Crown - Growth regulator for processing onions and potatoes from sprouting during storage, Kyiv region.

Crown MN, RK — Maleic acid hydrazide' for processing onions andpotatoes to prevent germination during storage.

Application of the drug
Object of protection Harmful object Application phase Rate of consumption of the drug Multiplicity of treatments Waiting period before harvest, days

Potato
During 3-7 weeks before desiccation of the stems or before the start of natural withering of the leaves, when the size of at least 80% of the tubers is 25-40 mm
11.0 l/ha
21

Onion
For lying 30-50% of leaves with active green tissues
9.0 l/ha
4

Group ZZR Growth regulators
Brand Certis Belchim Certis Belchim
Active ingredient: Maleic acid hydrazide: 270 g/l
Preparative form: Water-soluble concentrate
Packaging: canisters of 15 liters, the price is for 1 liter. 160

Головні переваги: (//tractor-service.com)
The liquid preparation form makes it possible to easily dose and prepare the working solution;
It is used in the field for crop vegetation;
Under certain conditions, prevents secondarygrowth of potatoes;
Stops the germination of potatoes left after harvesting in the field;
Prevents product weight loss during storage.

Mechanism of action:
After processing potatoes and onions, the drug is absorbed by the leaves and moves through the vascular system into tubers and bulbs, preventing further cell division (affects mitosis). At the same time, plants remain green and continue active growth, because the drug does not affect cell elongation (growth of already formed cells). This allows the plants to gain the necessary mass and not lose the planned yield. Thanks to the use of the drug, when stored in warehouses, the product does not germinate for a long time, it keeps
quality and does not lose weight.

World experience of using Crown MN on the following crops: carrots, tobacco.

Recommendations:
The optimal air temperature for use is up to 25°С.
Avoid use at temperatures above 25°C.
The wind speed during application should not exceed 4 m/s. It is recommended to refrain from use if precipitation is expected within 24 hours.
The product should be applied to healthy plants that are not affected by diseases, insects and do not suffer from stress during drought.
The leaves of the treated plants must be dry.
It is recommended to use under appropriate humidity conditions (early morning or late evening).
Do not process target crops that are grown for seed production.

Recommended consumption rate of working solution
300-600 l/ha.