USDA has revised or developed several conservation practice standards, including nutrient management, and published them in the Federal Register for public comment. USDA is seeking comments on all the practices through February 25, 2011. The nutrient management standard, code 590, helps producers and other landowners better manage nutrients on their agricultural operations. The standard sets minimum criteria for supplying nutrients for crop production while reducing impacts of non-point source pollution. It applies to all land where plant nutrients are applied to grow agricultural crops. Proper nutrient management planning stresses the importance of applying the right fertilizer at the right rate at the right time and in the right place. The revised standard promotes enhanced nutrient management planning activities at the state level.