Soil and Water pH Play a Key Part in Nutrition

Tacy CalliesNutrition, Water

soil

By Tripti Vashisth, Davie Kadyampakeni and Lushan Ghimire In the past few years, horticultural citrus grove management practices have changed significantly in Florida. It is a common observation across the state that huanglongbing (HLB)-affected trees respond well to complete and balanced nutrition programs. Therefore, citrus growers are currently focusing on intensive management of irrigation and nutrition. HLB-affected trees suffer a … Read More

Critical Leaf Nutrient Thresholds to Diagnose Deficiencies in HLB Trees

Tacy CalliesHLB Management, Nutrition

By Arnold Schumann, Laura Waldo, Tripti Vashisth, Alan Wright and Kelly Morgan Huanglongbing (HLB) disease severely impacts the nutrient status of citrus trees, particularly by stunting the feeder roots and causing measurable deficiencies of nutrients in the roots and canopies. Visible symptoms of nutrient deficiencies on citrus foliage are characteristic but not diagnostic of HLB disease. Recent HLB research efforts … Read More

Trees Improving with Good Nutrition

Ernie NeffNutrition

HLB

Many things are improving in Florida citrus groves, and Tripti Vashisth gives most of the credit to constant and balanced fertilization. Vashisth is an assistant professor at the University of Florida Institute of Food and Agricultural Sciences Citrus Research and Education Center in Lake Alfred. “You can see that tree health seems to be improving; growth is improving,” Vashisth said. … Read More

How to Identify and Avoid Nutrient Deficiencies

Ernie NeffNutrition

pests

  Nutrient deficiencies are common in HLB-affected trees, which make up the vast majority of Florida citrus trees. At a recent Citrus Nutrition Day in Bartow, University of Florida Institute of Food and Agricultural Sciences researcher Arnold Schumann discussed ways to identify and avoid nutrient deficiencies. A common identification method for nutrient deficiencies is direct observation, “walking through your grove, … Read More

Growers Share Nutrition Successes

Ernie NeffNutrition

At the Dec. 11 Citrus Nutrition Day hosted by the University of Florida Institute of Food and Agricultural Sciences Polk County Extension, two growers shared their experiences with nutrition programs. The citrus growers, James Shinn of Shinn Groves/Tree O’Groves Inc. and Matt Story of the Story Companies, shared their knowledge via video interviews with citrus Extension agent Chris Oswalt. Oswalt … Read More

Citrus Nutrition Day to Include Field Tours

Daniel CooperCitrus, Citrus Health Management Areas, Industry News Release, Nutrition, Research

HLB

This year’s Citrus Nutrition Day — at which growers will learn the latest data about growing the fruit, from the soil up through the plants — is expanding to include tours of field trials. After a morning of updates from University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers, participants may tour field sites at the Peace River … Read More

Some Basics of Good Citrus Nutrition

Ernie NeffNutrition

nutrition

Studies indicate that constant nutrition supplied by controlled-release fertilizer improves citrus yield and fruit quality, says University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) horticulturist Tripti Vashisth. According to Vashisth, studies also show that increased applications of manganese and boron improve fruit quality. “We are seeing improvement when we are increasing the rate of manganese and boron about … Read More

Nutrition and pH Management for HLB

Ernie NeffHLB Management, Nutrition

HLB

At Citrus Expo, University of Florida soil scientist Kelly Morgan said nutrient uptake by HLB-infected trees can be improved by applying the proper amount of nutrition and managing pH. “Those two things go hand-in-hand,” he said. “As you reduce soil pH below 7, you increase the uptake of most nutrients. So we need to reduce our pH. Our pH has … Read More

What You Need to Know About Citrus Fertigation

Tacy CalliesIrrigation, Nutrition

By Mongi Zekri, Davie Kadyampakeni, Tripti Vashisth, Kelly Morgan, Tom Obreza and Brian Boman Microirrigation is an important component of citrus production systems in Florida. For citrus trees, microirrigation is more desirable than other irrigation methods for several reasons: water conservation, fertilizer management efficiency and freeze protection. Research has shown that when properly managed, water savings with microirrigation systems can … Read More

Nutrient Recommendations for Citrus Greening

Daniel CooperCitrus Greening, Industry News Release, Irrigation, Nutrition, Research

HLB

As Florida citrus growers look to recover from the damages of Hurricane Irma and continue to cope with citrus greening, University of Florida (UF) scientists suggest using a complete and balanced nutrient program in their groves. “Mineral nutrition plays a vital physiological role in the growth and development of a plant and as well as in plant-defense response,” said Tripti … Read More

