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Mostrando ítems 1-20 de 26
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A systems-level yield gap assessment of maize-soybean rotation under high- and low-management inputs in the Western US Corn Belt using APSIM
(Elsevier, 2019-08)Quantifying yield gaps (potential minus actual yield) and identifying management practices to close those gaps is critical for sustaining high-yielding production systems. The objectives of this study were to: 1) calibrate ... -
Análisis de la molienda de expeller de soja evaluando la performance de diferentes tipos de molinos
(Universidad Autónoma Metropolitana-Iztapalapa (México), 2017-08)El objetivo del presente trabajo es analizar la performance del proceso de molienda y tamizado de expeller de soja, subproducto de la extracción de aceite por el método de extrusado-prensado, para su posterior utilización ... -
Assessing the impact of high-input management for reducing soybean yield gaps on high-productivity farms
(Elsevier, 2022-03)To increase soybean actual yields (Ya), modern farmers are interested in exploring novel intensification options. We hypothesize that the inclusion of a high-input treatment in high-productivity systems may potentially ... -
Comportamiento de inoculantes para soja en la zona sur de la provincia de Santa Fe, Argentina
(Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, 2007)La soja fija el nitrógeno atmosférico en simbiosis mutualista con Bradyrhizobium japonicum y/o Sinorhizobium, mediante la Fijación Biológica del Nitrógeno (FBN). El uso de especies capaces de nodular vigorosamente y de ... -
Contribution of different sources and origins of nitrogen in above- and below-ground structures to the partial nitrogen balance in soybean
(Springer, 2022-04)Aims: Most studies that quantified the biological N fixation (BNF) and partial N balances of soybean have ignored the belowground structures. Our objectives were to evaluate the contribution of belowground structures to ... -
Does biological nitrogen fixation modify soybean nitrogen dilution curves?
(2018)Biological nitrogen fixation (BNF) in soybean [Glycine max (L.) Merr.] represents, on average, 60% of total nitrogen (N) uptake. Nitrogen dilution curves link aboveground crop N concentration (%N) to biomass accumulation (W). ... -
Efectos de cultivos de cobertura sobre el agua del suelo, el aporte de carbono al sistema y el rendimiento de soja en diferentes ambientes
(Facultad de Ciencias Agrarias, Universidad Nacional del Litoral, 2022-02)La sustentabilidad de los ambientes agrícolas en la región pampeana húmeda argentina es afectada por el monocultivo de soja (Glycine max (L.) Merr.). La baja eficiencia en el uso de los recursos del ambiente durante los ... -
Estimating nitrogen, phosphorus, potassium, and sulfur uptake and requirement in soybean
(Elsevier, 2021-07)Estimation of crop nutrient demand, seed nutrient removal, and nutrient use efficiency (yield to nutrient uptake ratio) are crucial for pursuing both balanced nutrition and more sustainable farming systems. However, the ... -
Evaluating a hybrid soil temperature model in a corn-soybean agroecosystem and a tallgrass prairie in the Great plains
(University of Nebraska Press, 2010)Simulation models of soil-related biological processes usually require soil temperature data. Frequently these soil temperatures are simulated, and the soil temperature algorithms cannot be more complicated than the original ... -
Exploring nitrogen limitation for historical and modern soybean genotypes
(American Society of Agronomy, 2018-10)The United States (USA) and Argentina (ARG) account for over 50% of the global soybean [Glycine max (L.) Merr.] production. Soybean N demand is partially met (50–60%) by the biological nitrogen fixation (BNF) process; ... -
Identifying sulfur deficient fields by using sulfur content; N:S ratio and nutrient stoichiometric relationships in soybean seeds
(2012-08)Sulfur (S) fertilization has increasingly become an important issue in crop management. In Argentina S deficiencies have been reported, but there has been no success in finding soil tests for predicting soybean response ... -
Intensive Soybean Management : an Integrated Systems Approach
(2017)Ecological intensification impacted soybean yield, biomass and N uptake. Narrow row spacing, high seeding rate, other best production practices, and balanced nutrition increased partitioning effi ciency for biomass, measured ... -
New insights into soybean biological nitrogen fixation
(American Society of Agronomy, 2018-08)Soybean biological N2 fixation (BNF) relationships with fertilizer N and yield response have been comprehensively reviewed in the scientific literature. However, the study of the N-gap between N uptake and N supplied by ... -
Nitrogen balance in a plant-soil system under different cover crop-soybean cropping in Argentina
(2018-10-10)Cover crops (CC) provide many benefits for the soil and the following crop but their effects on nitrogen (N) release and balance in continuous no-tillage soybean (Glycine max L. Merr.) production are little known. Estimation ... -
Nutrient partitioning and stoichiometry in soybean: A synthesis-analysis
(2017-01)On-farm attainable soybean yields are primarily limited by nutrient and water supply. High-yielding soybeans is related to high nutrient uptake. A proposed theoretical framework underpinning yield formation includes plant ... -
Nutritional and environmental effects on biological nitrogen fixation in soybean: a meta-analysis
(Elsevier, 2019-07)Biological N2 fixation (BNF) and mineral soil absorption are complementary N sources for soybean growth. BNF is sensitive to nutrient and environmental conditions, though a comprehensive synthesis of the studies underlying ... -
Parasitoides (Hymenoptera) de insectos plaga del cultivo de soja en el centro sur de la provincia de Santa Fe (Argentina) = Parasitoids (Hymenoptera) of insect pests in soybean crops in the south center of Santa Fe province (Argentina)
(Sociedad Entomológica Argentina, 1997)The objetive of this survey was to identify hymenopterous parasitoids of major pests in soybean crops. Eighteen hymenopterous species belonging to eight families were obtained. Major parasitoids diversity was found in ... -
Performance evaluation of protein recovery from Argentinian soybean extruded-expelled meals under different operating conditions
(Elsevier, 2019)The soybean extruded-expelled (EE) meals are the byproduct of the process commonly used by small or medium-sized Argentinian companies for obtaining soy oil. In this work, the performance of the pH-shifting process for ... -
Plant stand, nodulation and seed yield in soybean as affected by phosphate fertilizer placement, source and application method
(2013-11)Establishing an optimum plant population at planting is the start-point for assuring seed yield in crops. In addition to plant establishment, the onset of a fully functional nodule system is crucial for nitrogen nutrition ... -
Producción y calidad de diferentes cultivos de cobertura en monocultivo de soja
(Facultad de Ciencias Agrarias, Universidad Nacional de Rosario, 2017)Los cultivos de cobertura (CC) son una alternativa para mejorar la materia orgánica del suelo, capturar nutrientes lábiles minimizando su lixiviación durante largos períodos de barbecho, típicos de sistemas agrícolas con ...