Foliar Accumulation of Zinc in Tree Species Grown in Hardwood Bark Media Amended with Crumb Rubber

Bush, Edward W.; Owings, Allen D.; Leader, Kris

doi:10.1081/pln-120021051

Cited by 8 publications

(7 citation statements)

References 6 publications

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“…Similar observations were also noticed by Abbaas (2002) on Casuarina glauca, Taxodium distichum and Populus nigra; Bush et al (2003) on Betula nigra and Ulmus parvifolia; Laypheng et al (2004) on Bougainvillea spectabilis, Ixora coccinea and Heleconia taxa; and Shahin et al (2007) on Matthiola incana and Dimorphotheca ecklonis.…”

Section: Data In Table (supporting

confidence: 74%

“…Similar observations were also recorded by Abbaas (2002) on Casuarina glauca, Taxodium distichum and Populus nigra; Salgare and Palathingal (2002) on Allamanda cathartica; Bush et al (2003) on Betula nigra and Ulmus parvifolia; Laypheng et al (2004) on Bougainvillea spectabilis, Ixora coccinea and Heleconia taxa; Rossini-Oliva and Rautio (2004) on Duranta repens; and Wang and Zhou (2005) on Tagetes erecta, Salvia splendens and Abelmoschus manihot. Similarly, Shahin and El-Malt (2006) revealed that survival % of sant and oak transplants was declined when grown in polluted sandy soil collected from the farm of Abou-Rawash Treatment Plant, while tipu transplants gave 100% survival.…”

Section: Introductionsupporting

confidence: 74%

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Effect of Long-Term Stress With Heavy Metals Combinations on Growth and Chemical Composition of Some Ornamental Shrubs I. Effect on Vegetative and Root Growth

Abdalla

Mahmoud

2008

Journal of Plant Production

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University during the two successive seasons of 2006/2007 and 2007/2008, as each season contained two periods of growth, to find out the response of six-months-old transplants of Acalypha wilkesiana Müll. Arg., Asclepias curassavica L., Dodonaea viscosa (L.) Jacq. and Tabernaemontana divaricata (L.) R. Br. ex Roem & Schult. to long-term stress of lead (Pb), cadmium (Cd) and nickel (Ni) combinations added as thawing acetate salts to the soil mixture at the rates of 00.00 ppm for each metal as a control, 500 ppm Pb + 50 ppm Cd + 25 ppm Ni for treatment number one (T1) and 2-, 3-, 4-and 5-fold of these concentrations for treatments number two (T2), three (T3), four (T4) and five (T5), respectively. Planting was in 25-cm-diameter black polyethylene bags filled with 3 Kg of a mixture of sand and loam at 1:1 (v/v).The obtained results indicated that no mortality was observed among Acalypha and Asclepias transplants, as they recorded 100% survival during the two periods of growth in the two seasons, but in case of Tebernaemontana and Dodonaea transplants, such parameter was reduced, especially for the transplants which were exposed to T4 and T5 combinations in the second period of growth. However, survival % of Tabernaemontana transplants was higher than that of Dodonaea. In general, top and root growth of the four shrubs was declined with various significant differences, specially with prolonging growth period under high level of toxic elements, except for Acalypha transplants which gave longer roots than those of control transplants under low and medium concentrations of heavy metals (T1, T2 and T3). However, under high concentrations (T4 and T5), the length of their roots was quite similar to that of control. So, it gave the highest pollution resistance index percentage (PRI %) compared to the other shrubs.In brief, according to the aforementioned results (in particular survival % and PRI %), ornamental shrubs undergo long-term stress of Pb, Cd and Ni combinations under conditions of the present work should be arranged in the following descending order: Acalypha wilkesiana > Asclepias curassavica > Tabernaemontana divaricata > Dodonaea viscosa.

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Section: Data In Table (supporting

confidence: 74%

Section: Introductionsupporting

confidence: 74%

Effect of Long-Term Stress With Heavy Metals Combinations on Growth and Chemical Composition of Some Ornamental Shrubs I. Effect on Vegetative and Root Growth

Abdalla

Mahmoud

2008

Journal of Plant Production

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“…Chaney (2007) reported that in Zn deficient calcareous soils, crumb rubber or ground rubber may be considered as a good zinc fertilizer; the particle size of ordinary "shredded rubber" may be too large to provide useful amounts of Zn release to the soil in the short term compared to ground rubber. Bush et al (2003) mixed ground rubber with sand and hardwood bark at different ratios as media materials to grow Bermuda grass. They concluded that increase in the ground rubber ratio increased nitrogen (N), potassium (K), manganese (Mn), and Zn concentration of the media.…”

