DAP mainly presents nitrogen and phosphorus. It can be essential to be sure a balanced nutrient program for plants by supplementing with other essential nutrients, including potassium, magnesium, and micronutrients. Soil Testing: To determine your soil’s nutrient content and pH, performing a soil test before applying any fertilizer is critical. https://dap-fertilizer-for-onions16048.blog-a-story.com/18327086/the-greatest-guide-to-npk-fertilizer-how-to-make