Calculation of the application of plant protection products

The calculation of the application of crop protection products is a subject that must always be dealt with in detail. Applying pesticides is a critical moment in the maintenance of a field. The product label details in detail the ingredients it contains. Products are normally divided into two parts, the active ingredient and other inert ingredients. Their concentration is given per % for dry matter or per kg per litre for liquid formulations.

Inert ingredients are chemicals that have no effect on the target, but can help with other functions such as surfactants or colloidants.

Application rates are also detailed on the product label. These doses are expressed in kg of active material per 100 square metres or per hectare.

• Practical example

Liquid application: You have a 25 litre bucket. You want to apply a dose of 2 kg per hectare. The product has a concentration of 0.5 kg of active material per litre.

How many hectares can be applied with one bucket?

• Practical example 2

The pesticide has an active ingredient concentration of 80%. The recommended dose is 2 kg per hectare.

How much pesticide should be put in the vat to treat 2ha (?see sprayer calibration)

Each Kilo of product has 0,8Kg of active material.

The dose between the Kg of active material per Kilo of product gives us the amount of product per hectare. 2/0,8=2,5Kg per hectare.

2,5Kg per 2ha=5Kg of product

These practical examples are very useful for day-to-day field work, but if you need any other help to keep the field at 100% please contact us at info@tiloom.com.