Seasonal Changes in Nutrient Availability for Sulfur-Amended Everglades Soils Under Sugarcane

Ye, Rongzhong; Wright, Alan L.; McCray, J. Mabry

doi:10.1080/01904167.2011.618571

Cited by 13 publications

(12 citation statements)

References 32 publications

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“…Plant-available P concentrations in the soil were determined using the ascorbic acid-molybdenum blue method, after shaking 4 ml air-dried soil samples with 50 ml of extractant for 50 min, followed by filtering through a Whatman No. 2 filter paper (Whatman plc, Springfield Mill, James Whatman Way, Maidstone, Kent ME14 2LE, UK) (Ye et al 2011). Water-extractable P tests revealed 3.0 to 4.0 mg L 21 of P in both years, which is considered low levels for lettuce production (Hochmuth et al 1994).…”

Section: Methodsmentioning

confidence: 99%

Phosphorus Application Influences the Critical Period of Weed Control in Lettuce

Odero

Wright

2013

Weed sci.

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Field studies were conducted in 2010 and 2011 at Belle Glade, FL, to evaluate the influence of phosphorus (P) applications (98, 196, and 293 kg P ha−1) on the critical period of weed control (CPWC) in lettuce. Natural populations of mixed weed species were allowed to interfere with lettuce in a series of treatments of both increasing duration of weed interference and the duration of weed-free period imposed within 98, 196, and 293 kg P ha−1levels added to the soil. The beginning and end of the CPWC for each P fertilization level based on a 5% acceptable marketable fresh lettuce yield loss level was determined by fitting log-logistic and Gompertz models to represent the increasing duration of weed interference and the duration of weed-free period, respectively. The CPWC in lettuce was estimated to be 4.6, 3.4, and 2.3 wk at 98, 196, and 293 kg P ha−1, respectively. The beginning of the CPWC was delayed at the highest P fertilization level (293 kg P ha−1), whereas the end of the CPWC was hastened at the same P fertilization level. Our study shows that inadequate levels of P fertilization in lettuce result in the need for more-intensive weed management practices to attain acceptable yields.

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Section: Methodsmentioning

confidence: 99%

Phosphorus Application Influences the Critical Period of Weed Control in Lettuce

Odero

Wright

2013

Weed sci.

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“…The availability of essential nutrients affects the yield and yield components of crops [67]. The major source of plant nutrients depends on soil and organic fertilizer features.…”

Section: Maize Nutrients Concentrations and Uptake At Harvestmentioning

confidence: 99%

Efficiency of Rice Husk Biochar with Poultry Litter Co-Composts in Oxisols for Improving Soil Physico-Chemical Properties and Enhancing Maize Performance

et al. 2021

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Efficient use of co-composted organic manure with biochar is one of the sustainable management practices in an agriculture system to increase soil fertility and crop yield. The objectives of this research are to evaluate the use of co-composted biochar, biochar in formulation with poultry litter (PL), and PL compost on soil properties and maize growth. Organic amendments were applied at 10 Mg ha−1, and synthetic fertilizer was applied at the recommended rate of maize (N: P2O5: K2O at 60:60:40 kg ha−1). The results showed that addition of organic amendment significantly increased the total biomass parameter compared to the control, which ranged from 23.2% to 988.5%. The pure biochar treatment yielded lower biomass than the control by 27.1%, which was attributed to its low nutrient content. Consequently, the application of the co-composted biochar achieved higher plant height and aerial portion, which ranged from 46.86% to 25.74% and 7.8% to 108.2%, respectively, in comparison to the recommended fertilizer rate. In addition, the soil amended with co-composted biochar had a significant increase in soil organic matter and had significantly higher chlorophyll and nutrient concentrations in plants, which increased with an increase in the biochar ratio of the co-composts. This was probably attributed to the release of the nutrients retained during composting, thereby possibly making the co-composted biochar act as a slow-release fertilizer. In conclusion, the addition of organic manure with biochar enhanced the nutrient supply by gradual release in comparison to the mineral fertilizer.

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Section: Availability Of Selected Elements In Soilsmentioning

confidence: 99%

“…Total element content in soil is not a suitable indicator of their bioavailability [52,53]. In a soil environment, elements occur in water soluble, exchangeable, and non-exchangeable fractions [52]. Elements existing as soluble components in the soil solution and which are readily solubilized or desorbed, considered as readily available for crop uptake, constitute only a part of the total element content in the environment [54].…”

Section: Availability Of Selected Elements In Soilsmentioning

confidence: 99%

“…Extraction strength of the used reagents influences the amounts of eluted elements [52,54,55,63]. At the same time, soil properties, especially the content of clay, organic carbon, oxides of iron, manganese and aluminum, as well as pH and cation exchange capacity, also influence the extraction of elements [63].…”

Section: Availability Of Selected Elements In Soilsmentioning

confidence: 99%

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The Effect of Amending Soil with Waste Elemental Sulfur on the Availability of Selected Macroelements and Heavy Metals

et al. 2020

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Elemental sulfur of waste origin may be a valuable sulfur source for plants. However, assessing the suitability of environmental use of a waste material should confirm there is no harmful effect of the material on soil environment. The purpose of the incubation experiment was to assess the availability of selected elements (P, K, Ca, Mg, Fe, Mn, Zn, Cu, Cr, Ni, Pb, Cd) in soils supplemented with waste elemental sulfur. The research was conducted on two soils: light and heavy, and with three sulfur doses applied to each soil. Available forms of elements in the soils were extracted 60 days after the waste introduction, with three reagents: 0.01 mol L−1 CaCl2, Mehlich 3 and 1 mol L−1 HCl. Additionally, to determine the impact of the introduced sulfur on soil acidification, soil pH was periodically checked during the experiment. The sulfur addition intensified acidification of the light soil, and, to a lesser extent, of the heavy soil. The acidifying effect was stronger when the sulfur dose was higher. The content of available forms of elements in the soils depended mainly on the strength of the used extractants (generally, the highest amounts were extracted with 1 mol L−1 HCl and the lowest with 0.01 mol L−1 CaCl2). The effect of sulfur introduction on element availability was small. No harmful effect on element availability in soils was stated.

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Seasonal Changes in Nutrient Availability for Sulfur-Amended Everglades Soils Under Sugarcane

Cited by 13 publications

References 32 publications

Phosphorus Application Influences the Critical Period of Weed Control in Lettuce

Phosphorus Application Influences the Critical Period of Weed Control in Lettuce

Efficiency of Rice Husk Biochar with Poultry Litter Co-Composts in Oxisols for Improving Soil Physico-Chemical Properties and Enhancing Maize Performance

The Effect of Amending Soil with Waste Elemental Sulfur on the Availability of Selected Macroelements and Heavy Metals

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