Below you'll see everything we could locate for your search of “soil amendments”
By Tripti Vashisth and Taylor Livingston Florida is currently experiencing one of the most severe droughts in the past 25 years, putting HLB-affected trees under intense water stress. With Florida’s well-draining sandy soils and increased water demand in HLB-affected trees, growers are in a difficult position trying to maintain adequate tree hydration. Soil amendments, such as biochar and compost, can …
By Davie Kadyampakeni, Tripti Vashisth and Duplicate Sambani The University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) conducted an experiment for four and a half years to determine effects of soil amendments on soil pH. The impacts of fulvic acid, humic acid and sulfuric acid with and without elemental sulfur were compared. Canopy size, fruit yield, fruit quality, …
By Ute Albrecht, Ankit Pokhrel, Sarah Strauss and Ramdas Kanissery The soils in most Florida citrus production areas are sandy. They have less than 1% organic matter and a low cation exchange capacity (CEC). This makes them prone to nutrient leaching, especially after heavy rainfall events in the summer. HUMIC SUBSTANCESOne way to improve soils is by amending them with …
Approximately 40 people trekked into a Premier Citrus Management grove in Saint Lucie County on December 6 to learn that microbial soil amendments haven’t increased yields in an HLB-infected grove. Daniel Bott, Premier Citrus division manager for approximately 5,000 acres, including the trial site off Indrio Road, comments on the results. “There seems to be some differentiation between the products,” …
By Kelly T. Morgan and Davie Kadyampakeni Most information provided in the 2020 3rd edition of Nutrition of Florida Citrus Trees is still sound for healthy citrus trees under Florida production conditions. Past information on nutrients, application methods, leaf and soil sampling, and irrigation scheduling are also effective for management of huanglongbing (HLB)-affected trees. However, research conducted since HLB was …
Column sponsored by the Citrus Research and Development Foundation This article addresses the idea that beneficial, naturally occurring soil- and root-based bacteria might aid in the management of HLB. The background for field trials described below is work by Nian Wang of the University of Florida Institute of Food and Agricultural Sciences, funded in part by the Citrus Research and …
By Tripti Vashisth, Taylor Livingston and Abhishek Neupane Florida citrus production occurs predominantly on sandy soils that are inherently low in organic matter and possess limited water- and nutrient-holding capacity. These soil constraints have become increasingly important in the era of huanglongbing (HLB), where compromised root systems reduce the tree’s ability to efficiently acquire water and nutrients. As a result, …
By Jamie D. Burrow, Taylor Livingston and Tripti Vashisth Before huanglongbing (HLB), citrus grew well in Florida because of the climate and sandy soil. Trees had strong structural roots and a wealth of feeder roots. Since the continued tree decline caused by HLB, root systems have become smaller and weaker. By improving the physio-chemical properties of the sandy soil, it …
Florida’s soils present unique challenges for growers. The soils vary widely from nutrient-poor sandy to highly organic soils, depending on location. These conditions make it difficult to sustainably manage agriculture in a way that supports food production, environmental health and a strong economy. To address these challenges, University of Florida (UF) researchers are leading a four-year study supported by a $749,999 …
A new study examines the critical role soil pH plays in determining citrus root development, nutrient absorption and overall tree health. It offers insights for growers facing declining production challenges due to biotic restraints such as HLB disease and abiotic stresses such as low or high soil pH. The study looks at citrus root morphology across a range of soil …
By Sarah Strauss, Emma Dawson, Gabriel Pugina, Ute Albrecht, Jonas Pereira de Souza Junior and Davie Kadyampakeni While soil health has always been considered critical for Florida citrus production, it has increased in importance with the endemic presence of citrus greening (HLB). Soil health is similar to the concepts of soil quality or soil fertility but with an additional focus …
By Chris Oswalt Soil pH influences nutrient availability. This article considers the specific fate of nitrogen, phosphorus and potassium in soils with elevated pH values. The discussion also assumes that these effects would be similar to conditions in the wetted zone where micro-sprinkler irrigation has raised soil pH. NITROGEN Soil pH can affect several reactions involving nitrogen in the soil …
By Ramdas Kanissery and Mahesh Bashyal Using compost and soil amendments is beneficial to Florida citrus groves. Florida soils are sandy and have a low organic matter and cation exchange capacity. Adding compost and organic amendments (e.g., humic acid) can enhance the soil’s ability to retain water and nutrients. These practices can also boost soil microbial activity and improve soil …
By Lorenzo Rossi With no cure for HLB available, searching for alternative mitigation strategies is an urgent priority for a sustainable citrus industry. Interest has grown regarding the use of organic amendments to improve the fertility of Florida native soils. Although hardwood mulch applications have been demonstrated to improve both tree health and soil fertility in other fruit industries, little …
Florida citrus growers are facing a rising mound of challenges these days. With citrus greening disease (HLB) devastating groves, low supply, soaring fertilizer prices and a substantial increase in overall production costs, the current odds are stacked high against citrus growers. This is an industry in crisis. Fortunately, science is catching up with new solutions to combat these urgent issues. …
By Lukas M. Hallman, John M. Santiago and Lorenzo Rossi At first glance, one may not see how oak trees relate to citrus production. But in the early 2010s, growers and scientists reported seeing little to no HLB symptoms on citrus growing underneath the dripline of oak trees compared to citrus trees nearby but not directly under oak trees. These …
By Brandon White This time of year is the end of the peak nutrient demand for citrus trees. Regardless of the types of fertilizer or inputs applied in the groves, trees have been taking up nutrients while growing in full tilt during the spring season. One of the greatest factors determining how well trees take up nutrients is soil pH. …
University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus researchers are collaborating on ground-breaking research projects to fight against HLB. They are working with researchers at the University of California-Riverside (UC-Riverside), Texas A&M and Washington State University on a project to field-test new citrus cultivars for tolerance or resistance to HLB. The research is funded by the U.S. …
By Ronald G. Doetch I am a lifelong farmer/agronomist and, at the age of 73, have worked with many different crops through the many changes in agriculture challenges and production practices. I moved to Florida four years ago to grow a few oranges and have a firsthand look and understanding of the relationship of soil health to tree decline and …
By Jamie D. Burrow and Tripti Vashisth Florida citrus production continues to change, and staying up to date is vital. The Citrus & Specialty Crop Expo seminars are an opportunity for growers to hear the latest updates from University of Florida Institute of Food and Agricultural Sciences (UF/IFAS) citrus researchers. A mix of panel discussions and presentations is scheduled to …
