• COTTON (Gossypium spp)
    AGRICULTURAL SCIENCE

    COTTON (Gossypium spp)

    Cotton is a fibre crop and belongs to the plant family called Malvaceae. It produces cotton lint, a white fibre used in textile industries.   Land Preparation: The land is cleared with cutlass or mechanically ploughed and harrowed to make it soft for planting of cotton seeds.   Varieties or Cultivars Gossypium hirsitum, Gossypium vitifolium, Ishan type, samaru, Gossypium peruvianum (meko cotton).   Climatic and soil requirement: Cotton requires a temperature of 25°C – 35°C, rainfall of 65cm – 125cm per annum, abundant sunlight and a very rich, deep, loamy or clay-loamy soil.   Method of Propagation: By seeds.   Planting Date: Cotton is planted in June and July in…

  • RICE (Oryza sativa)
    AGRICULTURAL SCIENCE

    RICE (Oryza sativa)

    Rice is another popular cereal crop grown and consumed by nearly half of the world’s population. It is also a member of the grass family (Gramineae). The seed/fruit of rice is a caryopsis, i.e ., it has its epicarp fused with the mesocarp.   Land Preparation: This is done either manually, using cutlass to clear the bush and remove stump and hoe to make ridges, or mechanically by ploughing, harrowing and ridging.   Varieties or Cultivars: These include the swamp rice (Toma, BG79 and GFB24) and the upland rice (Agbede).   Climatic and Soil Requirement: Rice requires a temperature of over 20°C, 75cm – 120cm of rainfall for upland rice…

  • SOME CULTURAL PRACTICES IN CROP PRODUCTION
    AGRICULTURAL SCIENCE

    SOME CULTURAL PRACTICES IN CROP PRODUCTION

    1) Transplanting The transfer of seedlings from nursery beds to their permanent positions in the field. The tools used for transplanting are handtrowel, digger, hoe or cutlass. Plant is removed with a ball of soil around its roots. Mostly done in cool weather, in morning or evening times. Transplants require shading to reduce wilting. Soil around roots at permanent site are firmed to eliminate air pockets for good root establishment. Watering is done morning and evening. Mulch after transplanting to reduce evapo-transpiration. Usually done at the early stages of development of the crop plant, long before maturity. Weak or diseased seedling should not be transplanted.   2) Shading Art of…

  • PROPAGATION OF CROPS
    PRE-VOCATIONAL STUDIES

    PROPAGATION OF CROPS

    Meaning of propagation Propagation is the process of raising young plants from seeds or by vegetative parts.   Methods of crop propagation There are two main methods of crop propagation. Viz: Sexual propagation Asexual propagation   Sexual or seed propagation Sexual propagation is the development of crop plant through the sowing of seeds. Crops which can be propagated by this method are tomato, okro, onion, oil palm, coconut, maize, rice, cowpea, etc. the seeds of these crop may be planted directly in the field e.g. rice or firstly in a nursery before transplanting to the field e.g. oil palm, cocoa, tomato.   Advantages of sexual propagation It is easier to…

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