Manures and fertilizers are required in fields to enrich the soil with the desirable nutrients. Manure helps in enriching the soil with organic matter and nutrients as it is prepared by the decomposition of animal and plant wastes. This improves the fertility and structure of the soil. This involves increasing the water holding capacity in sandy soil.
For example:
Green manure- it acts as a organic fertilizers by nourishing plants with nitrogen and phosphorous which helps in enhancing growth of plants.
On the other hand, fertilizers ensure a healthy growth and development in plants. They are a good source of macro-nutrients like nitrogen, phosphorus, and potassium. To get a correct amount of yield, it is advised to use a balanced combination of manures and fertilizers in the soil.
Their excessive use also reduces soil fertility. Hence, fertilizers are considered good for only short-term use.
