Bio Plants

Topics: Nitrogen, Nutrient, Carbon dioxide Pages: 2 (406 words) Published: March 20, 2013
Fertilizers are essential in plant growth due to the lack of some nutrients in the soil. They contain three distinct categories which are the primary nutrients, secondary nutrients and metals. (hazri). In order for a plant to develop growth, the basic needs of carbon (C), hydrogen (H), and oxygen (O) are required which are available in the air and water. Also, a boost of macronutrients are also essential for plant growth which are obtainable from chemical fertilizers mainly nitrogen (N), phosphate (P), and potassium (K) - often referred as ‘potash’ in a salt form. (“What are fertilisers,” 2010). They are equally rich in these nutrients and convenient to obtain from nurseries. As for the secondary nutrients present in these chemical fertilizers, it contains sulphur (S), magnesium (Mg), calcium (Ca), and sodium (Na) and metals (micronutrients) such as copper (Cu), ferum (Fe), boron (B), zinc (Zn) and manganese (Mn). (hazri).

Nitrogen is one of the most needed nutrient in plants as it promotes growth such as leaf size and its quality and development of fruit and seeds in flowering plants. (nscu). It also plays a huge role in metabolic processes such as protein synthesis and photosynthesis. Photosynthesis is a process where by plants uses light energy to convert carbon dioxide present in the air into chemical energy, or food such as carbohydrates.

6CO2 + 12H2O + 672K energy -> C6H12O6 + 6H2O + 6O2

Lacking of this nutrient would cause retardation in growth, and the plant may wilt overtime. However, it would only occur if chemical fertilizers and nutrients from the soil are absent and depleted. With the aid of chemical fertilizers in correct amounts, plants will have sufficient nitrogen to carry out these metabolic processes in plant growth.

Plants need these nutrients to grow, but too much of fertilizers applied may deter growth as it affects soil acidity, which is one of the factors of plant growth. the nitrogen element present in excess fertilizers can...
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