2. Institutional Publications

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Author: search.filters.author.Durga Devi, K MHas files: Yes

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    Evaluation of available phosphorus and potassium in soil using a common extractant
    (Kerala Agricultural University, 1986) Durga Devi, K M; Jose, A I
    A laboratory evaluation and an uptake study using Neubauer seedling technique was carried out for evolving a single common extractant suitable for extracting available P and available Kso as to simplify the process of extracting these available plant nutrients in soil testing work. The study was conducted in three phases, viz., an initial study, preliminary screening and a final selection using different extractants. The triacid (0.06 N H2S04 + 0.05 N HCI + 0.05 A/ oxalic acid) with a soil solution ratio of 1 :1 0 and equilibration period of 30 min was found to give very good correlation with Bray No. 1 P and NH4OAc (std) K and this extractant can be recommended for different soils of the state.
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    Soil test based fertilizer recommendation for ozhalapathy watersheds
    (Kerala Agricultural University, 1993) Durga Devi, K M; Rajan, K C; Latif, P H
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    Effect of water management and lime on iron toxicity and yield of paddy
    (Kerala Agricultural University, 1996) Durga Devi, K M; Gopi, C S; Santhakumari, G; Prahhakaran, P V
    A field experiment was conducted during rabi and summer seasons of 1991-92 in paddy fields of Chalakudy Command Area, in order to study the effect of a single top dressing of lime on iron toxicity and yield of paddy under different water management practices. Considerable reduction in Fe' * concentration could be noticed in soil as well as plant during the period of panicle initiation when lime was applied entirely as one top dressing (at 20 days after transplanting or 30 days after sowing). Application of lime 9 500 kg ha' as single top dressing resulted significantly higher grain and straw yields of paddy as compared to lime >8> 300 kg ha ', 900 kg ha ' and no lime application. The economic level of lime for getting maximum profit from grain and straw was 568 kg ha ' and 635 kg ha1 for the rabi and summer crops respectively.
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    Standardization of bioassay technique for determining butachlor residues in kole soils of Kerala
    (Kerala Agricultural University, 1999) Durga Devi, K M; Abraham, C T; Prabhakaran, P V
    Different plant species were grown in pots containing soil fortified with known quantities of butachlor and based on the response to the herbicide amaranth was selected as the indicator plant for the herbicide. Among the several growth parameters tested for assessing the plant response to soil residues of butachlor, CSGR (compound shoot growth rate) proved to be the best for quantitative determination of butachlor residues in kole soils of Kerala.
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    Standardisation of procedure for residue analysis of 2, 4-d in soil
    (Kerala Agricultural University, Vellanikara, 2001) Durga Devi, K M; Abraham, C T; Chinnamma, N P