Cultural practices are of value in management of nutrients, weeds, diseases, or insects.
The goal of a sound fertility program is to supply adequate nutrients with optimum timing for maximum economical crop yield, while avoiding excesses that can degrade water quality or adversely affect crop or soil quality. 5 pts 2. Fields have been evaluated with an appropriate soil test for nutrient status and pH for the current year. 10 pts 3. Fertilizer is applied in accordance with current soil test results and with expected uptake of nutrients and crop yield, giving credit for nitrogen supplied by organic matter, compost, manure and cover crops.