Browsing by Author "Shivashankar, K."

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    Evaluation of turmeric and sweet potato to manuring in arecanut gardens
    (2007-02) Sannamarappa, M.; Shivashankar, K.
    Response of turmeric and sweet potato to manuring as intercrops in arecanut gardens and as pure crops was evaluated by studying the growth attributes like number of leaves, tillers, LAR, RLGR, RGR, NAR, bio-mass production and yield of economic end products. Response behaviour of turmeric and sweet potato was the same as inter crops and pure crops. Number of functional leaves, tillers or branches/plant and biomass production showed increase with manuring; but these were not reflected in yield of economic end products.
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    Performance of Turmeric and Sweet Potato-Cowpea Planted as Intercrops at two Intercropping Intensities Under four Different Densities of Arecanut
    (2007-02) Sannamarappa, M.; Shivashankar, K.
    Growth attributes of intercrops like turmeric, and sweet potato-cowpea were partially influenced by either arecanut plant densities or intercropping intensities. At 2.7 x 2.7 m spacing of arecanut, sweet potato produced 174 leaves at 60% intercropping intensity and cowpea produced 287 leaves per plant. Biomass production was higher at 1.8 mx 3.6 m at 60% intercropping intensity in turmeric, while wider spacing (3.6 mx 3.6 m) at 60% intercropping intensity was ideal for high biomass production in sweet potato. Intercrops behaved differently in yield attributes in response to plant densities of arecanut and intercropping intensities. In turmeric, yield increased with narrower spacings while in sweet potato wider spacings were optimum in enhancing yield attributes and yields. Turmeric and sweet potato responded to 60% intensity with 5228 kg/ ha and 4549 kg^ha compared to 3764 kg/ ha and 3743 kg/ ha at 40% intensity respectively. Cowpea yielded better with wider spacings.