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Tree Growth University of Florida | Other University and Government Sites
Citrus Root Growth and Soil Pest Management Practices - "The root system of the citrus tree is composed of an integrated network of woody lateral roots from which arise bunches of fibrous roots...." Citrus Reset Management - "Replacement of dead and diseased trees in Florida citrus groves has always been an important part of the total production program...." Southwest Florida Citrus Yield By Tree Age in High Density Planting - "This study was to develop representative citrus yields by scion variety, rootstock and tree age that reflect high density planting and the growing conditions in southwest Florida...." Citrus Fertilizer Management on Calcareous Soils - "Florida calcareous soils are alkaline (have pH values greater than 7) because of the presence of calcium carbonate (CaCO3), which dominates their chemistries. These soils can contain from about 3% to more than 25% CaCO3 by weight, ...." Citrus Grove Leaf Tissue and Soil Testing: Sampling, Analysis, and Interpretation - "Citrus tree nutritional status can be determined using leaf tissue and soil sampling and analysis. There are two types of sampling: Predictive sampling evaluates the effectiveness of the fertilizer program for the current year......" Controlled-Release Fertilizers for Florida Citrus Production - "Synthetic controlled-release fertilizers (CRFs) have existed commercially for more than 35 years......" Effects of P and K Fertilization on Young Citrus Tree Growth - "In 1998, an experiment was initiated in south Florida to study P and K fertilizer rate effects on young tree growth where a constant, non-limiting N fertilizer rate was applied to all trees." Effects of Water and Nutrients on the Postharvest Quality and Shelf Life of Citrus - "Although fruit quality usually improves as soil moisture and nutrients increase from deficient to optimum, levels that produce maximum yield may not always correspond to those that result in the highest fruit quality......." Fertigation Nutrient Sources and Application Considerations for Citrus - "Chemical reactions between fertilizer materials can result in the formation of precipitates, which can plug the irrigation system. The uniformity of the fertilizer application depends on the uniformity of the water application." A Guide to Citrus Nutritional Deficiency and Toxicity Identification - "Citrus trees in commercial and dooryard plantings can exhibit a host of symptoms reflecting various disorders that can impact their health, vigor, and productivity to varying degrees." Irrigation, Nutrition, and Citrus Fruit Quality - "The effects of irrigation and nutrition on fruit quality are important and should be understood and taken into consideration by citrus growers and production managers to increase profitability and enhance sustainability and worldwide competitiveness." Macronutrient Deficiencies in Citrus: Calcium, Magnesium, and Sulfur - "Perhaps the most distinctive observation about citrus nutrition is the variety of nutrient deficiencies that can appear under intensive cultivation." Macronutrient Deficiencies in Citrus: Nitrogen, Phosphorus, and Potassium - "Perhaps the most distinctive observation about citrus nutrition is the variety of nutrient deficiencies that can appear under intensive cultivation." Managing Phosphorus Fertilization of Citrus using Soil Testing - "Phosphorus fertilizer is regularly applied to Florida citrus, ranging from annual applications in young orchards to applications of up to 100 lbs P2O5/acre every 1 to 4 years in bearing orchards." Micronutrient Deficiencies in Citrus: Boron, Copper, and Molybdenum - "This fact sheet describes and discusses deficiencies that occur commonly in the field and the symptoms that can be used as a guide for fertilizer practices." Micronutrient Deficiencies in Citrus: Iron, Zinc, and Manganese - "This fact sheet describes and discusses deficiencies that occur commonly in the field and the symptoms that can be used as a guide for fertilizer practices." Plant Nutrients for Citrus Trees - "Seventeen elements are considered necessary for the growth of green plants...." Prioritizing Citrus Nutrient Management Decisions - "Citrus nutrient management can be divided into four components: Monitoring, program development, application, and evaluation." Dwarfing and Freeze Hardiness Potential of Trifoliate Orange Rootstocks - "Trifoliate orange is in the same taxonomic group as other types of citrus like oranges (Citrus sinensis) and grapefruit (Citrus paradisi) but it is in a different genus."
Other Universities & Research Institutions (Links to Non-University of Florida/IFAS sites are provided as a service and do not imply endorsement of information or products) Pruning Citrus - "Citrus trees normally require little pruning beyond the removal of root sprouts, water sprouts and dead wood...." Caring for Young Citrus Trees - Australian site the covers many issues related to young tree growth and care. Budding Citrus Trees - "Citrus budding is a plant propagation technique that any homeowner can do." Topworking of Citrus Trees by Bark Grafting - "The advantage of topworking is that trees usually come back into production sooner than nursery trees..."
Fall Leaf Tissue Samples Important for Maintaining Citrus Growth - "The
grower can remove much of the guesswork of fertilization by adhering to UC
recommendations of critical levels of nutrients in the tissues of
appropriately sampled leaves."
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This website is designed and maintained by Mark Ritenour, Ph.D. Design contributions also provided by: Mike Burton, Jim Ferguson, Ph.D, Kenny Osteen, David Coleman, and Buddy Tignor, Ph.D. This site was supported through FCPRAC grant #999-210 & #7276182-12. For questions or comments, contact Mark Ritenour.
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