Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 2
Written by Aurica SOARE
The study aims at determining the extent to which increasing plant density in maize crops is a means of increasing yield per unit area, and the objective is to determine the level of plant tolerance in terms of plant density per unit area with no consequences on the size of productivity elements. As a consequence of downsizing the nutrition area from 0.15 m² (for the 70 cm sown variant) to 0.076 m² (for the 35 cm sown variant), the vegetative growth was diminished with implications on the size of the intake area at the level of each plant, but with an increase in the leaf area index values due to the high density covering the soil surface much better. The yield obtained was 10.16 tons of grains/hectare in the case of the equally spaced row seeding scheme at 70 cm clearance and 7.33 tons of grains/hectare in the equidistant row seeding scheme at 35 cm spacing between rows.
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