Summary

• Description:

  The PDF document comprises Form 1 Agriculture notes on the topic of Soil Fertility I (Organic Manures).

  The topics and sub-topics covered in the document include:

  • Introduction to Soil Fertility
    • Soil fertility is defined as the ability of the soil to provide crops with the required nutrients in their proper proportions.
    • The characteristics of a fertile soil are outlined, including good depth, good aeration, good water-holding capacity, proper drainage, correct soil pH, and an adequate supply of nutrients.
  • Loss and Maintenance of Soil Fertility
    • The notes explain how soil loses fertility through processes like leaching, soil erosion, monocropping, and continuous cropping.
    • Methods for maintaining soil fertility are discussed, such as controlling weeds, implementing crop rotation, controlling soil erosion, and applying manures and fertilizers.
  • Organic Manures
    • Manures are defined as organic substances derived from plant and animal remains.
    • The importance of organic manures includes supplying organic matter, improving soil structure, providing food for soil microorganisms, and releasing nutrients into the soil.
    • The document details three main types of organic manures:
      • Farmyard Manure (FYM): This is a mixture of animal waste and bedding material. The notes describe its preparation, qualities of well-decomposed FYM, and its advantages and disadvantages.
      • Compost Manure: This is made from decomposed organic materials from various sources. Two methods of preparation are described: the pit method and the four-heap method. The advantages and limitations of compost manure are also listed.
      • Green Manure: This is created by growing a crop and then ploughing it back into the soil while it is still green. The characteristics of a good green manure crop are outlined.
  • Manures vs. Fertilizers
    • A brief comparison is made, noting that manures are bulky with low nutrient content while fertilizers are concentrated and contain specific nutrients.

  These notes are comprehensive, neat, and printable, making them an excellent resource for students studying the basics of soil fertility and the use of organic manures. They are also highly suitable for teachers to use for lesson preparation, providing a structured and clear guide to the topic.

• File Size:

  207.68 KB
• Length:

  13 pages
• Category:

  Lesson Notes
• Level:

  Form 1
• Subject:

  AGRICULTURE
• Posted By:

  Caleb_Peter

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