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  • Algalization  (1)
  • Hill Stream Cobits  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Effect of green manuring, blue-green algae and neem-cake-coated urea on wetland rice (Oryza sativa L.) (1990)
    Springer
    Biology and fertility of soils 9 (1990), S. 235-238 
    Details
    ISSN: 1432-0789
    Keywords: Algalization ; Green manuring ; Neem-cake-coated urea ; Prilled urea ; Blue-green algae ; Sesbania aculeata ; Wetland rice
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Geosciences , Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Summary A field trial was set up to examine the effect of green manuring, blue-green algae, and neem-cake-coated urea on a rice crop. Summer green manuring using Sesbania aculeata increased the crop yield. Inoculation of blue-green algae increased the rice grain yield when 60 kg N ha-1 was applied as prilled urea, but the increase in grain yield was greater when 60 kg N ha-1 was applied as neem-cake-coated urea. The results of the present study show that applications of green manure, neem-cake-coated urea, and blue-green algae are complementary and that the three treatments can be used together in the rice ecosystem. The green manure and the fertilizer treatments had no effect on the algal flora of the soil.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00336232
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  • 2
    Electronic Resource
    Electronic Resource
    Blood parameters of two hill stream cobitids in relation to their habitat (1978)
    Springer
    Hydrobiologia 60 (1978), S. 75-79 
    Details
    ISSN: 1573-5117
    Keywords: Blood parameters ; Hill Stream Cobits
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The blood of two fresh water cobitids — Botia lohachata, an exclusive water breathing form and Lepidocephalus guntea a dual breather, — showed a comparatively higher range of Hb (16.0–19.0 g%), Hct (50.0–61.1%) and number of RBC (2.71–6.7 millions/mm3) than many other water and air breathing fishes. Significant sexual difference exists in these characteristics (P 〉 0.05). The impact of life in oxygen depleted water, also inhabited by L. guntea as a result of its air breathing habit, is well reflected in its greater RBC size (11.86 × 8.66 µm) and their larger surface area (83.96 µm2) compared to that of Botia (53.16 µm2). The smaller size (9.92 × 6.45 µm) and consequently greater number of erythrocytes (4.67 millions/mm3) in Botia, are related to its active mode of life in the swiftly flowing water of hilly rivers. Though the higher nucleo-cytoplasmic ratio of 1 : 5.2 in Botia and 1 : 6.9 in Lepidocephalus suggest a slower red cell metabolism, the greater number of erythrocytes seems to have compensated for their active mode of life.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00018687
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