Efficacia delle Fasce Tampone e della Gestione del Suolo per il Controllo dei Nitrati in Vigneto

Research output: Other contribution

Abstract

[automatically translated] Buffer strip use in vineyard could represent an environmental strategy for nitrate control of surface and deep water two to Agriculture managment. Determines the buffer strip to reduction of soil erosion and consequently can reduce and pollulant nutritive elements losses. With the aim to evaluate the buffer strips and soil managment effectiveness on nitrate control in vineyard, a trial was any carried out in the South-West part of Sicily caratterizzata by an high nitrate losses sensitivity, an annual rainfall of about 516mm and an average temperature of 18 ° C. In a vineyard on about 7% slope and 90m length 10 meter buffer strip was seeded using a Perennial ryegrass permanent meadow. Vineyard was managed Both traditionally and alternative management using Durum wheat cover crop and Vetch cover crop. Monthly nitrate were monitored along vineyard slope and buffer strips for all soil management options Studied buffer strip to evaluate effectiveness for nitrate control. To study nitrate movement an isotopic N fertilization (using labeled Nitrogen- 15N) was done on March just on the top of bufer strips. Perennial ryegrass biomass and his isotopic nitrogen content was alsomonitered. Vetch cover crop management, especially after bomass moving into the soil, promoted to excess nitrogen in comparison to traditional and durum wheat, but Generally nitrate nitrate values INCREASE from the top to the bottom of the vineyard. Buffer strip efficiency ranged between 70 and 40% demonstrating That in nitrate control is possible only if cropping system diversification "field measures for diffusive pollution sources control" and specific "
Original languageItalian
Publication statusPublished - 2010

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