Did you know that mineral nitrogen (N-min) analysis is key for optimizing fertilizer use? This test measures nitrate and ammonium nitrogen in the soil, typically up to 100 cm deep, to help farmers determine the best amount of nitrogen to apply. By analyzing soil samples close to fertilizer application, farmers can pinpoint the nitrogen already available in the soil, alongside the nitrogen released from organic matter like manure. This helps in applying just the right amount of fertilizer needed for crops, avoiding excess use and saving costs. However, the accuracy of N-min analysis depends on soil and crop types, and works best in uniform fields. N-min can be your guide to more efficient and economical fertilization!