INTA research identifies optimal planting densities for Argentine crops

Agricultural research conducted by the National Institute of Agricultural Technology (INTA) in Argentina has provided new data on optimal planting densities for sunflower and maize crops.

In the Junín region, an experiment conducted in Morse evaluated various sunflower planting densities. The study found that a density of 47,700 plants per hectare yielded better results and higher profit margins compared to lower densities of 34,500 plants per hectare or higher densities of 54,500 plants per hectare. This research aims to support local decision-making as sunflower cultivation regains importance in the region due to genetic innovations and international market shifts.

In San Luis, INTA researchers conducted trials on maize under rainfed conditions. Increasing planting density from 5 to 8.5 plants per square meter resulted in a 27% increase in average yield, rising from 5,825 kg/ha to 7,408 kg/ha. While the number of grains per area increased by approximately 63%, the individual weight of the grains decreased by about 19%. Researchers noted that this specific success was tied to favorable water availability during the flowering and filling stages and should not be viewed as a universal rule for all seasons.