Research Concerning the Agrochemical Optimization of the Fertilization System for Wheat Crops in the Transylvanian Plain

Abstract

The current research is based on the production results obtained on wheat crops in long term experiments conducted on an argyle phaeozem soil at SCA Turda.The goal of this research is to scientifically, agrochemically and economically substantiate the differentiated fertilization systems involved in obtaining big productions in the reference area. In this study we tried to track the effect of the nitrogen-potassium interaction in achieving the productions obtained in 2012. The research presents the stated results as annual (partial) values and it will continue with them as being reference values for further experimental years (as stages in long term experiments) and obviously with approaches that will economically substantiate the suggested solution. The production data are obtained from these experiments, framed in the “long term experiments system†from ASAS-ICDCPT Fundulea  network which hold objectives that target both the effect and efficiency of differentiated fertilizations on productions and also the impact of fertilizers on the soil fertility evolution, on the quality of the productions obtained. The degree of novelty of this study can be expressed through the fact that for the type of soil and genotypes used in the experiments we can establish fertilization solutions and synthesized mathematical models with a high dissemination and applicability value in similar ecologic conditions.The obtained results present the production levels obtained for wheat crops (Dumbrava kind) at two alternatives for prior crops-corn and soy-statistically processed using variance and quadratic regression, as useful models for fertilization in the fertilization systems that were researched. It is obvious that at the end of these annual researches the presented models will include the same objectives as in the prior years that were studied.The already existing and further research will enrich the study’s utility in taking a rational fertilization decision based in the future also on the support of the suggested solutions through economically efficiency calculations of these solutions. The presented data hold originality, according to which the suggested solutions through fertilization models become important and present a real efficiency in the fertilization practice and technologies applied to wheat crops.