Browsing by Author "Rugmini, P"

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    Factor analysis of soil properties in Paraserianthes Falcataria (L.) nielson plantations
    (Kerala Agricultural University, 1994) Rugmini, P; Balagopalan, M
    Soil properties in different layers viz., 0-20 cm, 20- 40 cm, 40-60 cm and 0-60 cm in Paraseriantfies falcataria plantations in Kerala were subjected to factor analysis. Out of die eleven variables studied viz., gravel, sand, pH, organic carbon, exchange acidity, exchangeable bases, total N, P, K, Ca and Mg, factor analysis identified four factors which accounted for more than 72% of the variation in these variables in each layer. The four factors were textural component, organic matter component, acidic component and nutrient capital of the soil. Certain factors in 0-20 cm, 20-40 cm and 40-60 cm layers were common with those in the 0-60 cm layer. The study indicated that it is more advisable to interpret the different factors in the 0- 60 cm layer rather than those in individual layers.
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    Follower timing and nutrient requirement of ratoon crop of banana cv. musa (Aab) 'Mysore' (Palayankodan)
    (Kerala Agricultural University, 1994) Pradeep, K P; Krishnakumary, K; Rugmini, P
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    Soil properties as influenced by elevation: A factor analysis
    (Kerala Agricultural University, 1994) Rugmini, P; Balagopalan, M
    Soil properties in 0-100 cm layer of three different elevations, 150 (E,), 750 (E2) and 1450 (E,) m asl were subjected to factor analysis. Out of the nine variables studied viz., gravel, sand, pH, water holding capacity, organic carbon, cation exchange capacity, total N, P and S, factor analysis identified three factors in E, and E, and two factors in E, in the 0-100 cm layer. In E, and E, three factors accounted for 70% and 78% variations, respectively while in E; two factors accounted for 67% variation.