THE INFLUENCE OF WHEAT AND MAIZE CULTURES ON ROTATION AND MONOCULTURE ON THE ENZYMATIC COMPONENTS OF THE SOIL

MARIA DANIELA BUTURUGĂ, D. I. SĂNDOIU, G. ȘTEFANIC, MONICA LUMINIȚA BADEA, LILIANA L BĂDULESCU, AURELIA DOBRESCU

Abstract


In order to better characterize the soil's vitality and to assess the fertility level, pedo-enzymatic tests are used along with biotic and / or chemical analyzes. Pedo-enzymatic activities are evaluated in the laboratory to determine the potentials of a soil to release the ammonium and phosphorus required for soil and plant micropopulation nutrition. Pedo-enzymatic processes (pedo-phosphatase, pedo-amidase) are ongoing, to the extent that environmental conditions are favorable. The soil samples taken in the study were harvested from the Am (0-20 cm) horizon of the N0P70 fertilized variant, from the following crops: wheat after soybean crops of a three-year rotation, maize coming from a 4-year field temporarely outside the crop rotation, and from monocultures of wheat and maize. From the data analyzed as a result of this study it results that the crop rotation influences the pedo-enzymatic components of the soil. Total pedo-phosphatase activity in wheat and maize cultivation (rotating) was superior, the results being in the value group compared to the total pedo-phosphatase activity of the soil under the wheat and maize monocultures where the result of the analyzes indicated a much lower, being in b. The total soil pedo-amidase activity of wheat cultivated with maize as a precursor plant was superior, the result being in the a.


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