Articles by Keyword: Rice

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  1. <em>q</em>-identities of Fu and Lascoux proved by the <em>q</em>-rice formula

    <em>q</em>-identities of Fu and Lascoux proved by the <em>q</em>-rice formula

    Item type: Journal Article • Journal: Quaestiones Mathematicae
    Two recent q-identities of Fu and Lascoux are proved by the q-Rice formula.
  2. Comparing macrophyte herbivory by introduced Louisiana crayfish (<em>Procambarus clarkii</em>) (Crustacea: Cambaridae) and native Dytiscid beetles (<em>Cybister tripunctatus</em>) (Coleoptera: Dytiscidae), in Kenya

    Comparing macrophyte herbivory by introduced Louisiana crayfish (<em>Procambarus clarkii</em>) (Crustacea: Cambaridae) and native Dytiscid beetles (<em>Cybister tripunctatus</em>) (Coleoptera: Dytiscidae), in Kenya

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The omnivorous Louisiana crayfish, Procambarus clarkii, has caused significant changes to macrophyte communities worldwide and may have similar negative effects in Kenya if used as a biological control agent for snails harbouring human schistosomes. Here we examine how herbivory by...
  3. Small-scale rice irrigation technology in southern Ghana: the challenges for sustainable uptake

    Small-scale rice irrigation technology in southern Ghana: the challenges for sustainable uptake

    Promotion of small-scale irrigation in rain-fed rice lowlands is reckoned a key strategy for filling the escalating gap between rice supply and demand in sub-Saharan Africa. Though studies acknowledged the farmer-centred nature of small-scale rice irrigation technology, along with its...
  4. Effect of briquetting temperature on the properties of biomass briquettes

    Effect of briquetting temperature on the properties of biomass briquettes

    The importance of and growing worldwide interest in developing technologies that could utilise biomass material cannot be over looked particularly in developing countries. This study investigated the effect of briquetting temperature (normal and high temperature) on the physical and combustion...
  5. Agronomic performance of early segregating generations of rice under salt stress in Niger

    Agronomic performance of early segregating generations of rice under salt stress in Niger

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Salinity is a major abiotic constraint that retrains rice production worldwide. The development and release of rice cultivars with improved performance in saline environments is essential to fight against this scourge. Hence this study was carried out to evaluate segregating...
  6. Interaction of small-scale supplemental irrigation, <em>sawah</em> preparation intensity and soil amendment type on productivity of lowland <em>sawah</em>-rice system

    Interaction of small-scale supplemental irrigation, <em>sawah</em> preparation intensity and soil amendment type on productivity of lowland <em>sawah</em>-rice system

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Sole dependence on rainfall, poor water management and low soil fertility largely explain the fluctuations in agricultural productivity in West Africa. Lowlands for sawah-based rice farming often offer opportunities for small-scale supplemental irrigation but these are rarely explored and their...
  7. Assessment of genetic diversity of rice based on SNP markers for selection of parents for sheath rot (<em>Sarocladium oryzae</em>) resistance breeding

    Assessment of genetic diversity of rice based on SNP markers for selection of parents for sheath rot (<em>Sarocladium oryzae</em>) resistance breeding

    Item type: Journal Article • Journal: South African Journal of Plant and Soil
    Sheath rot of rice, caused by Sarocladium oryzae, is an important emerging rice disease not only in Rwanda, but also in other rice-growing countries. Given that cultivar resistance is a sustainable management strategy for small-scale farmers, the aim of this...
  8. Effects of Tillage System and Weed Control Method on Weed Infestation and Yield of Lowland Rice (<em>Oryza sativa</em> L<em>.</em>)

    Effects of Tillage System and Weed Control Method on Weed Infestation and Yield of Lowland Rice (<em>Oryza sativa</em> L<em>.</em>)

    Item type: Journal Article • Journal: East African Agricultural and Forestry Journal
    A two–year experiment was carried out to determine the effects of tillage (heap and level, hoe plough and herbicide-based zero tillage) and weed control methods (no weeding, hoe weeding at 25 days after transplanting (DAT), hoe weeding at 25 and...
  9. Rice husk ash as a sustainable supplementary cementitious material for improved concrete properties

    Rice husk ash as a sustainable supplementary cementitious material for improved concrete properties

    There is a wide range of research worldwide on supplementary cementitious materials (SCMs) such as fly ash, slag and silica fumes that have pozzolanic properties sufficient for substituting ordinary Portland cement (OPC). These SCMs are known to significantly improve concrete...