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2002•Journal of the Indian Society of Soil ScienceOpen access

Effect of phosphorus, FYM and lime on yield, P uptake by maize and forms of soil acidity in typic hapludalf of Meghalaya

Venkatesh Venkatesh, B. Majumdar, Krishna Kumar

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Abstract

Field experiments were conducted during the kharif seasons of 1999 and 2000 to study the effect of P levels, FYM and lime on yield, P use efficiency (PUE) by maize and forms of soil acidity. Application of 60 kg P2O5 with 5 t FYM and 2 t lime ha−1 resulted in a significant increase in yield, test weight, P uptake and PUE by maize. Available P and exchangeable Ca and Mg in post-harvest soil also increased due to application of P, FYM and lime but there was a considerable decline in exchangeable Al due to liming. Application of lime and FYM along with P reduced the different forms of acidity and the exchangeable acidity registered a decline up to 72 per cent on liming. Soil available P showed significant negative correlation with exchangeable acidity.

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What this paper is about

Field experiments were conducted during the kharif seasons of 1999 and 2000 to study the effect of P levels, FYM and lime on yield, P use efficiency (PUE) by maize and forms of soil acidity. Application of 60 kg P2O5 with 5 t FYM and 2 t lime ha−1 resulted in a significant increase in yield, test weight, P uptake and PUE by maize. Available P and exchangeable Ca and Mg in post-harvest soil also increased due to application of P, FYM and lime but there was a considerable decline in exchangeable Al due to liming. Application of lime and FYM along with P reduced the different forms of acidity and the exchangeable acidity registered a decline up to 72 per cent on liming. Soil available P showed significant negative correlation with exchangeable acidity.

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Available abstract

Field experiments were conducted during the kharif seasons of 1999 and 2000 to study the effect of P levels, FYM and lime on yield, P use efficiency (PUE) by maize and forms of soil acidity. Application of 60 kg P2O5 with 5 t FYM and 2 t lime ha−1 resulted in a significant increase in yield, test weight, P uptake and PUE by maize. Available P and exchangeable Ca and Mg in post-harvest soil also increased due to application of P, FYM and lime but there was a considerable decline in exchangeable Al due to liming. Application of lime and FYM along with P reduced the different forms of acidity and the exchangeable acidity registered a decline up to 72 per cent on liming. Soil available P showed significant negative correlation with exchangeable acidity.

Key concepts: Lime, Soil pH, Kharif crop, Phosphorus, Field experiment, Chemistry, Yield (engineering), Agronomy

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Effect of phosphorus, FYM and lime on yield, P uptake by maize and forms of soil acidity in typic hapludalf of Meghalaya — Research Paper | ScholarLens