Tilizing 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

What is the importance of having the us forest service, the bureau of land management, the us fish and wildlife service, and the national park service? to manage land resources for conservation and the development of natural resources to manage land resources for conservation and the development of urban areas to preserve historical landmarks and manage the development of urban areas to preserve historical landmarks and manage the development of rural areas