Which of the statements given below is are correct 1 All crops need moisture 2 The excess of water i...........

Geography Irrigation

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Which of the statements given below is/are correct?

1. All crops need moisture.

2. The excess of water in the soil leads to stunted growth of plants.

3. Soil drought is a condition in which the amount of water needed for transpiration

and direct evaporation exceeds the amount of water available in the soil.

Choose the correct answer from the code given below:

1&2 only

1&3 only

1 only

All the above

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Explanation:

All crops need moisture. Within wide temperature limits, moisture is more important than any other climatic factor in crop production. There are optimal moisture conditions for crop development just as there are optimal temperature conditions.The excessive amount of water in the soil alters various chemical and biological processes, limiting the amount of oxygen and increasing the formation of compounds that are toxic to plant roots. Therefore, the excess of water in soil leads to stunted growth of plants. Drought has devastating consequences on the crops, their yields and production. Soil drought has been described as a condition in which the amount of water needed for transpiration and direct evaporation exceeds the amount of water available in the soil.