The relationship between average annual rainfall and exchangeable aluminium in soils of south-eastern New South Wales

Conyers, MK

doi:10.1071/ea9860587

Cited by 10 publications

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“…Soil acidity is common in all regions where precipitation is high enough to leach appreciable amounts of exchangeable bases from the surface of the soil. Acid soils are prevalent in areas experiencing high annual rainfall of about 1500 mm or more (Conyers, 1986). These soils, especially the ultisols and oxisols usually have problems associated with Al toxicity, low nutrient status, nutrient imbalance and multiple nutrient deficiencies (Sanchez, 1987;Adiloğlu and Adiloğlu, 2004).…”

Section: Introductionmentioning

confidence: 99%

Potentials of some cement by-products for liming of an acid soil in the humid zone of South-Western Cameroon

Ngane¹,

Tening²

2012

ABJNA

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Aluminium (Al) toxicity is the major limiting factor of plant growth in acid soils. A pot trial was carried out to evaluate the effects of lime (CaCO 3) from three liming materials on soil Al toxicity and the yield of maize (Zea mays L.). Two cement by-products (Agri-56 and Filler) and a conventional liming material (Limbux) were used. The acid neutralizing values for Limbux, Agri-56 and Filler were 126, 88 and 34% CaCO 3 equivalent, respectively. Five rates of lime equivalent: 0, 2, 4, 8 and 16 tons CaCO 3 ha-1 and the three liming materials were applied in combinations as treatments. Agri-56 was as efficient as Limbux in neutralizing Al toxicity. Aluminium saturation decreased from 83% to 31, 37and 69% for Limbux, Agri-56 and Filler, respectively when 2 tons CaCO 3 ha-1 was applied. Limbux and Agri-56 increased the soil pH from 4.3 to 7.1 and 6.5, respectively at equivalent rate of 16 tons CaCO 3 ha-1. There was a 53.5 and 67.2% increase in maize yield for Limbux and Agri-56, respectively when 2 tons CaCO 3 ha-1 was applied. Because of its availability and easy to use, Agri-56 is therefore recommended as the liming material on the acid soils of Southwestern Cameroon.

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Section: Introductionmentioning

confidence: 99%

Potentials of some cement by-products for liming of an acid soil in the humid zone of South-Western Cameroon

Ngane¹,

Tening²

2012

ABJNA

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Soil Fertility and Crop Productivity in African Sustainable Agriculture

Okorogbona

Adebola

2014

Sustainable Agriculture Reviews

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Effect of soil acidity and liming on lucerne and following crops in central-western New South Wales

Mullen

Bellows

Evans

et al. 2006

Aust. J. Exp. Agric.

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On some of the lighter textured soils in the wheatbelt of central-western New South Wales near Dubbo, soil acidity is a major problem, and lucerne (Medicago sativa) often establishes and grows poorly. We selected a site with a surface soil pHCa of 4.4 and an exchangeable aluminium of 0.4 cmol(+)/kg, which was also acidic down the soil profile. Experimental plots of 4 application rates of lime (nil, 1, 2 and 3 t/ha) in 4 replications were established. The site was limed in 1990 and lucerne sown in May 1991. Over the next 6 years the trial was periodically grazed with sheep, and lucerne regrowth and stand density were monitored. In October 1997, the lucerne was removed and 3 crops of varying acid tolerance (wheat, barley and canola) were sown as split plots in both 1998 and 1999. Lucerne density was higher in the limed plots compared with the unlimed treatment, and this difference persisted for 6 years. Dry matter production of lucerne was increased by lime applied at rates up to 2 t/ha. All 3 crops sown after the lucerne phase responded to lime applied 8 and/or 9 years earlier. The responses were attributed to the strong residual effect of the lime in the 0–10 cm soil layer, to smaller improvements in the 10–20 cm zone (possibly due to the movement of lime down the soil profile over the 7 years before the date of measurement) and to carry over effects of nitrogen fixation by the lucerne into the cropping phase. The protein content of the wheat grain was increased concurrently with grain yield due to the previous liming and resultant legume nitrogen effects. The results support the application of lime to improve the productivity of lucerne and subsequent crops, even when the soil is acidic to depths below the cultivation layer.

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The relationship between average annual rainfall and exchangeable aluminium in soils of south-eastern New South Wales

Cited by 10 publications

References 0 publications

Potentials of some cement by-products for liming of an acid soil in the humid zone of South-Western Cameroon

Potentials of some cement by-products for liming of an acid soil in the humid zone of South-Western Cameroon

Soil Fertility and Crop Productivity in African Sustainable Agriculture

Effect of soil acidity and liming on lucerne and following crops in central-western New South Wales

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