Final answer:
When evaluating irrigation needs, both soil texture and evapotranspiration must be considered to determine the correct amount of water for plant growth.
Step-by-step explanation:
When evaluating irrigation needs, several factors should be considered to ensure that plants receive an adequate amount of water without over-irrigation. Both soil texture and evapotranspiration are critical factors to be taken into account. Soil texture affects how quickly water moves through the soil and how much water the soil can retain. On the other hand, evapotranspiration is the sum of evaporation from the soil surface and transpiration from plants, both of which are influenced by the environment, such as temperature and humidity.
So, the correct answer to what should be considered when evaluating irrigation needs is c) both soil texture and evapotranspiration. Understanding these factors can assist in determining the amount of water needed for successful crop growth and preventing water waste.