Citrus is a major global fruit crop grown in more than 130 countries, with great economic and nutritional importance. Production surpassed 105 million metric tons in the early 2000s, but growth has been hindered over the past two decades by diseases, nutrient issues, and other environmental stresses that reduce yield and fruit quality. Although Florida has ideal soils and climate for citrus, its industry has sharply declined due to Huanglongbing (citrus greening), caused by the bacterium Candidatus Liberibacter asiaticus.
A new study, “The Influence of Soil pH on Citrus Root Morphology and Nutrient Uptake Efficiency,” highlights the critical role soil pH plays in determining citrus root development, nutrient absorption, and overall tree health—offering valuable insights for growers facing unprecedented production challenges.
The study examines citrus root morphology across a range of soil pH levels, analyzing how different conditions influence root architecture, growth patterns, and overall nutrient uptake. Findings indicate that soil pH plays a crucial role in determining root elongation, branching, and absorption efficiency of essential nutrients such as nitrogen, phosphorus, and potassium.When soil pH falls outside the optimal range, citrus roots exhibit reduced growth and efficiency, limiting the plant’s nutrient uptake capacity and ultimately affecting fruit yield and quality.