Effect of surface cover on grapevine and wine quality. Results on Chasselas grape in the Lake of Geneva region. 1.Agronomic results. | Influence du type d'enherbement sur le comportement de la vigne et la qualite des vins. Resultats d'un essai sur Chasselas dans le bassin lemanique. 1.Resultats agronomiques
2001
Spring, J.-L. (Station federale de recherches en production vegetale de Changins (RAC), Nyon (Switzerland))
Field trials have been performed at the Swiss Federal Research Station of Changins (Pully) to study the influence of different surface covers on managment of nitrogen nutriments with Chasselas grape. Compared to a total perennial grass cover, the presence of underground clover (Trifolium subterraneum) every second row, increased the availability of mineral nitrogen (Nmin) during summer. This practice has improved significantly the nitrogen nutrition of the vine, as well as its vigour and fertility. A permanent cover with various botanical compositions showed intermediate effect.
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Эту запись предоставил Agroscope Reckenholz-Tänikon Research Station