• CLASSIFICATION OF CROPS
    AGRICULTURAL SCIENCE

    CLASSIFICATION OF CROPS

    Crops can be classified based on: Uses. Life Cycle. Morphology.   CLASSIFICATION OF CROPS BASED ON THEIR USES In this classification, crops are divided into the following categories: Cereal crops: These crops belong to the grass family and they provide carbohydrate, e.g, maize, rice, millet, guinea corn, wheat, barley and oats. Pulses (grain legumes): These crops are rich sources of protein, e.g. cowpea, soyabeans, groundnut, lima bean and pigeon pea. Roots and tuber crops: These crops produce tubers under the ground and they provide carbohydrates, e.g ., cassava, yam, cocoyam, sweet potato, beets and carrot. Vegetable crops: These crops provide vitamins and minerals e.g amaranthus, onion, okra, cauliflower, spinach, bitter…

  • SOURCES OF FARM POWER
    AGRICULTURAL SCIENCE

    SOURCES OF FARM POWER

    DEFINITION OF POWER Power is defined as the rate of doing work or the rate of expenditure of energy. Farm power can be obtained from the following sources: Human power. Animal power. Mechanical power. Electrical power. Solar power. Wind power. Water power. Biogas.   1) HUMAN OR MANUAL POWER Human power is derived from the power provided by human beings. It is the most common source of power in farm operations. With the aid of his intelligence, man uses his hand to perform certain farm operations. Human labour is used with traditional tools. It involves more people than all other sources of power. Human labour can be hired; it may…

  • EFFECTS OF SOME FARMING PRACTICES ON THE SOIL
    AGRICULTURAL SCIENCE

    EFFECTS OF SOME FARMING PRACTICES ON THE SOIL

    FARMING PRACTICES The following farming practices by farmers have various consequences or effects on the soil. a) Bush Burning: This involves the setting of fire on the bush to clear out the vegetation.   Merits It releases minerals like potassium and phosphorus to the soil in form of ash. Burning has some sterilizing effects on the soil. It stimulates the growth of fresh grasses, especially during dry season. It also destroys soil-borne pathogens or germs. It destroys the seeds of weeds.   Demerits It destroys the organic matter content of the soil. It reduces the population of soil living organisms. It oxidises nitrogen and sulphur into their gaseous forms, thus…

  • FUNCTIONS AND PROBLEMS OF FARM MANAGER
    AGRICULTURAL SCIENCE

    FUNCTIONS AND PROBLEMS OF FARM MANAGER

    In agriculture, the farm manager is usually regarded as the entrepreneur whose duties include the organisation, administration, production and marketing of produce from the farm. The reward for management is profit.   FUNCTIONS OFA FARM MANAGER The functions of a farm manager can be grouped into five major headings: Organisation. Administration Production. Marketing. Evaluation.   a) Organisation The farm manager secures suitable land for farming. He determines what to produce. He determines the scale of production. He procures loan or capital for farming. He recruits or employs labour or workers for the farm. He decides on which enterprise(s) to undertake, given the available resources, e.g. fish farming and rice production.…

  • ENVIRONMENTAL PHYSIOLOGY
    AGRICULTURAL SCIENCE

    ENVIRONMENTAL PHYSIOLOGY

    Environmental physiology refers to the effects of the environment on the growth and performance of farm animals. Normal growth and performance are enhanced when climatic factors like temperature, rainfall, wind, relative humidity, sunlight, etc are moderate. Excess or lack of these factors definitely will have a negative impact on the growth and overall performance of farm animals.   EFFECTS OF CHANGES IN CLIMATE ON GROWTH Changes in climate have some effects on the growth of farm animals. These effects include: Extremes of either hot or cold conditions is unfavourable and reduces the performance of farm animals. Wind aids the spread of diseases (air borne disease, e.g ., tuberculosis) which cause…

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