Importance of water for crops |

Water is very important in Agriculture or for any living organism because of the vital functions it performs..!

The functions performed can be grouped into the following

A) Physiological role of Water

• The plant system itself contains about 90% of water
• Amount of water varies in different parts of plant as follows
• Apical portion of root and shoot >90%
• Stem, leaves and fruits – 70 – 90%
• Woods – 50 – 60%
• Matured parts – 15 – 20%
• Freshly harvested grains have the percentage of water as – 15 – 20%
• It acts as base material for all metabolic activities. All metabolic or  biochemical reactions in plant system need water.
• It plays an important role in respiration and transpiration
• It plays an important role in photosynthesis
• It activates germination and plays in important role in plant metabolism      for vegetative and reproductive growth
• It serves as a solvent in soil for plant nutrients
• It also acts as a carrier of plant nutrients from soil to plant system
• It maintains plant temperature through transpiration
• It helps to keep the plant erect by maintaining plant’s turgidity
• It helps to transport metabolites from source to sink

B) Ecological Role of Water

• It helps to maintain soil temperature
• It helps to maintain salt balance
• It reduces salinity and alkalinity
• It influences weed growth
• It influences atmospheric weather
• It helps the beneficial microbes
• It influences the pest and diseases
• It supports human and animal life
• It helps for land preparation like ploughing, puddling, etc.,
• It helps to increase the efficiency of cultural operations like weeding

Thus, due to its very important functions water can be called as ‘liquid Gold’. It is the most important input in agriculture

Further reading –

Author: agristudent

Team Agristudent is a young and dynamic team of Agriculture specialists who have acquired specialised knowledge in their respective subjects. Their mission is to create a unique online encyclopedia of agriculture, which can be useful to millions around the world as an online reference library

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