Section: Discussionmentioning

confidence: 99%

Kinetics of zinc release from ground tire rubber and rubber ash in a calcareous soil as alternatives to Zn fertilizers

et al. 2010

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Ground rubber contains 15-20 g Zn kg −1 but very low levels of Cd and could serve as an inexpensive byproduct Zn fertilizer. The aim of this investigation was to test Zn release in a soil treated with ground tire rubber and rubber ash compared with commercial Zn fertilizer and a laboratory grade zinc sulfate. A Zn-deficient soil was chosen from wheat fields in Isfahan province, central Iran, and the ground rubber, rubber ash and fertilizer-Zn and laboratory ZnSO 4 were added at 0.5 and 2 mg Zn kg −1 ; 0.5 kg ha −1 would usually correct Zn deficiency in such pot tests. The soil DTPA-extractable Zn was then measured with time and the results were described examining first order, Elovich, power function and parabolic diffusion kinetics models. In the pot experiment, corn (Zea mays L.) plants were exposed to three rates of Zn (0, 20, 40 mg Zn kg −1 ) from two different sources (ZnSO 4 and ground rubber). Ground rubber was applied as 2-3 mm and <1 mm diameter particles. Zinc treatments were mixed with the soils before planting. At harvest, concentrations of Zn, Pb, and Cd in roots and shoots of corn were measured. Results showed that ground rubber and rubber ash significantly increased the concentration of DTPA-Zn in the soil and this increase was higher than achieved with the commercial Zn fertilizer. At the lower Zn application rate, Zn release followed parabolic diffusion, while at the higher rate the kinetics of release followed power function and Elovich models. There was an increase in Zn concentration of corn shoot and roots by adding of Zn regardless the source of applied Zn. With increase in the rate of rubber used, the shoot Zn uptake increased. The Pb concentration of shoot and Cd concentrations of shoot and roots were low (less than 0.02 mg kg −1 ) in all treatments. The results showed that the soil DTPA Zn decreases over time if the soil is amended with a soluble form of Zn whereas the reverse was observed if the Zn is added as ground rubber which only gradually transforms. Thus ground rubber and rubber ash offer strong value as Zn fertilizer for Zn deficient soils.

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“…Almost no research has been conducted to determine the effects of rubber mulch on plant growth in the landscape. When used as a container media amendment, rubber mulches can reduce plant growth and vigor primarily due to zinc toxicity (Bowman et al, 1994;Bush et al, 2006). It is unknown if use of rubber materials as a mulch would have similar effects on landscape plants when only applied on the soil surface as opposed to being in direct contact with plant roots (as a container media amendment).…”

Section: Mulchingmentioning

confidence: 99%

A Review of Weed Control Practices in Landscape Planting Beds: Part I–Nonchemical Weed Control Methods

Marble¹,

Koeser²,

Hasing³

2015

horts

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Weed control continues to be one of the most expensive and time consuming aspects of landscape maintenance. Many homeowners are becoming more interested in nonchemical pest-management strategies due to increasing concern over the environmental impact of pesticide use. Nonchemical landscape weed control can be achieved using mechanical disruption (e.g., mowing, hand-pulling, hoeing, and tilling), physical barriers, or cultural control methods (e.g., mulching and plant selection). However, the best results are almost always achieved when employing a variety of methods (often involving chemical control methods). In adopting a weed control strategy, client expectations and weed tolerances must be addressed. While a virtually weed-free landscape is possible without the use of herbicides, this goal often requires a significant amount of time and money, and requires more planning to be successful. The goal of this manuscript is survey the literature pertaining to nonchemical weed control in landscape planting beds and determine: 1) the most effective strategies; 2) the advantages and disadvantages of common practices; and 3) highlight areas where research is needed or improvements could be made.

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Foliar Accumulation of Zinc in Tree Species Grown in Hardwood Bark Media Amended with Crumb Rubber

Cited by 8 publications

References 6 publications

Effect of Long-Term Stress With Heavy Metals Combinations on Growth and Chemical Composition of Some Ornamental Shrubs I. Effect on Vegetative and Root Growth

Effect of Long-Term Stress With Heavy Metals Combinations on Growth and Chemical Composition of Some Ornamental Shrubs I. Effect on Vegetative and Root Growth

Kinetics of zinc release from ground tire rubber and rubber ash in a calcareous soil as alternatives to Zn fertilizers

A Review of Weed Control Practices in Landscape Planting Beds: Part I–Nonchemical Weed Control Methods

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