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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. Monitoring Nitrogen Transformations and Their Interaction with Potassium Uptake in Cotton Production SystemsUnderstanding the temporal dynamics of soil nitrogen (N) is critical for optimizing nutrient management in cotton production. This research monitored soil N transformations, specifically ammonium (NH₄⁺) and nitrate (NO₃⁻), throughout the cotton growing season. An additional focus was also placed on interactions between soil N forms and the uptake of essential plant nutrients, particularly potassium (K). Soil samples were collected at multiple depths and time points across different management... J. Derrick, B. Arnall, N. Mathey, B. oliveira liberato, C. Camacho |