Factors which influence the practice of irrigation include all except
Answer Details
The practice of irrigation is influenced by various factors that affect the availability of water for crop growth. One of the primary factors is unreliable rainfall. When the amount and timing of rainfall are unpredictable or insufficient, irrigation becomes necessary to maintain crop growth.
Another factor is the need for more food production. Irrigation can significantly increase crop yields, making it an essential tool for farmers who need to produce more food to meet the increasing demand.
Additionally, the presence of fertile soil can also influence the practice of irrigation. If the soil is naturally rich in nutrients, it may require less water to support crop growth. However, even fertile soil may not be enough to sustain crops during extended dry periods, making irrigation necessary.
High rainfall, on the other hand, is not typically a factor that influences the practice of irrigation. In areas where rainfall is plentiful, irrigation may not be necessary or may even be counterproductive, as excess water can cause problems such as waterlogging and erosion. Therefore, the option "high rainfall" can be considered the correct answer as it does not impact the practice of irrigation.