EVALUATION OF AGRICULTURAL YIELD IN RELATION TO THE DOSES OF CHEMICAL FERTILIZERS

Abstract

The present paper proposes a bifactorial model obtained by a generalization of the unifactorial Mitscherlich model. After analysing the graphic representation of the experimental data and the theoretical curves, one can conclude that they present good concordance. Treatments with nitrogen fertilizers within the limits of 0 – 200 kg a.i. ha-1 determined different optimum and maximum values for each of the four fertilization variants with phosphorus and potassium (optimum value 97 kg ha-1 N on

Keywords

• differential equations
• mineral fertilizers
• mitscherlich
• model
• optimal doses