The influence of several fertilizer rates on the quality of wheat flour on cambic chernozem from A.R.D.S. Caracal

Abstract

In order to establish the influence of several fertilizer rates (nitrogen, phosphorus and potassium) on the quality of flour obtained from wheat there was established a polifactorial experiment, in 2011 at Agricultural Research and Development Station Caracal on a baticalcaric cambic chernozem. This trial has analyzed the folowing quality indicators of flour: wet gluten, falling index, Zeleny sedimentation test, the index of gluten formation, glutenic index, farinograph test, alveograph test. After analyzing these indicators there resulted that a good quality flour can be obtained when moderate nitrogen rates are applied, of N100-N150 kg/ha as well as phosphorus in a rate of 80 kg/ha. The single using of nitrogen, phosphorus and potassium fertilizers do not ensure a good quality of the flour. The mixed applying of fertilizers determines a better action as nutrients and crop requirements are fulfilled. Single applying of fertilizers creates disequilibrium in plant nutrition and, as a result, the flour has poor quality.