Question

Biology
How macronutrients and micronutrients affect the plant growth, vitality and productivity?
Why different types of crops were grown in different region?
What is the role of mineral in plants?
Suggest three methods of replenishing nutrients in the soil.

Answer 1

Answer:

Explanation:

(1)=> Macronutrients : These nutrients are responsible for formation of new plant cells and organize it into the plant tissue. growth, vitality and productivity of plant will badly affected without these nutrients. For e.g.

• Nitrogen affects the growth of the plant’s leaf and helps in chlorophyll production.

• Phosphorous helps for the survival of plant and in the growth of roots and flowers.

• Potassium strengthen the plants and helps to keep it healthy.

• Sulfur helps in seed formation as well as amino acids, proteins, enzymes and vitamins etc.

• Calcium helps in cell wall formation and it's growth for protection against disease.  

=> Micronutrients: these nutrients are required in much smaller amounts by plants.e.g.

• Iron and Manganese is necessary for chlorophyll formation.  

• Manganese and Copper is also act as a enzyme activator for the growth of plant.

• Nickel is needed for viable seed and for life cycle of plant and thus, affect it's viability.    

• Zinc and Chlorine is necessary for root and plant growth.

• Boron helps in pollination, fertilization and regulates the metabolism

(2) Different crops are grown in different regions because of topography of soil and climatic condition as it play a crucial role in agricultural.  

(3) Minerals are essential elements for supporting normal growth and reproduction in plants. plants can not complete their life cycle without it.

(4) Methods of replenishing nutrients in the soil includes crop rotation, use of fertilizers, Liming, Cover cropping, Bush fallowing, organic or inorganic manuring, etc.

Answer 2

Micronutrients and macronutrients are both helpful for the plant growth. Different plants have different criteria for growth. The minerals are helpful in preparation of food by the plants.

EXPLANATION:

• Macronutrients are required in larger amount whereas, micronutrients are required in less amount. Nitrogen helps in growth, phosphorus helps in survival, sulfur helps in preparation of seed. These are some of the macronutrients.

• Iron helps in chlorophyll, zinc is needed for root growth, these are some of the micronutrients.

• Minerals helps in plant to complete their life cycle. Topography, climate, soil are some factors which involve in plants growth criteria.

• Different plants need different condition so, different types of crops were grown in different region.

For replenishment of soil:

• Manuring

• Crop rotation or soil manipulation

• Fertilizer application