HLB Alters Nutrition Needs

Ernie NeffHLB Management, Nutrition

pests

Yield and fruit size are not good measurements of the nutrition needs of HLB-affected trees, University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) researchers have discovered. “So we decided to go with something that’s fruit independent for the study,” says UF/IFAS scientist Arnold Schumann of the Citrus Research and Education Center at Lake Alfred. Schumann says he and … Read More

Beck Brothers Win 4R Advocate Award

Abbey TaylorNutrition

Beck Brothers Citrus of Winter Garden, Florida, is one of five winners of the Fertilizer Institute’s 4R Advocate Award for 2018. The company is the third winner from Florida and the first citrus grower to receive this national award. Beck Brothers was recognized for implementing 4R fertilizer management practices on the farm to increase production and reduce environmental impact. 4R … Read More

Nutrition and HLB

Ernie NeffHLB Management, Nutrition

morgan

University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) professor Kelly Morgan discusses the importance of nutrient leaf concentrations in HLB-infected citrus trees. “The leaf concentration (of nutrients) is reduced in all HLB trees,” he says. “We’ve known that for a long time, since HLB was found in Florida.” Morgan, who works at the Southwest Florida Research and Education … Read More

Spoon-Feeding Nutrition and Protecting New Flush for HLB

Ernie NeffHLB Management, Nutrition

Research

Spoon-feeding nutrients through root systems and protecting new leaf flushes are among ways Jude Grosser believes growers can maintain tree health in the face of HLB. Grosser, a University of Florida Institute of Food and Agricultural Sciences professor, is best known as a citrus breeder. Grosser said he started working with nutrition because “like any grower, I don’t like to … Read More

Foliar Nutrition Research Update

Tacy CalliesNutrition

By Rhuanito S. Ferrarezi, Alan L. Wright, Kelly T. Morgan, Philip A. Stansly, Monica Ozores-Hampton and Robert Ebel Huanglongbing (HLB) or citrus greening is endemic in Florida, resulting in billions of dollars of losses since the state’s first detection in 2005. The disease induces visual symptoms in leaves and branches, while severely impacting citrus fruit yield and quality. Fibrous root … Read More

Living with Yellow Dragon Disease

Tacy CalliesHLB Management, Nutrition

A grower nutrition survey reveals production practices for successful HLB management. By Tripti Vashisth and Christopher Vincent These days, in nearly every conversation about HLB, mineral nutrition comes up in some way. It seems that in a conversation between three people, there will be about four opinions on what, why, where and how to provide nutrition to citrus trees in … Read More

Water and Nutrient Tips for HLB

Ernie NeffHLB Management, Irrigation, Nutrition

crisp

  University of Florida Institute of Food and Agricultural Sciences researcher Davie Kadyampakeni offers water and nutrient management tips for HLB-affected trees. He was a presenter at a recent citrus nutrient management seminar in Immokalee hosted by multi-county citrus Extension agent Mongi Zekri. The seminar drew approximately 60 people to the Southwest Florida Research and Education Center. Kadyampakeni’s tips include … Read More

Pruning and Controlled-Release Fertilizer to Rehabilitate HLB Trees

Tacy CalliesNutrition, Production

By Tripti Vashisth and Troy Gainey Pruning is one of the oldest horticultural practices that changes the form and growth of a tree. The pruning process 1) adjusts tree shape and the ratio of framework to fruit-bearing shell of the canopy, 2) alters the shoot/root ratio and 3) changes the carbohydrate (food storage) status of the tree. Under Florida weather … Read More

Growers Focus on Constant Fertilization

Ernie NeffNutrition

nutrition

A grower survey conducted by University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) horticulturist Tripti Vashisth shows growers are managing their nutrition programs precisely. Vashisth discusses growers’ focus on providing a constant supply of nutrients, the amount of nutrients applied, use of humic and fulvic acids, and the number of psyllid sprays applied. “Their (growers’) philosophy for fertilization … Read More

Seniors May Reduce Dementia Risk with Citrus

Len WilcoxNutrition

Eat citrus to prevent dementia? A new study published in the British Journal of Nutrition suggests just that. It shows that older people who frequently eat citrus fruit were 23 percent less likely to get dementia. The study was also reported by the American Association of Retired Persons (AARP) on its Brain Health and Wellness website. The study was conducted on more than … Read More