Assessment and Analysis of Designs for Fertilizer Experiments

This study aimed to present a methodology for statistical analysis of fertilizer experiments conducted in greenhouse conditions and on the field with different soil types and contrasting soil-physical characteristics. Experimental designs will be used in the planning of multifactorial experiments that allow the assessment of actions and interactions of more than three factors, varying on three or more levels. Assessment of the information content of two types of designs for fertilizer trials shows their suitability for application in a basic research project. Variance and regression analyzes are illustrated with results from pot experiment and field experiment with four nutrients - nitrogen, phosphorus, potassium, and silicon.Corresponding algorithms a given for processing of the results.