ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785
 

RESEARCH ON THE CHEMICAL PROPERTIES OF THE SOIL ACCORDING TO SOME AGRICULTURAL PRACTICES APPLIED TO THE SORGUM GRAIN CROP

Published in Scientific Papers. Series A. Agronomy, Vol. LXV, Issue 1
Written by Vera CARABULEA, Dumitru Marian MOTELICĂ, Georgiana PLOPEANU, Elena TROTUȘ, Simona ISTICIOAIA, Bogdan Ștefan OPREA

Sorghum, due to its high drought resistance, has become more common in many parts of the world. The article presents the results of the changes generated, by the two factors studied (Factor A - sowing density with three graduations and Factor B - mineral fertilization, with nitrogen and phosphorus with five graduations) and by their interaction, in some soil characteristics from an experimental field organized by A.R.D.S. Secuieni, where grain sorghum was cultivated. In order to assess the influence of fertilization and plant density, 45 soil samples were collected from the experimental field and analyzed. From the analysis of laboratory tests and statistical data processing, results statistically significant changes soil reaction, manganese and mobile iron contents under the influence of the interaction of the two experimental factors studied: sowing density and level of fertilization. The other soil quality indicators have no changed statistically significant under the influence of the tested technological factors however, showing slight increasing trends of the N, P, K contents in soil as a result of the applied fertilization treatments.

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