Current sustainability challenges of production systems require comprehensive answers with a multidimensional approach. The objective of this study is to select indicators that allow quantifying the productive-economic, social, and environmental evolution of dairy systems transitioning towards agroecology through a co-innovation approach.

Nutrients deficiencies - mainly phosphorus (P) and nitrogen (N) - often depress forage productivity (FP) in pasture-based systems in the Pampas region (Argentina). Fertilizations are often used to attenuate these deficiencies, but it is necessary to increase the use efficiency of the applied nutrients.

Uruguayan dairy farms underwent an important intensification process during the last decades. Although pasture-based grazing systems are still dominant, one important component of such intensification is the increase of extra-farm feed inputs, along with an increased stocking rate and an increased supplementation rate per cow.

The aims of this study were to assess the long-term effects of different CPR on SOC stocks on the subsoil, and to draw conclusions about the capacity of CPR to sequester C in Uruguay.We conclude that incorporating pastures in continuous crop sequences increased soil organic carbon stocks through the soil profile by an average of 28%.

The dairy sector is facing difficulties in its environmental sustainability. A method is presented to assess sustainability based on the analysis of energy flows, with a particular focus on circularity. The results show that intensive dairy production systems, even those based on grazing, present an unbalanced situation in flow circularity and mobilizing more resources than they provide. This type of analysis is a first step in the research of sustainable solutions for the dairy sector, and where the measurement of carbon and nitrogen flows would be complementary.

The dairy sector is facing difficulties in its environmental sustainability. A method is presented to assess sustainability based on the analysis of energy flows, with a particular focus on circularity. The results show that intensive dairy production systems, even those based on grazing, present an unbalanced situation in flow circularity and mobilizing more resources than they provide. This type of analysis is a first step in the research of sustainable solutions for the dairy sector, and where the measurement of carbon and nitrogen flows would be complementary.

CONTENIDO. -- Síntesis de la situación sgroclimática de enero-- Perspectivas climáticas trimestrales elaboradas por el IRI de la Universidad de Columbia (Más información puede encontrarse en el sitio del IRI:http://www.iri.columbia.edu) -- Índice de vegetación (NDVI) -- Precipitaciones -- Porcentaje de agua disponible (PAD) -- Agua no retenida (ANR) -- Índice de bienestar hídrico (IBH) -- Perspectivas climáticas feb-mar-abr elaboradas por el IRI de la Universidad de Columbia.