Essay On Plant Fertility
What is plant fertility?
Plant fertility which is also known as soil fertility is the ability of the soil to supply the needed proportions of nutrients and the adequate amount of water to sustain plant growth and reproduction. It is about the soil being able to provide the needs for a plant to grow and it all starts with nurturing the roots.
What makes up soil?
Soil is defined as a thin covering over the land consisting mixture of minerals, organic material, living organisms, air and water. (page 10)Soil is constructed of five main components:
• Different mineral particles which fall off from rocks due to weathering. o There are two types of weathering processes (mechanical and chemical) which lead to the size of rock particles getting smaller.
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Usually fertile soil has some organic matter which helps improve the structure, soil moisture and nutrient preservation whilst with a pH above 5.5 in the topsoil and 4.8 in the subsurface soil.
Properties of fertile soil for planting:
• Rich in nutrients that are necessary for plant nourishment; such as nitrogen, phosphorus, and potassium.
• Consists of minerals such as boron, chlorine, copper, iron, manganese, magnesium, sulfur, zinc, molybdenum which promote plant nutrition.
• Soil organic matter which improves the structure of the soil and helps the soil to stay moisturized.
• Has a pH level between 5.5 and 7.0.
• Has a good soil structure which means the soil is well-drained.
• Has a variety of micro-organisms which support plant growth.
• Has a thick layer of topsoil (often).
Acidic soil
• The soil either lacks phosphorus, magnesium or calcium.
Alkaline soil
• The soil either lacks zinc, copper or iron.
You can use this scale to see which minerals your soil has and does not depending on its pH value: There are plants suitable for different pH
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