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1. Nutrient Partitioning Changes in the Past 30 Years of Cotton ProductionModern cotton (Gossypium hirsutum L.) cultivars are more compact and efficient due to optimization of genetics and changed management practices in the past 30 years. The most recent work evaluating nutrient uptake by cotton was done in early 1990s, hence a need to re-evaluate the nutrient accumulation and requirements in modern high productivity cultivars. The objective of this study was to compare the resource allocation of modern cotton cultivars (PM HS26, FM 958, and DP 1646)... I.B. Pabuayon, G. Ritchie, K. Lewis |
2. Temporal and Spatial Variability of Nitrogen Use Efficiency Across Landscape Positions in Southern High PlainsOptimizing nitrogen use efficiency (NUE) is crucial for enhancing crop productivity, managing resources effectively, and promoting environmental sustainability. In response to the growing significance of sustainable agriculture, this research rigorously explores the temporal and spatial dynamics of NUE in the unique agroecosystem of the Southern High Plains. With a focus on precision nitrogen management tailored to the region's distinctive conditions, the study aims to provide valuable insights... R. Karn, W. Guo, K. Lewis, G. Ritchie, M. Siebecker |
3. Advancing Precision Nitrogen Management in Agriculture: a Multifaceted ApproachAdvancing precision nitrogen management in agriculture involves achieving a balance between maximizing crop yield and minimizing environmental impact. Traditional nitrogen management approaches often lead to inefficiencies, contributing to environmental issues such as nitrous oxide emissions and nitrogen runoff. Significant challenges persist in quantifying factors influencing nitrogen dynamics in the soil-plant-atmosphere system, including landscape positions, soil properties, weather patterns,... W. Guo, R. Karn, K. Lewis |