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  • ThesisItemOpen Access
    Standardisation of fertilizer schedule for export oriented production of bhindi
    (Department of Agronomy, College of Agriculture, Vellayani, 1993) Sajitharani, T; KAU; Pushpakumari, R
    An experiment was conducted at the instructional farm, College of Agriculture, Vellayani to find out the effect of different levels of fertilizers and their split application on the growth, yield, quality and nutrient uptake of bhindi. Abelmoschus esculentus (L) Moench. The treatments consisted of four levels of nutrients Viz. (330: 110: 220 kg N2 P2O5 & K2O), the present T & V recommendation, 2/3 of the T & V recommendation, 1/3 of the T & V recommendation and 50: 8: 30 kg NP2O5 & K2O per hectare the present package of practices recommendation and 3 methods of application viz. nutrients in 2 splits, 4 splits and 6 splits. The results revealed that nutrient levels significantly influenced most of the growth and yield contributing characters and yield of bhindi. Biometric characters like plant height, LAI, CGR, DMP and yield contributing characters like days to 50 percent flowering, number of flowers formed, number of fruits formed total yield of fruits and quality parameters like protein content and ascorbic acid content increased with increasing levels of nutrients, recording their maximum value at F1 level, (T and V recommendation). Uptake of nutrients by plants, fruits and total was also maximum for the same treatment. However yield attributes viz. setting percentage, length and girth of fruits etc. remain unchanged with increasing levels of nutrients. Application of fertilizer nutrients in different splits viz. 2,4 or 6 cause significant variation in some of the growth and yield characters. An increase in the plant height at 60 DAS, DMP, days taken for 50 percent flowering and uptake of nutrients was noticed when nutrients were supplied in two equal splits, viz half as basal and half 30 DAS (S1). On the other hand the ascorbic acid content in fruits was maximum when nutrients were applied in six splits. Application of nutrients in 6 splits caused a significant reduction in the crude fibre content also. From the economic point of view, the maximum net profit of Rs.13682.54 was obtained by F3 level (2/3 of T and V recommendation) and Rs.14710.8 by S1 (2 equal splits half as basal and half 30 DAS).
  • ThesisItemOpen Access
    Studies on the performance of two groundnut varieties, TMV-2 and TMV-9, under graded doses of phosphorus and potassium.
    (Department of Agronomy, College of Agriculture, Vellayani, 1978) Purushothaman Nair, N; KAU; Sadanandan, N
  • ThesisItemOpen Access
    Comparative studies on the fixation of nitrogen by certain common legumes
    (Division of Agronomy, Agricultural college & reseach institute Vellayani, Trivandrum, 1963) Rose, H L; KAU; Madhavan Nair, K
  • ThesisItemOpen Access
    Studies on the effect of graded doses of phosphorus in conjunction with lime on growth , yield & phoperous uptake in rice (Oryza sativa Linn.) Var. IR B.
    (Division of Agronomy, Agricultural college & reserach institute Vellayani, Trivandrum, 1969) Suseelan, P.; KAU; George, C M
  • ThesisItemOpen Access
    Studies on the effect of N, P and K fertilization on the growth and yield of chilli (Capsicum annuum, L.)in red loam soils of Kerala
    (Division of Agronomy, Agricultural college & reseach institute Vellayani, Trivandrum, 1968) Mohamed Kunju, U; KAU; George, C M
  • ThesisItemOpen Access
    Production potential of two fodder grasses under different management practices
    (Department of Agronomy, College of Agriculture, Vellayani, 1986) Raghavan Pillai, G; KAU; Madhavan Nair, K P
  • ThesisItemOpen Access
    Time of application of pre-emergence herbicides in dry-sown rice
    (Department of Agronomy, College of Horticulture, Vellanikkara, 1989) Suja, G; KAU; Abraham, C T
  • ThesisItemOpen Access
    Studies on the effect of fertilizers on the growth, yield and quality of oil of citronellla
    (Division of Agronomy, Agriculture college and research institute Vellayani , Trivandrum, 1966) Ravindranathan Pillay, G; KAU; Madhavan Nair, K
    The present investigation was undertaken at the agriculture college and research institute , Vellayani during 1964-66 to study the influence of fertilizers on growth yield and quality of oil in citronella.The effect of nutrients nitrogen and potach at three level each and phosphorus and calcium two levels each were studied in a mixed confounded factorial experimnt , in randomised Block design.
  • ThesisItemOpen Access
    Studies on the performance of five varieties of cowpea (Vigna sinencis Savi.) and their response to nitrogen and phosphate fertilization
    (Division of Agronomy, Agricultural college & reseach institute Vellayani, Trivandrum, 1966) Ravindran Nair, R; KAU; George, C M
    A field experiment was laid out in the farm attached to the agricultural college and research , Vellayani, during 1965-66 to study the effect of nitrogen and phosphate fertilization on five varieties of cowpea and to determine the best variety, suited to the local conditions . The varieties tried were , new era, M.S .9314, African, C4 and the local. The fertilizer treatments comprised two levels of nitrogen , vis, 0,30,60 and 90 kg./ha.