and development, abnormalities in sheet unit and tubers.
herbicides for potatoes mainly apply to planted areas using sprayers mounted on the ground or on the aircraft trailers agricultural aviation.Most of these drugs belong to medium- and low-toxic chemicals, but when working with herbicides is necessary to comply with the same safety regulations as well as when working with pesticides.
In conclusion, it should be emphasized that the herbicides for potatoes are chemically suppress weeds, the use of which is justified in the case if other methods did not reduce the contamination of crops to a safe level.
