Question

Sow some seeds in the soil and arrange to water them by drip irrigation. Observe daily. (i) Do you think it can save water? (ii) Note the changes in the seed.

Answer 1

The seeds when irrigated via drip irrigation, cannot retain water but they use the water for growth.

However, some amount of water is retained which is not for retention purpose but for germination purpose.

The seed germinates and a small bud grows outwards from the seed, indicating the birth of a new plant.

We can save water as water is given only to plants.

Answer 2

Answer:

(i) Yes

(ii) The seeds can be observed to imbibe water and germinate earlier compared to the seeds irrigated using traditional irrigation methods.

Explanation:

Drip irrigation is a micro-irrigation system that conserves water and nutrients. In this method, water is allowed to drip slowly directly to the roots of plants, either from above the soil surface or buried below the surface. Here water is directly supplied into the root zone and minimizes evaporation.

Seeds irrigated using another method may lack nutrients as water loss occurred during irrigation may wash the nutrient of the soil. While drip-irrigated seeds will produce more crops due to nutrient-enriched soil.

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