1992
DOI: 10.1007/978-1-4612-2820-2_3
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Soil Fertility Restoration and Management for Sustainable Agriculture in South Asia

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Cited by 38 publications
(29 citation statements)
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“…It can be related to the higher clay content in calcareous soil (Table 1). The edge faces of clay minerals behave similar to the Fe and Al hydroxides in the adsorption of P (Prasad and Power, 2000). Al-P concentration in acidic soil similar to the Fe-P was higher than in calcareous soil, but differences of Al-P concentration were not statistically significant.…”
Section: Effects Of Phosphorus and Organic Fertilizers On Phosphorus mentioning
confidence: 86%
See 1 more Smart Citation
“…It can be related to the higher clay content in calcareous soil (Table 1). The edge faces of clay minerals behave similar to the Fe and Al hydroxides in the adsorption of P (Prasad and Power, 2000). Al-P concentration in acidic soil similar to the Fe-P was higher than in calcareous soil, but differences of Al-P concentration were not statistically significant.…”
Section: Effects Of Phosphorus and Organic Fertilizers On Phosphorus mentioning
confidence: 86%
“…Therefore, P is added to cultivated soils worldwide through chemical or organic (e.g., manure and sewage sludge) fertilization. When a water-soluble Phosphorous fertilizer (PF) such as triple superphosphate (TSP) or di-ammonium phosphate (DAP) is applied to soil, immediately after its dissolution the phosphate ions in solution react with Ca, Fe, or Al ions present in soil solution and are precipitated as insoluble compounds, or become adsorbed on surface of clay particles (Prasad and Power, 2000). Chemical P fertilizer is a costly agri-Fractionation of P in submerged soil cultural input for rice farmers in Iran, and sometimes the material is not available.…”
Section: Introductionmentioning
confidence: 99%
“…There are several causes of soil acidity: the nitrification process, organic matter decomposition, and acid rain contribute to increased soil acidity (Prasad and Power, 1997;Sparks, 2003). Intensive and continuous crop production accelerates the acidification of soil because the conversion of ammonium-based N fertilizer sources to nitrate causes a net H + release, which lowers the soil pH in the plant rooting zone (Tang, 2004;Garvin and Carver, 2003;Prasad and Power, 1997).…”
Section: Introductionmentioning
confidence: 99%
“…Intensive and continuous crop production accelerates the acidification of soil because the conversion of ammonium-based N fertilizer sources to nitrate causes a net H + release, which lowers the soil pH in the plant rooting zone (Tang, 2004;Garvin and Carver, 2003;Prasad and Power, 1997). A survey conducted in 1996…”
Section: Introductionmentioning
confidence: 99%
“…Some crops such as cotton (Gossypium sp. ), sorghum (Sorghum bicolor) and alfalfa (Medicago sativa) are sensitive to Al toxicity and need liming to nearly zero level of Al-saturation for successful crop growth 33 . Morita et al 34,35 demonstrated that oxalate was a key compound in the Al-tolerance mechanism employed by the tea plant, which detoxifies Al 3+ externally in the rhizosphere.…”
Section: Overcoming Aluminium Toxicitymentioning
confidence: 99%