BUENOS AIRES — Argentina's stalled soy harvest is set for a boost from a period of expected dry weather, meteorologists and grains analysts said, after recent heavy rains in key farming areas had slowed down farmers gathering in their crops.

The expected weeks of dry weather should help allay fears of further losses to the important soy harvest in the world's largest exporter of processed soy meal and oil, which relies heavily on the grain for much-needed foreign currency.

"There will be good weather for at least a week, it may be up to ten days. The rhythm (of the soybean harvest) will rebuild under these conditions," said Germán Heinzenknecht, meteorologist at the Applied Climatology Consultant (CCA).

Argentina, the world's top supplier of processed soy, is set to produce 43 million metric tons of the oilseed in the 2020-21 harvest, the Buenos Aires grains exchange estimates, which was knocked earlier in the season due the effects of a drought.

In recent weeks, however, the focus of attention has been on the significant delay in soybean harvesting due to heavy rains in important agricultural areas, which set off alarms regarding potential production losses.

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Buenos Aires grains exchange data shows Argentina's soybean harvest being 18.5% complete, some 38 percentage points behind where it was at the same time a year earlier.

Delays in the grain harvest due to excess humidity - which make it difficult for farmers to work on the fields - are a threat since there is a risk that the soybeans will sprout in the pods, which translates into a loss of harvestable area.

Andrés Paterniti, an analyst at the Buenos Aires exchange, said he expected 10-14 days without significant rains, which meant "work in the fields should be intensified."

Paterniti added the delay was also in part because Argentine producers had waited to plant their crops due to the drought that affected the country in the first half of 2020, which may affect the productivity of these plants.

(Reporting by Maximilian Heath and Hugh Bronstein; Editing by Adam Jourdan and David Evans)