Question

11. What is rainwater harvesting?
12. What is drip irrigation? Why is it advantageous?plz give me fast answer please​

Answer 1

Answer:

Rainwater harvesting is the collection and storage of rain, rather than allowing it to run off. Rainwater is collected from a roof-like surface and redirected to a tank, cistern, deep pit, aquifer or a reservoir with percolation. Dew and fog can also be collected with nets or other tools.

Drip irrigation is a type of micro-irrigation system that has the potential to save water and nutrients by allowing water to drip slowly to the roots of plants, either from above the soil surface or buried below the surface. The goal is to place water directly into the root zone and minimize evaporation.

Answer 2

Answer:

11) Rainwater harvesting is the simple process or technology used to conserve Rainwater by collecting, storing, conveying and purifying of Rainwater that runs off from rooftops, parks, roads, open grounds, etc. for later use.

12) Drip irrigation is a type of micro-irrigation system that has the potential to save water and nutrients by allowing water to drip slowly to the roots of plants, either from above the soil surface or buried below the surface. The goal is to place water directly into the root zone and minimize evaporation. Drip irrigation systems distribute water through a network of valves, pipes, tubing, and emitters. Depending on how well designed, installed, maintained, and operated it is, a drip irrigation system can be more efficient than other types of irrigation systems, such as surface irrigation or sprinkler irrigation.

The advantages of drip irrigation are:

Fertilizer and nutrient loss is minimized due to a localized application and reduced leaching.

Water application efficiency is high if managed correctly.

Field leveling is not necessary.

Fields with irregular shapes are easily accommodated.

Recycled non-potable water can be safely used.

Moisture within the root zone can be maintained at field capacity.

Soil type plays a less important role in the frequency of irrigation.

Soil erosion is lessened.

Weed growth is lessened.

Water distribution is highly uniform, controlled by the output of each nozzle.

Labour cost is less than other irrigation methods.

Variation in supply can be regulated by regulating the valves and drippers.

Fertigation can easily be included with minimal waste of fertilizers.

Foliage remains dry, reducing the risk of disease.

Usually operated at lower pressure than other types of pressurized irrigation, reducing energy costs.