Published in Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 1
Written by Mihaela BĂLAN, Oana Alina NIȚU
This study investigates the temporal dynamics of key agrochemical properties of soil in a sown grassland under the influence of mineral fertilization and water erosion on a slope of 10-15%, at the Preajba Experimental Center, Gorj County. Research was conducted on a stagnic luvisol using three experimental treatments: unfertilized control (N0P0K0), fertilization with N60P60K60, and fertilization with N100P90K60, each replicated three times in a randomized block design. Soil samples were collected from the upper and lower positions of the plots at three distinct time points: prefertilization
(April), post-fertilization (May), and at the end of the growing season (October). The results demonstrated highly significant increases in hay yield in the fertilized treatments, while soil agrochemical properties exhibited moderate changes, characteristic of soils with high buffering capacity and pronounced chemical inertia. Mineral fertilization induced slight acidification and increases in available phosphorus and potassium, whereas organic matter and total nitrogen evolved gradually. These findings provide a scientific basis for the development of sustainable management strategies for sown grasslands on sloped terrains.
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{simplepopup popup="false" name="Citation1"}BALAN M., NITU O.A. 2026, SOIL FERTILITY DYNAMICS ON A SOWN GRASSLAND UNDER THE COMBINED INFLUENCE OF MINERAL FERTILIZATION AND WATER EROSION. Scientific Papers. Series A. Agronomy, Vol. LXVIII, Issue 1, ISSN 2285-5785, 15-23. {/simplepopup}