2. Institutional Publications
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Item Infiltration and moisture retention of five major soil groups of Kerala(Kerala Agricultural University, 1987) Ushakumari, K; Leela, K; Anilkumar ShardaLaboratory and field experiments were conducted to evaluate the soil water retention and infiltration rates, respectively, for five major soil groups of Kerala, namely, laterite, black, red loam, riverine alluvium and coastal alluvium. Black soils were found to retain more water whereas coastal alluvium retained the minimum at different soil water tensions. So, was true of their available water status_ (nfilttation rates were higher in the case of coastal alluvium red loam and laterite soils. Black soils exhibited rather low values of infiltration rates.Item Structural status in relation to physico-chemical characteristics of soil(Kerala Agricultural University, 1987) Ushakumari, K; Leela, K; Anilkumar ShardaThe influence of physico-chemical properties of soils on the soil structure of five major soil groups of Kerala namsly leterite, black, red loam, riverine alluvium and coastal alluvium was studied. Black soils have distinctly superior aggregation in comparison to rest of the soils under investigation. Some of the physicochemical properties like clay, organic matter, CEC and sesquioxide play an important role in building soil structure in most of the soil groups except riverine alluvium. This is because of the comparatively recent origin of riverine alluvium soils.Item Low cost technology for the collection of vermiwash in homesteads(Kerala Agricultural University, 1998) Padmaja, P; Ushakumari, K; Prabhakumari, PItem Efficiency of vermicompost on growth and yield of summer crop Okra (Abelmoschus esculentus moench)(Kerala Agricultural University, 1999) Ushakumari, K; Prabhakumari, P; Padmaja, PItem Effect of vermicompost enriched with rock phosphate on the yield and uptake of nutrients in cowpea (Vigna unguiculata [L. ] Walp)(Kerala Agricultural University, Vellanikara, 2002) Sailaja Kumari, M S; Ushakumari, KA field experiment was conducted in a Rhodic Haplustox during 1997-98 to study the effect of enriched vermicompost on the yield and uptake of nutrients by cowpea. Among the different treatments tried, enriched vermicompost showed its superiority over other treatments for yield and uptake of major nutrients like N, P, K, Ca and Mg. But the micronutrient uptake was not significantly influenced by any of the treatment.