Effect of Moisture Regimes on the Availability of Iron and Manganese

C.R. LAKSHMINARASIMA RAO; K.K. KRISHNAMOORTHY; C.R. VENKATARAMANAN

doi:https://doi.org/10.29321/MAJ.10.A03073

Madras Agricultural Journal

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Effect of Moisture Regimes on the Availability of Iron and Manganese

Author: C.R. LAKSHMINARASIMA RAO, K.K. KRISHNAMOORTHY, C.R. VENKATARAMANAN,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 65, Issue: apr-apr,

DOI:https://doi.org/10.29321/MAJ.10.A03073

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Abstract

A green house study with three soil groups of Tamil Nadu using IR. 22 rice as test crop under three moisture regimes, viz.. submergence at 5 cm. depth, near field capacity and wetting and drying was conducted. The available Fa and available Mn released from the soils under different stages are discussed. Alluvial soils released more of available Fe followed by red and black soils while available Mn remained almost uniform for all the soils studied. Restricted moisture has no influence on the available Fe and Mn and the yield of rice under such conditions was found to be more than that of submergence.

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