The secret of all good fertilization is to calibrate well | Cuyo’s diary

LAST GRADE

“The ‘involuntary’ variability should not exceed the ‘voluntary'”, remarked Ricardo Martínez Peck, the specialist in agricultural machinery who, at the request of Pool de Periodistas, trained a select group of the Argentine agrarian press in a program called “Fertilize more and better”.

“If not, any variable fertilization strategy will be conditioned by the degree of accuracy of the applications,” added the professional, continuing with the note of Green Supplement from DIARIO DE CUYO published in our previous edition.

In this regard, he cited that “according to Cunha-Soares, the coefficients of variation registered in the different trials yielded values ​​between 13% and 88% and between 6% and 52%, respectively, depending on the product”, and stated: “For this reason, frequent calibration should be promoted for each type of product.”

He also indicated: “According to Tourn, with a well regulated machine, 1,000 kilos more of corn can be obtained compared to a poorly calibrated fertilizer machine. Pneumatic bar equipment greatly limits the degree of uncertainty that could be caused by the factors mentioned above. Since its acquisition, maintenance and operation costs are higher, “says Martínez Peck.

The local supply of this equipment has grown in recent years, adding to the offers of imported origin that have been used for almost 25 years: “The generalized practice of cultivating services or coverage also increased the demand for this equipment, and therefore The other advantage is that, if working with physical mixtures of different fertilizers or seed mixtures, thanks to the pneumatic rod conduction system, the classic ‘ballistic segregation’ of the systems of saucers “.

For the professional, “as previously considered, the solid fertilizer application technique is strictly related to the physical properties of the products to be used. For this reason it is important to have data that indicates what quality of fertilizer you are working with, since counting with these tools the machines will be able to be calibrated with precision and they will allow to make the applications more efficient “.

“The lower the degree of uncertainty at the time of application, with respect to the products and the calibrations of the machines, the greater the chances of success,” concluded Martínez Peck.