Sustainability by Function (SbF): A Case Study in a Rainfed Vineyard to Reduce the Loss of Soil Nutrients

Manuel López-Vicente, Sara Álvarez, Elena Calvo-Seas and Artemi Cerdà
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Manuel López-Vicente: AQUATERRA Research Group, Advanced Scientific Research Centre, University of A Coruña, Campus de Elviña, 15071 Coruña, Spain
Sara Álvarez: Unit of Woody and Horticultural Crops, Instituto Tecnológico Agrario de Castilla y León (ITACyL), Ctra. Burgos km 119, 47071 Valladolid, Spain
Elena Calvo-Seas: Independent Researcher, Casa Calvo, 22144 Bierge, Spain
Artemi Cerdà: Departament de Geografia, Universitat de València, Blasco Ibàñez, 28, 46010 Valencia, Spain

Land, 2022, vol. 11, issue 7, 1-16

Abstract: The effectiveness of a seeded cover crop to minimize soil nutrient losses was evaluated in a rainfed vineyard. Two sediment tanks were installed (ST2: drainage area with high ground cover (GC: 82%) and ST3: very high GC (89%)) and samples from 26 time-integrated periods (TIP) were collected over 15 months. The average soil nutrient content was previously estimated in the drainage areas of ST2 (N total : 0.967 mg/g; P ava : 0.411 mg/g; K ava : 1.762 mg/g) and ST3 (N total : 0.711 mg/g; P ava : 0.437 mg/g; K ava : 1.856 mg/g). The sediment nutrient concentrations and the sediment/soil enrichment ratios were comparable between ST2 and ST3, but the total loss of nutrients clearly differed among areas. The loss of nutrients in the area with lower GC (379.7 g N-P-K/ha/yr) was 8.3 times higher than in the area with higher GC (45.8 g N-P-K/ha/yr), and this pattern remained during the months with low, medium and high GC: 91.9, 2.1 and 2.1 g N-P-K/ha/month in ST2 and 6.9, 3.0 and 3.5 g N-P-K/ha/month in ST3. The benefits of greater GC promote the environmental and agronomic sustainability by the functions of the cover crop, favoring healthy soils and a reduction in the investment of the farmers in fertilizers. This is very relevant in a postpandemic world under the threat of the war in Ukraine, the lack of fertilizers and the need for a local production of food.

Keywords: vineyard; cover crop; sediment yield; enrichment ratio; sustainability (search for similar items in EconPapers)
JEL-codes: Q15 Q2 Q24 Q28 Q5 R14 R52 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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