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Title: Influence of Climate Variability and Soil Fertility on the Forage Quality and Productivity in Azorean Pastures
Authors: Melo, Catarina D. 
Maduro Dias, Cristiana S. A. M.
Wallon, Sophie
Borba, Alfredo E. S.
Madruga, João
Borges, Paulo A.V. 
Ferreira, Maria T.
Elias, Rui B.
Keywords: forage production; nutritive values; digestibility; seasonal variation; soil type; island pastures; global warming
Issue Date: 2022
Project: PASTURCLIM (ACORES-01-0145-FEDER-000082) financed by FEDER in 85% and by Azorean Public funds by 15% through Operational Programme Azores 2020. 
Serial title, monograph or event: Agriculture (Switzerland)
Volume: 12
Issue: 3
Abstract: This work aimed to determine and compare the effect of elevation and season on the productivity and the nutritive value of pastures in the Azores (Terceira Island). Forage was collected and analysed for dry matter (DM), crude protein (CP), neutral detergent fibre (NDF), acid detergent fibre (ADF), acid detergent lignin (ADL), ether extract (EE), mineral ash (Ash), dry matter digestibility (DMD) and organic matter digestibility (OMD). The net productivity (NP) was higher in the low elevation pasture A (1.80 g m2), lower in pasture B (0.98 g m2) and peaked in the winter in both pastures A (3.57 g m2) and B (2.33 g m2) and during the summer in the high elevation pasture C (2.15 g m2). The soil chemical proprieties varied significantly among the three pastures. The highest soil pH, available P, K, Ca and Mg were recorded in pasture A. Positive correlations were observed between all soil parameters analysed and NP, except for the OM content. The DM, PB and EE changed significantly with elevation, while all nutritive parameters (except CP, EE and Ash) increased significantly along the growth season. Environmental factors influenced the nutritive parameters and productivity, suggesting that climate change might have significant impacts on forage production and quality.
ISSN: 2077-0472
DOI: 10.3390/agriculture12030358
Rights: openAccess
Appears in Collections:I&D CFE - Artigos em Revistas Internacionais

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