Use of dolomite phosphate rock (DPR) fertilizers to reduce phosphorus leaching from sandy soil

Chen, G.C.; He, Zhenli; Stoffella, P. J.; Yang, Xin; Yu, Shixiao; Calvert, D. V.

doi:10.1016/j.envpol.2004.12.016

Cited by 41 publications

(18 citation statements)

References 25 publications

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“…Chen et al (2006) showed that N-Viro-based dolomite phosphate rock (DPR) fertilizers appeared to leach lower amounts of phosphorus compared to water-soluble P fertilizer due to its slow release nature. On average, less than 1% of the total applied P was leached from soils amended with the DPR fertilizers, whereas 96.6% was leached from water-soluble fertilizer.…”

Section: Irrigation With Fertilizermentioning

confidence: 98%

Sources of nutrients impacting surface waters in Florida: A review

Badruzzaman

Pinzon²,

Oppenheimer

et al. 2012

Journal of Environmental Management

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Section: Irrigation With Fertilizermentioning

confidence: 98%

Sources of nutrients impacting surface waters in Florida: A review

Badruzzaman

Pinzon²,

Oppenheimer

et al. 2012

Journal of Environmental Management

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“…Shan et al (2005) found only 0.07-0.11 kg P ha -1 were lost as leachate to 70 cm depth when 60 kg P ha -1 was applied in silty sandy clay loam and silty sandy loam soils. Chen et al (2006) found that 62-98% of total P leaching occurred in the first three events in a column experiment with inorganic P and organic P application with leachate collected weekly. At very high P application rates of 56 and 224 kg P ha -1 , Elliott et al (2002) reported that 12 and 75 kg P ha -1 were lost from sandy soil to 40 cm depth when applied as triple superphosphate while 3-11 kg P ha -1 was lost from chicken manure applied at the same rates.…”

Section: Leaching Losses Of Npkmentioning

confidence: 98%

Fertiliser strategies for improved nutrient use efficiency on sandy soils in high rainfall regimes

Sitthaphanit

Limpinuntana

Toomsan

et al. 2009

Nutr Cycl Agroecosyst

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Fertiliser application strategies for maize (Zea mays L.) production on sandy soils under high rainfall regimes need to be carefully designed to minimise nutrient losses through leaching and maximise crop yield. Experiments were conducted to determine N, P, and K leaching in sandy soils with 3-6% clay in surface layers under maize production, and the effectiveness of different N, P, and K fertiliser timing and splitting strategies on leaching of N, P, and K and on maize yield. In a column experiment on an Oxic Paleustult (Korat series) with 3% clay, leaching of N, P, and K from fertiliser (114N-17P-22K in kg ha -1 ) was significant under simulated rainfall, but decreased to negligible levels with 3-5 split applications of fertiliser. Maize N and K uptake increased with 3-5 split applications, but not P uptake. Despite continued intense rainfall and further fertilizer additions, leaching was not recorded after day 30, and this was attributed to the effect of plant water uptake on reducing deep drainage. Split applications of fertilizer maintained NP and K in the 0-30 cm layer during 30-60 days when maize nutrient demand was likely to be at its highest, while in the recommended fertilizer regime NPK in the surface layers declined after 30 days. In a field experiment on an Oxic Paleustult (Korat series) with 6% clay, 3-4 splits of fertiliser increased N and K uptake and increased maize yields from 3.3 to 4.5 Mg ha -1 . Postponing basal fertiliser application from pre-planting to 7-15 days after emergence increased uptake of N, P, and K and grain yield emphasising the greater risk of nutrient losses from fertiliser applied at planting than later. Strategies designed to reduce the amount of nutrients applied as fertiliser at planting, such as split application and postponing basal application can decrease the risk of leaching of N, P, and K from fertiliser and improve nutrient use efficiency, and grain yield of maize on sandy soils under high growing season rainfall regimes.

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“…Carbonates are salts of carbonic acid and occur in the form of minerals and rocks commonly found in nature. Especially alkaline earth metal carbonates (Ca 2+ and Mg 2+ ) are very widely used in many productions and industrial processes in various industries like construction [1], food [2], metallurgy [3], treatment of contaminated water and soil [4,5], and fertilizers [6]. Calcium carbonate CaCO 3 (limestone) occurs in many crystalline modi cations (calcite, aragonite, alabaster, travertine, marble).…”

Section: Introductionmentioning

confidence: 99%

Buffering and Antibacterial Properties of Cotton Canvas with Dolomite/ZnO-Styrene-Acrylic Complex Coating and their Comparison with Properties after the Accelerated Aging

Křížová¹,

Tuček²,

Neoralová³

et al. 2017

TEK

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In this study, we report evaluation of buff ering and self-sterilizing coating complex obtained by dolomite and zinc oxide particles incorporation into styrene-acrylic layer applied to cotton fabric. Surface properties of the coating were evaluated by SEM, EDS and 3D optical microscopy. Antimicrobial properties were determined using a mixture of G+ and G-bacteria (Escherichia coli, Staphylococcus epidermidis and Streptococcus mutans) that was in dynamic contact with canvases for 4-100 hours. Alkalizing -buff er capacity of the surface layer supplied to the system by dolomite was tested by the addition of acetic acid. All these properties were simultaneously tested on the same canvases that have been previously exposed to the so-called hot (105 °C) and wet aging (80 °C, 65% relative humidity). The aging was provided in the climatic test room for 144 hours and the properties of canvases before and after aging were compared and evaluated.

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Use of dolomite phosphate rock (DPR) fertilizers to reduce phosphorus leaching from sandy soil

Cited by 41 publications

References 25 publications

Sources of nutrients impacting surface waters in Florida: A review

Sources of nutrients impacting surface waters in Florida: A review

Fertiliser strategies for improved nutrient use efficiency on sandy soils in high rainfall regimes

Buffering and Antibacterial Properties of Cotton Canvas with Dolomite/ZnO-Styrene-Acrylic Complex Coating and their Comparison with Properties after the Accelerated Aging

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