caa a22 4500 606218769 CHVBK 20210128101114.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s11104-015-2387-7 doi (NATIONALLICENCE)springer-10.1007/s11104-015-2387-7 Influence of two different cover crops on soil N availability, N nutritional status, and grape yeast-assimilable N (YAN) in a cv. Tempranillo vineyard [Elektronische Daten] [Eva Pérez-Álvarez, Teresa Garde-Cerdán, Pilar Santamaría, Enrique García-Escudero, Fernando Peregrina] Aim: The aim was to study the effects of two different cover crops (leguminous versus gramineous) on soil NO3 −-N availability, grapevine N status, and yeast-assimilable N (YAN) and amino acid profile in the must of a cv. Tempranillo vineyard from La Rioja (Spain) over 3years. Methods: Three treatments were established: gramineous (barley) and leguminous (Persian clover) cover crops and conventional tillage. Soil total N and extractable NH4 +-N at bloom, soil NO3 −-N content from budbreak to postharvest, leaf N content at bloom, and free amino acids and ammonia in must were monitored. Results: Each year, the barley cover crop treatment had lower soil NO3 −-N than tillage, while the clover treatment showed lower soil NO3 −-N than tillage in 2009 and showed higher values in 2010 and 2011. In 2011 leaf N content, yeast-assimilable N (YAN), and some amino acids in the grapes were lower in barley cover crop treatment thus affecting the amino acid profile. Meanwhile, the clover cover crop did not have these effects. Furthermore, relationships between leaf N content and various amino acids were also found. Conclusions: With the barley cover crop treatment, soil N availability decreased from the first year of the experiment, provoking a decrease in N grapevine status and in content of YAN and various amino acids at the third year. In contrast, clover cover crop maintained N grapevine status, YAN, and amino acid profile similar to conventional tillage. Therefore, our study shows how soil N can be managed both within a year and from year to year when two different cover crops are sown and how the grapevine N nutritional status and YAN content and amino acid profile can be modified in the must. Springer International Publishing Switzerland, 2015 Grape amino acids nationallicence Leaf nitrogen content nationallicence Soil nitrogen availability nationallicence Mediterranean vineyard nationallicence Wine quality nationallicence YAN : yeast-assimilable nitrogen nationallicence AOC : appellation d'origine contrôlée nationallicence Pérez-Álvarez Eva Instituto de Ciencias de la Vid y del Vino, ICVV (Gobierno de La Rioja-Universidad de La Rioja-CSIC). Servicio de Investigación y Desarrollo Tecnológico Agroalimentario (CIDA), Ctra. Logroño-Mendavia NA-134 Km. 90, 26071, Logroño, La Rioja, Spain aut Garde-Cerdán Teresa Instituto de Ciencias de la Vid y del Vino, ICVV (Gobierno de La Rioja-Universidad de La Rioja-CSIC). Servicio de Investigación y Desarrollo Tecnológico Agroalimentario (CIDA), Ctra. Logroño-Mendavia NA-134 Km. 90, 26071, Logroño, La Rioja, Spain aut Santamaría Pilar Instituto de Ciencias de la Vid y del Vino, ICVV (Gobierno de La Rioja-Universidad de La Rioja-CSIC). Servicio de Investigación y Desarrollo Tecnológico Agroalimentario (CIDA), Ctra. Logroño-Mendavia NA-134 Km. 90, 26071, Logroño, La Rioja, Spain aut García-Escudero Enrique Instituto de Ciencias de la Vid y del Vino, ICVV (Gobierno de La Rioja-Universidad de La Rioja-CSIC). Servicio de Investigación y Desarrollo Tecnológico Agroalimentario (CIDA), Ctra. Logroño-Mendavia NA-134 Km. 90, 26071, Logroño, La Rioja, Spain aut Peregrina Fernando Instituto de Ciencias de la Vid y del Vino, ICVV (Gobierno de La Rioja-Universidad de La Rioja-CSIC). Servicio de Investigación y Desarrollo Tecnológico Agroalimentario (CIDA), Ctra. Logroño-Mendavia NA-134 Km. 90, 26071, Logroño, La Rioja, Spain aut Plant and Soil Springer International Publishing 390/1-2(2015-05-01), 143-156 0032-079X 390:1-2<143 2015 390 11104 https://doi.org/10.1007/s11104-015-2387-7 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11104-015-2387-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pérez-Álvarez Eva Instituto de Ciencias de la Vid y del Vino, ICVV (Gobierno de La Rioja-Universidad de La Rioja-CSIC). Servicio de Investigación y Desarrollo Tecnológico Agroalimentario (CIDA), Ctra. Logroño-Mendavia NA-134 Km. 90, 26071, Logroño, La Rioja, Spain aut NATIONALLICENCE 700 1- Garde-Cerdán Teresa Instituto de Ciencias de la Vid y del Vino, ICVV (Gobierno de La Rioja-Universidad de La Rioja-CSIC). Servicio de Investigación y Desarrollo Tecnológico Agroalimentario (CIDA), Ctra. Logroño-Mendavia NA-134 Km. 90, 26071, Logroño, La Rioja, Spain aut NATIONALLICENCE 700 1- Santamaría Pilar Instituto de Ciencias de la Vid y del Vino, ICVV (Gobierno de La Rioja-Universidad de La Rioja-CSIC). Servicio de Investigación y Desarrollo Tecnológico Agroalimentario (CIDA), Ctra. Logroño-Mendavia NA-134 Km. 90, 26071, Logroño, La Rioja, Spain aut NATIONALLICENCE 700 1- García-Escudero Enrique Instituto de Ciencias de la Vid y del Vino, ICVV (Gobierno de La Rioja-Universidad de La Rioja-CSIC). Servicio de Investigación y Desarrollo Tecnológico Agroalimentario (CIDA), Ctra. Logroño-Mendavia NA-134 Km. 90, 26071, Logroño, La Rioja, Spain aut NATIONALLICENCE 700 1- Peregrina Fernando Instituto de Ciencias de la Vid y del Vino, ICVV (Gobierno de La Rioja-Universidad de La Rioja-CSIC). Servicio de Investigación y Desarrollo Tecnológico Agroalimentario (CIDA), Ctra. Logroño-Mendavia NA-134 Km. 90, 26071, Logroño, La Rioja, Spain aut NATIONALLICENCE 773 0- Plant and Soil Springer International Publishing 390/1-2(2015-05-01), 143-156 0032-079X 390:1-2<143 2015 390 11104