Resin‐Coated Urea Evaluation for Turfgrass Fertilization

Hummel, N.

doi:10.2134/agronj1989.00021962008100020030x

Cited by 14 publications

(13 citation statements)

References 3 publications

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“…However, the main results presented were generally similar to those reported by others. Hummel (1989) applied 196 kg N ha -1 yr -1 as a single spring application of SCU, and recovered 27% of the applied N in the first year. Hummel and Waddington (1984) also observed more uniform growth and higher N recovery in the clippings from SCU (50%) than from UF (22%).…”

Section: Resultsmentioning

confidence: 99%

Effects of slow-release fertilizers on growth and on uptake and leaching of nutrients in Kentucky bluegrass turfs established on sand-based root zones

Engelsjord¹,

Singh²

1997

Can. J. Plant Sci.

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Engelsjord, M. E. and Singh, B. R. 1997. Effects of slow-release fertilizers on growth and on uptake and leaching of nutrients in Kentucky bluegrass turfs established on sand-based root zones. Can. J. Plant Sci. 77: 433-444. Sports fields constructed on sand-based root zones are generally permeable to water and nutrients, and potential contaminants of the groundwater. This study was conducted to determine the effect of slow-release and water-soluble fertilizers on growth, nutrient uptake and leaching from a sand-based Kentucky bluegrass (Poa pratensis L.) turf. Two root zone mixtures and two N rates were investigated in two independent lysimeter experiments. In the first experiment (1) the 80:20 sand-peat mixture gave better growth and darker-colored turf than the 60:40 sand-peat mixture. Only RC-NPK and water-soluble NPK treatments in this experiment gave acceptable turf quality for the entire growing season. Frequent application with water-soluble fertilizer or spring application with slow-release carriers gave generally <5 mg L -1 NO 3 -N in the leachate. In the second experiment (2) application of 300 or 450 kg N ha -1 (either as spring or spring/summer application) as urea-ammonium-nitrate (UAN) (gel) did not give desirable turf growth during the entire period of investigation. Sulfur-coated urea gave generally better turf quality than UAN, but not as good as biweekly compound NPK fertilization. Irrespective of fertilizer N rate, the leaching losses of N varied from 1.1 to 2.9%, giving average NO 3 -N concentrations in the leachate for all treatments <2 mg L -1 . Sandy soil used for sports turf, and fertilized with SCU and RC-NPK, or frequent and small amounts of water-soluble N carriers, appears not to create any serious environmental concern in southern part of Norway where the rainfall is moderate.Key words: Kentucky bluegrass, leaching, nitrogen, nutrient uptake, sand-based rootzone, slow-release fertilizers Engelsjord, M. E. et Singh, B. R. 1997. Effets d'engrais à libération lente sur la croissance de l'herbe ainsi que sur l'absorption et sur les pertes par délavage des éléments nutritifs dans les pelouses de pâturin du Kentucky installées en sols sableux. Can. J. Plant Sci. 77: 433-444. Les terrains de sport construits sur sols sableux sont généralement perméables à l'eau et aux éléments fertilisants ainsi qu'aux contaminants éventuels de la nappe phréatique. L'objet de nos travaux était de déterminer l'effet des engrais retard et des engrais hydrosolubles sur la croissance du gazon et sur les pertes par délavage des éléments nutritifs dans une pelouse du pâturin du Kentucky (Poa pratensis L.) installée sur sols à dominance sableuse. Deux mélanges de terre de surface et deux doses de fumure N étaient comparés dans deux expériences distinctes en lysimètres. Dans la première expéri-ence (I), le mélange sable-tourbe en proportions 80:20 donnait une meilleure croissance et un gazon plus foncé que le mélange en proportions 60:40. Seuls les traitements au NPK à enrobage de résine et au NPK hydrosoluble per...

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Section: Resultsmentioning

confidence: 99%

Effects of slow-release fertilizers on growth and on uptake and leaching of nutrients in Kentucky bluegrass turfs established on sand-based root zones

Engelsjord¹,

Singh²

1997

Can. J. Plant Sci.

