Sprinkler irrigation is a method of irrigating crops by spraying water over them in a manner similar to rainfall. Let's examine each statement:
(A) Excessive topsoil erosion is involved: This is not correct. Sprinkler irrigation is designed to minimize soil erosion compared to methods like flood irrigation. However, erosion can still occur if the system is not managed properly.
(B) Fertilizer can be applied with water: This is correct. Fertilizers can be mixed with water and applied simultaneously during sprinkler irrigation, a method known as fertigation.
(C) No excess cost of land preparation is involved: This is also correct. Sprinkler irrigation typically does not require major changes in land preparation compared to surface irrigation methods. It’s relatively cost-effective in terms of land preparation.
(D) Evapotranspiration loss is minimum: This is not correct. Sprinkler irrigation does not necessarily minimize evapotranspiration loss, as water is sprayed over the plants, leading to some evaporation before it reaches the soil.
Thus, the correct answers are: (B) and (C).