Monday 21 June 2021

Costa Rica Paves the Way for Climate-Smart Agriculture

Pineapple plants take in more fertilizer through the leaves than they do through their small roots

In Costa Rica, using isotopic techniques scientists have found that applying fertilizer on the leaves of pineapple plants is much more efficient than spreading it on the soil.

‘The plants take in more fertilizer through the leaves than they do through their small roots,’ Pérez said. ‘And this practice reduces greenhouse gas emissions.’

José Luis Hernández, from Costa Rica’s Ministerio de Agricultura y Ganadería (MAG) – Ministry of Agriculture and Livestock, said farmers have changed their farm practices since they learned the new tactic. ‘Small, medium and large pineapple producers have learnt their lesson,’ he said. ‘Applying fertilizer through the leaves means more work, but at the same time saves money. This tactic has largely improved crop management.’

- Advertisement -

Soil is a mixture of minerals, organic matter, gases and water. Carbon is a key ingredient of soil and its health, but, in a gaseous form as CO, it is a GHG. Plants capture carbon in the form of carbon dioxide (CO) from the air, transforming it into organic matter and thereby transferring it into soil, which boosts soil productivity and resilience to harsh climate conditions.

The idea of soil capturing and storing atmospheric CO, also known as carbon sequestration, can counterbalance the increase of GHGs. Analysing carbon isotopes allows researchers to evaluate soil quality and sources of carbon sequestered in the soil. By measuring carbon sequestration, they can identify if biochar is enhancing soil fertility and helping reduce COemissions.

Similarly, using fertilizers in defined plots labelled with the nitrogen-15 stable isotope (N) scientists can track the amount of nitrogen taken by plants or lost to the atmosphere as GHG or to surface and groundwater and can determine how effectively the crops are taking up the fertilizer. This helps them optimize fertilizer use on farms.

“Most producers apply more fertilizers and pesticides than pineapples need, and a large part of these are lost to the atmosphere as greenhouse gases or pollute rivers and groundwater,” said Cristina Chinchilla, agronomy scientist at the University of Costa Rica’s Environmental Pollution Research Center (CICA).

- Advertisement -


- Advertisement -

We strive for accuracy in its reports. But if you see something that doesn’t look right, send us an email. The Q reviews and updates its content regularly to ensure it’s accuracy.

Q Costa Rica
Reports by QCR staff

Related Articles

Cynthia Ann Telles named new U.S. Ambassador to Costa Rica

QCOSTARICA - Today, U.S. President Joe Biden announced his nomination of...

Simple to request certification of vaccines against covid-19 applied in Costa Rica and abroad

QCOSTARICA - The Ministry of Health issued a new guideline on...


Today’s Vehicle Restriction June 19: only “ODDS” can circulate

Today, Saturday, June 19, only vehicles with "ODD" ending plates CAN circulate The measure is countrywide and applied between 5:00 am and 9:00 pm, save...

American woman found lifeless in hotel bathroom in Sabana

QCOSTARICA - A sad discovery occurred this Thursday morning in a hotel located in La Sabana, in San José, the lifeless body of a...

Companies covered up defective asphalt

QCOSTARICA - The judicial file of the Cochinilla Case, on alleged corruption in road works, exposes how three companies would have covered up the...

“Caso Cochinilla”: Name arose when comparing parasite with hidden corruption

QCOSTARICA - On Monday, the Organismo de Investigacion Judicial (OIJ) moved to the raid, seize and arrest of their investigation into corruption of public...

Today’s Vehicle Restriction June 17: 7 & 8 CANNOT circulate

Today, Thursday, June 17, vehicles with plates ending 7 & 8 CANNOT circulate The measure is countrywide and applied between 5:00 am and 9:00 pm,...

Diseases, weather and low prices hit the orange sector in Costa Rica

HQ - The appearance of pests and diseases, in particular the 'dragón amarillo' (yellow dragon), the impact of the weather and a sharp drop...

Today’s Vehicle Restriction June 15: 3 & 4 CANNOT circulate

Today, Tuesday, June 15, vehicles with plates ending 3 & 4 CANNOT circulate The measure is countrywide and applied between 5:00 am and 9:00 pm,...

Internet speed decreases during peaks in service

QCOSTARICA - Ever wonder why your surfing on the Internet slows down, to even a crawl, mainly in the evenings? This is due to...

Today’s Vehicle Restriction June 16: 5 & 6 CANNOT circulate

Today, Wednesday, June 16, vehicles with plates ending 5 & 6 CANNOT circulate The measure is countrywide and applied between 5:00 am and 9:00 pm,...


Get our daily newsletter with the latest posts directly in your mailbox. Click on the subscribe and fill out the form. It's that simple!

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.