ABSTRACT.- There is a need for rigorous and scientifically-based testing standards for existing and new enteric methane mitigation technologies, including antimethanogenic feed additives (AMFA). The current review provides guidelines for conducting and analyzing data from experiments with ruminants intended to test the antimethanogenic and production effects of feed additives.

ABSTRACT.- Questions: Degradation of facilitative interactions of native species can play an important role in the establishment and expansion of invasive plants in communities. We evaluated the relationship between the level of invasion of Cynodon dactylon and the arbuscular mycorrhizal colonization of the native Paspalum notatum in Uruguayan grasslands, which were either extensively managed (natural vegetation [NG]) or oversown with exotic legumes and fertilized with phosphorus (NG + LP).

ABSTRACT.- Latin America (LA) is one of the main providers of meat and fibres of the world, comprising 30% and 6% of cattle and sheep stock in the world. The region has the largest reserve of land with agricultural potential determined by 16% of the world's agricultural land and 33% of its unused agricultural area. LA countries play a key role for food security not only in the region, but also for the rest of the world (OECD et al., 2023).

ABSTRACT.- Reduction of greenhouse gas (GHG) emissions, and particularly enteric methane (EM) emissions, from ruminant livestock is a global problem faced by all producers. Although large ruminants make up the majority of the enteric methane emissions from livestock, in 2015 there were 1.18 billion sheep in the world emitting 158 Mt of carbon dioxide (CO2) equivalents of EM, or 6% of the total EM emissions (FAO 2022).

CONTENIDO. -- Síntesis de la situación agroclimática 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. -- Destacamos para este mes: INIA Termoestrés.

ABSTRACT.- Wheat (Triticum aestivum L.) is a key global crop essential for food security. Enhancing wheat productivity is crucial to meet growing food demands. Quantitative trait loci (QTL) such as QFFE.perg-5A and QFEm.perg-3A have been previously linked to fruiting efficiency at the spike level, but their effects on plot-level yield components remain unexplored. 4290/© 2024 Elsevier B.V. All rights are reserved.

ABSTRACT.- Spatial crop yield prediction provides valuable insights for supporting sustainable and precise crop management decisions. This study assessed the capabilities of advanced Deep Learning (DL) architectures in predicting within-field soybean yields using spectral bands from Sentinel-2 (RS-Inputs), weather (W-Inputs), and topographic attributes (TA-Inputs). © 2024 The Author(s). Published by Elsevier B.V

ABSTRACT.- Introduction: Improving the feed efficiency (FE) in ruminants offers significant potential for optimizing the use of natural feed resource while simultaneously

ABSTRACT.- The rice sector is facing the challenge of increasing rice yields while maintaining or improving input use efficiency. The purpose of this study was to determine the most effective vegetation indices for monitoring nitrogen uptake (N uptake) under different irrigation techniques. The study was conducted in Uruguay over two rice-growing seasons. A split plot experimental design featured two irrigation treatments (main plots): continuous flooding (C) and alternate wetting and drying (AWD).
© 2024 by the authors. Licensee MDPI, Basel, Switzerland.

ABSTRACT.- Societal Impact Statement: Arbuscular mycorrhizal (AM) fungi support plant development by enhancing growth and resistance to pathogens through mycorrhiza-induced resistance (MIR). However, the varying capacities of individual AM fungal species to induce MIR are not well-understood, limiting their agricultural potential. This study reveals that specific AM fungal isolates differ in their ability to enhance tomato growth and reduce biomass losses due to Rhizoctonia solani infection, a major root pathogen.