scholarly journals Soils & Fertilizers for Master Gardeners: Soil Organic Matter and Organic Amendments

EDIS ◽  
2009 ◽  
Vol 2009 (1) ◽  
Author(s):  
Gurpal S. Toor ◽  
Amy L. Shober
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Organic Amendments ◽  
Fact Sheet ◽  
Water Science ◽  
Soil And Water

Revised! SL-273, a 3-page illustrated fact sheet by Gurpal S. Toor and Amy L. Shober, educates homeowners about the importance of soil organic matter and provides suggestions about how to build the organic matter in garden and landscape soils. It is part of a series entitled Soils and Fertilizers for Master Gardeners. Includes references. Published by the UF Department of Soil and Water Science, January 2009. SL273/MG454: Soils and Fertilizers for Master Gardeners: Soil Organic Matter and Organic Amendments (ufl.edu)

scholarly journals Micronutrient Deficiencies in Citrus: Iron, Zinc, and Manganese

EDIS ◽  
1969 ◽  
Vol 2003 (2) ◽  
Author(s):  
Mongi Zekri ◽  
Thomas A. Obreza
Keyword(s):  
Cooperative Extension ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
Science Department ◽  
Micronutrient Deficiencies ◽  
University Of Florida ◽  
Fact Sheet ◽  
Agricultural Sciences ◽  
Water Science ◽  
Soil And Water

This document is SL 204, a fact sheet of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First printed: January 2003. SL 204/SS423: Micronutrient Deficiencies in Citrus: Iron, Zinc, and Manganese (ufl.edu)

scholarly journals Macronutrient Deficiencies in Citrus: Nitrogen, Phosphorus, and Potassium

EDIS ◽  
1969 ◽  
Vol 2003 (2) ◽  
Author(s):  
Mongi Zekri ◽  
Thomas A. Obreza
Keyword(s):  
Cooperative Extension ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
Science Department ◽  
University Of Florida ◽  
Fact Sheet ◽  
Water Science ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus ◽  
Soil And Water

This document is SL 201, a fact sheet of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First printed: January 2003. SL 201/SS420: Macronutrient Deficiencies in Citrus: Nitrogen, Phosphorus, and Potassium (ufl.edu)

scholarly journals Micronutrient Deficiencies in Citrus: Boron, Copper, and Molybdenum

EDIS ◽  
1969 ◽  
Vol 2003 (2) ◽  
Author(s):  
Mongi Zekri ◽  
Thomas A. Obreza
Keyword(s):  
Cooperative Extension ◽  
Cooperative Extension Service ◽  
Extension Service ◽  
Science Department ◽  
Micronutrient Deficiencies ◽  
University Of Florida ◽  
Fact Sheet ◽  
Agricultural Sciences ◽  
Water Science ◽  
Soil And Water

This document is SL 203, a fact sheet of the Soil and Water Science Department, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First printed: January 2003. SL 203/SS422: Micronutrient Deficiencies in Citrus: Boron, Copper, and Molybdenum (ufl.edu)

Direct effects of soil organic matter on productivity mirror those observed with organic amendments

2017 ◽  
Vol 423 (1-2) ◽  
pp. 363-373 ◽  
Author(s):  
Emily E. Oldfield ◽  
Stephen A. Wood ◽  
Mark A. Bradford
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Organic Amendments ◽  
Direct Effects

Fe(II)-catalyzed transformation of Fe (hydr)oxides in particle-size soil organic matter fractions from amended agricultural soils

2020 ◽  
Author(s):  
Beatrice Giannetta ◽  
Ramona Balint ◽  
Daniel Said-Pullicino ◽  
César Plaza ◽  
Maria Martin ◽  
...  
Keyword(s):  
Particle Size ◽  
Organic Matter ◽  
Soil Organic Matter ◽  
Agricultural Soils ◽  
Solid Phase ◽  
Organic Amendments ◽  
Fine Sand ◽  
Organic C ◽  
Amended Soils ◽  
Mineral Transformations

<p>Redox-driven changes in Fe crystallinity and speciation may affect soil organic matter (SOM) stabilization and carbon (C) turnover, with consequent influence on global terrestrial soil organic carbon (SOC) cycling.<span> </span>Under reducing conditions, increasing concentrations of Fe(II) released in solution from the reductive dissolution of Fe (hydr)oxides may accelerate ferrihydrite transformation, although our understanding of the influence of SOM on these transformations is still lacking.<span> </span></p><p>Here, we evaluated abiotic Fe(II)-catalyzed mineralogical changes in Fe (hydr)oxides in bulk soils and size-fractionated SOM pools (for comparison, fine silt plus clay, FSi+Cl, and fine sand, FSa) of an agricultural soil, unamended or amended with biochar, municipal solid waste compost, and a combination of both.<span> </span></p><p>FSa fractions showed the most significant Fe(II)-catalyzed ferrihydrite transformations with the consequent production of well-ordered Fe oxides irrespective of soil amendment, with the only exception being the compost-amended soils. In contrast, poorly crystalline ferrihydrite still constituted <em>ca. </em>45% of the FSi+Cl fractions of amended soils, confirming the that the higher SOM content in this fraction inhibits atom exchange between aqueous Fe(II) and the solid phase. Building on our knowledge of Fe(II)-catalyzed mineralogical changes in simple systems, our results evidenced that the mechanisms of abiotic Fe mineral transformations in bulk soils depend on Fe mineralogy, organic C content and quality, and organo-mineral associations that exist across particle-size SOM pools. Our results underline that in the fine fractions the increase in SOM due to organic amendments can contribute to limiting abiotic Fe(II)-catalyzed ferrihydrite transformation, while coarser particle-size fractions represent an understudied pool of SOM subjected to Fe mineral transformations.<span> </span></p>

scholarly journals Salmonella and tomatoes: Q & A for consumers

EDIS ◽  
2008 ◽  
Vol 2008 (5) ◽  
Author(s):  
Max Teplitski ◽  
Keith Schneider ◽  
Michelle Danyluk
Keyword(s):  
Fruits And Vegetables ◽  
Fact Sheet ◽  
Recent Outbreak ◽  
Water Science ◽  
Soil And Water

