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Below you'll see everything we could locate for your search of “fertilizer rate”
By Mongi Zekri, Robert E. Rouse, and Jonathan H. Crane Each year, growers look forward to the rainy season because it helps their young trees grow fast and their mature trees produce good crops. Growers hope for good distribution of rains following the usual dry spring season. However, along with the anticipation of the rainy season, there is also the …
A University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) official announced at Citrus Expo that UF/IFAS will fund “starter kits” for nutrient sampling. Citrus Research and Education Center (CREC) Director Michael Rogers says the kits will allow for leaf and soil sampling in a 20-acre block for a year. Growers can get the starter kits at meetings slated …
The 2019 hurricane season is well underway. Florida’s citrus industry hasn’t been threatened yet, but several months of the season remain. Multi-county citrus Extension agent Chris Oswalt suggests that growers be prepared for the possibility of a hurricane. “Have a plan; work that plan,” he says. Oswalt offers several ways growers can be prepared for a severe storm. “If you …
Protecting soil and water while using pesticides By Laurie A. Hurner Editor’s note: This article grants one continuing education unit (CEU) in the Core category toward the renewal of a Florida Department of Agriculture and Consumer Services restricted-use pesticide license when the accompanying test is submitted and approved. Pesticides, pesticides, pesticides. It seems that the word pesticide has become quite …
By Ramdas Kanissery, Camille McAvoy and Mongi Zekri Some weeds are more difficult to manage in the production system than others due to their ability to grow in an available niche. If given a chance to establish, Guinea grass and goatweed can be the two most difficult weeds to manage. This is not just because they both are prolific seed …
University of Florida Institute of Food and Agricultural Sciences researcher Rhuanito “Johnny” Ferrarezi reports on research leading to fertilizer recommendations for grapefruit, especially in the Indian River area. Grapefruit has been especially hard hit by HLB, the devastating citrus disease discovered in Florida in 2005. “We are entering the second season (of the research project) and we hope to have …
Growers of one of Florida’s signature citrus crops may see more production and possibly less of the deadly citrus greening disease. Researchers have worked for four years growing grapefruit under protective screens on a 1-acre experimental plot at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS), and they’re seeing encouraging results. UF/IFAS scientists and a few commercial …
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 …
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 …
By Sarah Strauss, Davie Kadyampakeni, Ramdas Kanissery, Tara Wade, Lauren Diepenbrock and Juanita Popenoe Cover crops are specific crops not intended for sale but for soil improvement and sustainability. They are increasingly common in the agricultural fields of the Midwest and other grain-producing regions because of the wide range of benefits not just for the soil, but also the cash …
By Juanita Popenoe and Lauren Diepenbrock Ed James has citrus in his veins. He has been working and thriving in the citrus business since he was a teenager — from hoeing orange trees to owning a caretaking business that serviced thousands of acres. That is, until about eight years ago. In 2010, James looked around his personal 45-acre citrus grove …
By Lorenzo Rossi, Ute Albrecht and Evan Johnson Citrus root systems are confronted with many challenges that limit resource availability needed for tree productivity. Challenges are compounded by huanglongbing (HLB), which now affects nearly all citrus trees throughout Florida’s production areas. Contrary to the above-ground portion of the tree, study of the below-ground portion is considerably more difficult. This article …
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. …
Coalitions of San Joaquin Valley growers created to help comply with water quality regulations have reached a settlement agreement with the State Water Resources Control Board (SWRCB). The coalitions include the Kaweah Basin Water Quality Association, Tule Basin Water Quality Coalition and Kings River Watershed Coalition Authority. As part of the agreement, the coalitions will install kiosks to ensure safe drinking …
By Brenda Eubanks Burnette Editor’s note: Citrus Industry is pleased to welcome back Pieces of the Past to the pages of the magazine after publishing it on CitrusIndustry.net for the past year. This popular citrus history column returns to the magazine in preparation for Citrus Industry magazine’s 100th anniversary in January 2020. Leading up to the anniversary, each Pieces of …
It’s time to prepare for implementation of the Produce Safety Rule. By Travis Chapin, Michelle Danyluk and Keith Schneider In preparation for implementing the Food Safety Modernization Act’s Produce Safety Rule (PSR), growers, harvesters and packers of fresh citrus are required to attend standardized food-safety training, such as the Produce Safety Alliance (PSA) grower training course, which outlines the minimum …
By Ernie Neff Jerry Mixon’s use of netting to keep birds from blueberries helped pique his interest in growing citrus under protective screen (CUPS) to exclude HLB-spreading psyllids. But he credits University of Florida researcher Arnold Schumann with helping him bring his Polk County CUPS project to fruition. Mixon met Schumann in 2015, the year after Schumann’s 1-acre CUPS was …
By Arnold Schumann, Timothy Ebert, Laura Waldo, Danny Holmes, Napoleon Mariner, Gary Test, Chris Oswalt, Rhuanito Ferrarezi and Ricardo Lesmes Two studies with citrus under protective screen (CUPS) were established at the University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) Citrus Research and Education Center (CREC) and Indian River Research and Education Center (IRREC) in 2013–14. The goal …
Savings in water and fertilizer, along with faster tree growth, can be achieved by using subirrigation in citrus nurseries. University of Florida Institute of Food and Agricultural Sciences researcher Rhuanito (Johnny) Ferrarezi reported on the studies leading to those conclusions at a recent citrus nursery workshop. The event was held at the Citrus Research and Education Center in Lake Alfred, …
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 …
