What is irrigation? Describe two methods of irrigation which conserve water. Name three natural methods of replenishing the nutrients of the soil. Are these natural methods sufficient to maintain the fertility of the soil? What are the three steps involved in the preparation of soil? Explain the manual method of removing weeds. Give three reasons. Why water is important for plants?
Answers
Answer:
Supply of water to crops at appropriate intervals is called irrigation. The time and frequency of irrigation varies according to different seasons, crops, and soil types.
Two methods of irrigation which help in conservation of water are:
†’ Sprinkler system: This system is more useful on uneven land, having fewer water supplies. In this method, water is supplied using pipes to one or more central locations within the field. When water is allowed to flow under high pressure with the help of a pump, it gets sprinkled on the crops.
†’ Drip system: In this system, water is delivered at or near the roots of plants, drop by drop. This is the most efficient method of irrigation as there is no wastage of water at all. This method is important in areas where water availability is poor.
Explanation:
Describe two methods of irrigation which conserve water. Supply of water to crops at appropriate intervals is called irrigation. ... †' Drip system: In this system, water is delivered at or near the roots of plants, drop by drop. This is the most efficient method of irrigation as there is no wastage of water at all.
Answer: The process of watering the crops is called irrigation. Two methods of irrigation are: (i) Sprinkler system : This system is used on the uneven land where less water is available. ... (ii) Drip irrigation: This system is used to save water as it allows the water to flow drop by drop at the roots of the plants.