SL-263, a 6-page fact sheet by Max Teplitski, Keith Schneider, and Michelle Danyluk, provides research-supported answers to common consumer questions about the safety of fresh fruits and vegetables in response to the recent outbreak of salmonellosis linked to the consumption of tomatoes. Includes references. Published by the UF Department of Soil and Water Science, June 2008.

scholarly journals Magnesium (Mg) for Citrus Trees

EDIS ◽  
2013 ◽  
Vol 2013 (6) ◽  
Author(s):  
Mongi Zekri ◽  
Tom Obreza
Keyword(s):  
Magnesium Deficiency ◽  
Mg Deficiency ◽  
Fact Sheet ◽  
Deficiency Symptoms ◽  
Mature Leaves ◽  
Citrus Production ◽  
Water Science ◽  
Soil And Water ◽  
Leaf Symptoms ◽  
Citrus Trees

Magnesium deficiency has been a major problem in citrus production. In Florida, Mg deficiency is commonly referred to as “bronzing.” Trees with inadequate Mg may have no symptoms in the spring growth flush, but leaf symptoms develop as the leaves age and the fruit expand and mature in the summer and fall. Magnesium deficiency symptoms occur on mature leaves following the removal of Mg to satisfy fruit requirements. This 4-page fact sheet was written by Mongi Zekri and Tom Obreza and published by the UF Department of Soil and Water Science, July 2013. http://edis.ifas.ufl.edu/ss582

scholarly journals The Fate of Glyphosate in Soil and Water: A Review

2021 ◽  
Vol 7 (SpecialIssue) ◽  
pp. 389-399
Author(s):  
Suwardji Suwardji ◽  
‪I Made Sudantha
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Phosphate Adsorption ◽  
Suspended Material ◽  
Soil Sediment ◽  
Soils And Sediments ◽  
Soil Evidence ◽  
Soil Constituents ◽  
Soil And Water

The fate of glyphosate in soil and water is dependent on the properties of glyphosate and its envoronement. Behaviour of glyphosate in soil, sediment and water is strongly influenced the way by which it can be adsorbed by soils, sediments, and suspended material in water. The role of soil organic matter, clay mineral, and amorphous minerals on the adsorption of glyphosate depends primarily on the nature and properties of the soil itself and the properties of glyphosate. Environmental factors have some influence on sorption and degradation of glyphosate. Glyphosate is rapidly inactivated in soil, is in part due to adsorption. Some soil properties have been identified strongly influence adsorption of glyphosate, such as clay minerals, composition of cations in exchangeable site of clay and organic matter, unoccupied phosphate adsorption site, degree of humification, and soil pH. Adsorption limits the availability of glyposate for microbial degradation. The sorbed glyphosate is not directly available to microorganisms in soil. Evidence also suggests that not only a strongly sorbed compound such as paraquat but also weakly sorbed compounds such as flumetsulam and picloram can persist for long periods when they are sorbed by soil constituents. This suggests that the interaction between sorption and biodegradation should be considered in predicting the fate of pesticides in soils and sediments.

scholarly journals Development of Bahiagrass Fertilization Recommendations: 1990-2008

EDIS ◽  
2009 ◽  
Vol 2009 (3) ◽  
Author(s):  
Edward A. Hanlon ◽  
Rao Mylavarapu ◽  
Cheryl L. Mackowiak ◽  
Maria L. Silveira
Keyword(s):  
Work Groups ◽  
Fact Sheet ◽  
Water Science ◽  
Soil And Water

Revised! SL-237, a 15-page fact sheet by E.A. Hanlon, Rao Mylavarapu, C.L. Mackowiak, and M.L. Silveira, records changes in UF/IFAS’ bahiagrass fertilization and liming recommendations from 1990 through 2008 and summarizes efforts of the various work groups and committees. Includes references. Published by the UF Department of Soil and Water Science, January 2006. Revised August 2008 and April 2009.  SL-237/SS456: Development of Bahiagrass Fertilization Recommendations: 1990–2008 (ufl.edu)

scholarly journals Benefits of Cover Crops for Soil Health

EDIS ◽  
2007 ◽  
Vol 2007 (20) ◽  
Author(s):  
Yoana C. Newman ◽  
David L. Wright ◽  
Cheryl Mackowiak ◽  
J.M.S. Scholberg ◽  
C. M. Cherr
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Weed Control ◽  
Cover Crops ◽  
Agricultural Production ◽  
Cover Crop ◽  
Soil Health ◽  
Nutrient Release ◽  
Fact Sheet ◽  
Residue Incorporation

SS-AGR-272, a 4-page fact sheet by Y.C. Newman, D.W. Wright, C. Mackowiak, J.M.S. Scholberg and C.M. Cherr, discusses the benefits of cover crops in agricultural production, the benefits of soil organic matter; how to match cover crop nutrient release with future crop demand; timing and depth of residue incorporation; and erosion, pest and weed control. Includes references. Published by the UF Department of Agronomy, November 2007. SS AGR 272/AG277: Benefits of Cover Crops for Soil Health (ufl.edu)

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