Plant uptake and phytotoxicity of boron in Australian fly ashes

Aitken, R. L.; Bell, L. C.

doi:10.1007/bf02143187

Cited by 74 publications

(43 citation statements)

References 18 publications

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“…For instance, although boron plays a vital role in plant growth, at higher concentration, however, it produces injurious effects on crops plants (Francois, 1984, Aitken & Bell, 1985. In addition, the toxic compounds and heavy metals present in fly ash might also have caused toxicity to tomato.…”

Section: Discussionmentioning

confidence: 99%

Management of root‐knot disease of tomato by the application of fly ash in soil

Khan¹,

Khan

Singh

1997

Plant Pathology

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The effects of fly ash at different concentrations (0, 10, 20, 30 .. .100% vol./vol. in soil) on plant growth and yield were investigated in tomato plants infected or noninfected with root-knot nematode, Meloidogyne incognita (2000 juveniles per plant) in clay pots. An increase in fly ash concentration in the soil correspondingly increased the availability of carbonates, bicarbonates, sulphate, chlorides, B, P, K, Ca, Mg, Mn, Cu and Zn in the soil. The porosity, water-holding capacity, pH, conductivity and cation exchange capacity also increased progressively in the fly ash amended soil. Ash application enhanced plant growth, leaf pigment concentrations, fruit production, weight of fruit/plant and mean fruit weight of both nematodeinfected and noninfected tomato plants, being maximum in the soil containing 50 or 60% fly ash. The yield enhancements were 93 . 6 (infected plants) and 84% (noninfected plants) at 50 and 60% fly ash levels, respectively. Fly ash treatments adversely affected root invasion by juveniles, disease intensity and reproduction of the nematodes. A gradual increase in the ash concentration in soil caused a corresponding decrease in the numbers of invading juveniles, galls and egg masses per root system and eggs/egg mass, being lowest at 100% fly ash i.e. 52, 16, 10 and 81 against 289, 137, 131 and 238 (control), respectively. Linear regression suggested 40% fly ash as the most economic level, enhancing yield of infected plants by 96% and suppressing the nematode disease and reproduction by 63 and 76%, respectively.

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Section: Discussionmentioning

confidence: 99%

Management of root‐knot disease of tomato by the application of fly ash in soil

Khan¹,

Khan

Singh

1997

Plant Pathology

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“…The FA amendment increases the water holding capacity of sandy and loamy soils by 8%, yet FA alone is not very effective in retaining water (Chang et al 1977). The higher B availability from FA limits its use in crop production (Aitken and Bell 1985) by proper weathering of FA this problem can be overcome, as it reduces the B availability below the toxic levels (Cope 1962;Townsend and Gillham 1975). Alteration in soil texture has been reported by some workers due to amendment of FA in soil (Fail and Wochok 1977;Chang et al 1977) (Table 3).…”

Section: Physicochemical Properties Of Fly Ashmentioning

confidence: 96%

“…Increase Brake et al (2004),Aitken and Bell (1985), Sinha (2006, 2008),Jala and Goyal (2006), Basu et al (2009) Fe, Cu, Zn, Mn IncreaseTripathi et al (2004), Sinha (2006, 2008),Jala and Goyal (2006), Basu et al(2009)Electrical conductance IncreaseAdriano et al (1980),Eary et al (1990) …”

mentioning

confidence: 95%

Coal fly ash utilization in agriculture: its potential benefits and risks

Singh

Gupta

Ibrahim

et al. 2010

Rev Environ Sci Biotechnol

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Over the past few decades there has been avid interest in developing the strategies for the utilization of Fly ash (FA). Major foci have been on its agricultural application. It is often economical to use FA as a soil amendment. The potential of FA as a resource material in agriculture is due to its specific physical properties like's texture, water holding capacity, bulk density, pH etc., and contains almost all the essential plant nutrients. It can be used as in soil that cannot substitute the chemical fertilizers or organic manure it can be used in combination with these to get additional benefits in terms of improvement in soil physical characteristics, increased yields etc. The amount and method of FA application in soil would vary with the type of soil, the crop, grown, the prevailing agro climatic condition and also with the FA characteristics. Although, as an input material FA has many benefits for agriculture applications like, improvement of nutrient deficiency, effectively control various pests infesting etc., in contrast FA also contains number of toxic heavy metals and also have natural radioactivity materials in it. Therefore, proper attention should be given on some important areas related to FA utilization such as long term studies of impact of FA on soil health, heavy metal uptake, plant physiology and growth, crop quality, and continuous monitoring on the soil characteristics. While using FA in agriculture problem of heavy metal toxicity and leaching due to excess dose should also be kept in mind.

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“…1978;Zwick et a1. 1984;Aitken and Bell 1985). However, boron toxicity was not observed in soils where weathered fly ash was added (Plank et a1.…”

Section: Soil Propertiesmentioning

confidence: 99%