A5054228175- Crop Yield and Soil Fertility
- Climate change impacts on agriculture
- Agricultural Innovations and Practices
- Rice Cultivation and Yield Improvement
- Agronomic Practices and Intercropping Systems
- Soil Carbon and Nitrogen Dynamics
- Sustainable Agricultural Systems Analysis
- Plant and animal studies
- Irrigation Practices and Water Management
- Genetics and Plant Breeding
- Land Rights and Reforms
- Bioenergy crop production and management
- Wheat and Barley Genetics and Pathology
- Agriculture Sustainability and Environmental Impact
- Ecology and Vegetation Dynamics Studies
- Clay minerals and soil interactions
- Sunflower and Safflower Cultivation
- Soil Management and Crop Yield
- Remote Sensing in Agriculture
- Agricultural Science and Fertilization
- Land Use and Ecosystem Services
- Soil and Land Suitability Analysis
University of Nebraska–Lincoln
2023-2025
University of California, Davis
2020-2024
Consejo Nacional de Investigaciones Científicas y Técnicas
2023-2024
National Agricultural Technology Institute
2015-2022
National University of Mar del Plata
2017
Favorable climate and soils for rainfed crop production, together with a relatively low population density, results in 70–90% of Argentina grain production being exported. No assessment to date has tried estimate the potential extra soybean, wheat maize, which account 78% total harvested area, by yield gap closure on existing cropland area its impact at global scale. The objectives this paper are (i) how much additional could be produced without expanding closing gaps Argentina, (ii)...
Abstract Maize demand in Sub-Saharan Africa is expected to increase 2.3 times during the next 30 years driven by demographic and dietary changes. Over past two decades, area cropped with maize has expanded 17 million hectares region, limited yield increase. Following this trend could potentially result further cropland expansion need for imports satisfy domestic demand. Here, we use data collected from 14,773 smallholder fields region identify agronomic practices that can improve farm gains....
Agronomic data such as applied inputs, management practices, and crop yields are needed for assessing productivity, nutrient balances, resource use efficiency, well other aspects of environmental economic performance cropping systems. In many instances, however, these only available at a coarse level aggregation or simply do not exist.
<title>Abstract</title> The global food system relies on crop production in limited number of regions around the world. South American Pampas region is a major breadbasket due to favorable weather and fertile soils for reliable capacity produce large grain oilseeds surplus. However, decades, nutrient inputs have been much lower than other regions, leading heavy “mining” soil stocks. Here we evaluated impact degradation using surveys field-level data sets from across Pampas. Compared balanced...
Significance There is considerable debate about the effect of changes in and need to increase biodiversity agriculture. The spatial scale dependency crop diversity has not been formally addressed, this complicates understanding synthesis. Crop species also a temporal component fundamental importance that ignored assessments. To fill gap, we develop framework for its relation using 30 m resolution distribution data United States. We show aggregated can be downscaled estimate at farm scale....
Abstract High levels of crop species diversity are considered beneficial. However, increasing might be difficult because environmental constraints and the reliance on a few major crops for most food supply. Here we introduce theoretical framework hierarchical diversity, in which requirements limit potential demand agricultural products further constrain attainable diversity. We estimated global potential, attainable, current grid cells 86 km 2 . To do so, first cropland suitability values...
Acid tropical soils may become more productive when treated with agricultural lime, but optimal lime rates have yet to be determined in many regions. In these regions, can estimated requirement models based on widely available soil data. We reviewed seven of and introduced a new model (LiTAS). evaluated the models’ ability predict amount needed reach target change chemical properties data from four incubation studies covering 31 types. Two foundational models, one targeting acidity...
<title>Abstract</title> Acid soils are widespread across sub-Saharan Africa. Agricultural lime can be used to alleviate production constraints associated with soil acidity, but is not widely available in the region, and it unclear how profitable its use would be. To guide potential investments market development, we estimated profitability of acid remediation through liming. Crop yield loss acidity occurs on 32.7 M ha, or 23% Africa’s cropland. The burden $6.0 billion (6% current value), 70%...
Acid tropical soils may become more productive when treated with agricultural lime, and optimal application rates can be estimated lime requirement models. We review seven of these models introduce a new model. evaluated the models’ ability to predict amount needed reach target change in soil chemical properties data from four incubation studies covering 31 types. Two foundational models, one targeting acidity saturation other base saturation, were accurate than five that derived them, while...
<title>Abstract</title> Spatial information on yield potential is key to determine crop production existing cropland. Although statistical methods are widely used estimate and gaps at regional global levels, a rigorous evaluation of their performance lacking. Here, we compared outcomes from three common approaches against those derived ‘bottom-up’ approach based modeling local weather soil data for major crops in the United States. Our analysis revealed that failed capture spatial variation...
<title>Abstract</title> Maize demand in sub-Saharan Africa will increase 2.3 times during the next 30 years driven by demographic and dietary changes. Over past two decades, area cropped with maize has expanded 17 million hectares region, little improvement farmer yields. If these trends persist, massive and/or imports be needed to meet domestic demand. Here we used data collected from 13,364 smallholder fields identify agronomic practices that can promptly deliver large on-farm yield gains....