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“…2), it is concluded that the rate of release of N from Meister 270 was too slow to supply the N required by the cotton crop. Hummel (1989) also found that a resin-coated urea with a laboratory release time of 270 days was too slow to meet the N demand of turfgrass. Nitrogen uptake in the Meister 70 treatments was consistently higher, sometimes significantly (P \ 0.05), than that in the Meister 270 treatments.…”

Section: Lint Yields and Nitrogen Uptakementioning

confidence: 99%

Evaluation of a polyolefin coated urea (Meister) as a fertilizer for irrigated cotton

Chen

Freney

Rochester

et al. 2007

Nutr Cycl Agroecosyst

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The effectiveness of two polyolefin coated products, 'Meister 70' and 'Meister 270', as slow-release sources of nitrogen (N) for irrigated cotton, and uncoated calcium carbide as a source of acetylene to inhibit nitrification of urea-N and reduce losses by denitrification were studied. The crop was grown on a grey clay in the Namoi Valley of north western New South Wales. The fertilisers were applied at 50 and 150 kg N/ha, combined factorialy with two application times, either pre-or postsowing. Meister 270 did not release N fast enough to supply the plant's requirements, and is not recommended as a source of N for cotton. Meister 70 was worthy of further study as a pre-sowing source of N because it maintained a higher concentration of ammonium in the soil for longer than urea, resulted in lower soil nitrate concentrations at all times, and increased the apparent recovery efficiency of fertilizer N. The uncoated calcium carbide was not as effective as the wax-coated material tested in previous studies.

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“…Since sampling dates and the number of clippings were different, the results from each year were evaluated separately (12)(13)(14). Analysis of variance and least significant difference (LSD) tests among means were conducted using a statistical analysis system (SAS) statistical analysis package.…”

mentioning

confidence: 99%

Effects of Nitrogen Application Timing on Growth and Quality of a Turfgrass Mixture

Oral

Acikgoz

2001

Journal of Plant Nutrition

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A 3-year field study was conducted to determine the influence of nitrogen (N) application timing on the growth and quality of a turfgrass mixture consisting of perennial ryegrass (Lolium perenne L.), Kentucky bluegrass (Poa pratensis L.), creeping red fescue (Festuca rubra var. rubra L.), and chewings fescue (Festuca rubra var. commutata Gaud.) under irrigated conditions. Nitrogen was applied annually at the rate of 30 g m −2 year −1 , with six application regimes: control ( no N), single spring (30 g m −2 ), single fall (30 g m −2 ), spring + fall (15 + 15 g m −2 ), spring + summer + fall (10 + 10 + 10 g m −2 ), and monthly from April through September (5 g m −2 ).Color, turf quality, clipping weights, and shoot density were correlated with fertilizer rates and application timing in this study. Fertilization monthly or every 2 months resulted in more uniform color and turf quality and less clipping weights than with comparable heavy spring and fall fertilizations. Heavy N applications in the fall did not cause winter injury and produced significantly darker * Address correspondence to Esvet Acikgoz. ORDER REPRINTS 102ORAL AND ACIKGOZ color and more uniform appearance in early spring than other N applications. All N-fertilization regimes increased shoot density, but spring fertilization stimulated density the most. Nitrogen applied monthly or every 2 months was enough to enhance the color, turf quality, and shoot density of the turf during the growing season but did not greatly affect the growth rate.

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Resin‐Coated Urea Evaluation for Turfgrass Fertilization

Cited by 14 publications

References 3 publications

Effects of slow-release fertilizers on growth and on uptake and leaching of nutrients in Kentucky bluegrass turfs established on sand-based root zones

Effects of slow-release fertilizers on growth and on uptake and leaching of nutrients in Kentucky bluegrass turfs established on sand-based root zones

Evaluation of a polyolefin coated urea (Meister) as a fertilizer for irrigated cotton

Effects of Nitrogen Application Timing on Growth and Quality of a Turfgrass Mixture

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