Question

utilizing ultisols for agriculture requires. a. extensive irrigation b. fertilizer to balance the high alkalinity of the soil c. adding organic matter to supplement the shallow horizons d. fertilizer to replace nutrients that leach from the soil please select the best answer from the choices provided. a b c d

Explanation:

Ultisols are acidic soils. To use them for agriculture, the high - acidity needs to be addressed. Adding organic matter helps improve soil structure and fertility, and can also buffer soil pH to some extent. Extensive irrigation doesn't directly deal with soil chemical properties. Adding fertilizer to balance alkalinity is incorrect as Ultisols are acidic, not alkaline. Fertilizer to replace nutrients that leach is a secondary concern compared to improving the overall soil condition.

Answer:

c. adding organic matter to supplement the shallow horizons