RS seeks to advance in reducing emissions in rice crops

RS seeks to advance in reducing emissions in rice crops
RS seeks to advance in reducing emissions in rice crops

Rio Grande do Sul intends to progress in practices and technologies that mitigate the emission of greenhouse gases (GHGs) in rice crops. This Rio Grande do Sul objective is shared with six other countries and will be discussed at an event in Porto Alegre starting this Tuesday. The workshop aims to promote sustainable rice production in Latin America and the Caribbean and is part of the Global Methane Hub project. The event will take place at the headquarters of Rio Grandense Rice Institute (Irga)between Tuesday and Thursday, with representatives from Chile, Colombia, Costa Rica, Ecuador, Uruguay and Brazil.

To move towards a zero or negative balance in carbon emissions in rice farming, Irga had a project worth around R$1.5 million approved by the Inter-American Institute for Cooperation on Agriculture (IICA), to be applied to research and extension. and in the transfer of knowledge of practices already identified to producers. The researcher and coordinator of the Irga Regional Research Station in the Central Region, Mara Grohssays that the resources will finance events and demonstration units on rural properties.

Soybean and rice rotation

Mara says that one of the practices already identified as most effective for reducing GHGs is the rotation of rice and soybeans. “When you alternate a year of rice with a year of soybeans, we have a 60% reduction in GHG emissions when rice returns. It is important that we are able to make rotation with rainfed crops viable in all regions of Rio Grande do Sul”, she argues.

According to the Irga researcher, one of the regions where advances are needed is the Central Region, due to problems with flooding and the land profile of small properties. “Small producers often find it difficult to improve their drainage system and acquire equipment such as furrowers, which allow them to make several furrows in the area and sow soybeans without running the risk of losing the crop due to flooding, which is the biggest fear of our producers. ”, he explains.

In addition to practices, the project will qualify the Irga Environmental Seal, created by the institute to promote the environmental sustainability of the irrigated rice production system and which last year included 58 producers. “With the resources from IICA, we will be able to carry out carbon analyzes in the soil of these producers who already have the Environmental Seal to see how much is being sequestered and also invest in the genetic improvement of Irga, to identify promising strains that have a standard of carbon emissions. lower methane”, says Mara. “In addition to the producer having practices in his farming, he can choose genetic material that has a lower emission standard.”

Advance soil preparation

The researcher emphasizes that rice cultivation does not emit methane, it only serves as a means of transporting the gas emitted in the soil into the atmosphere. Genetic improvement makes it possible to manipulate the emission pattern. The project also has other common actions with the other participating countries. This week, foreigners will learn about the production system and sustainable production practices in Rio Grande do Sul. “In 60% of the crop area, the soil is prepared in advance, which results in 25% less gas emissions, because it occurs far from the flood period.”

As part of the workshop program, there will be visits to a rural property in the municipality of Mostardas, in the Outer Coastal Plain region, where the direct planting system is adopted in rice growing areas. “It is one of the most important tools in carbon sequestration. We have to reduce emissions, have a negative balance, sequestering more carbon than we emit, or a zero balance, emitting and sequestering the same amount. That’s what we’re looking for”, points out Mara.

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The article is in Portuguese


Tags: seeks advance reducing emissions rice crops



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