The crop harvest and quality results for soybean at pH 4 and moderate soil nutrition would likely be poor (category B). Soybeans require a slightly acidic to neutral pH range of 6.0-7.0 for optimal growth and productivity. A pH of 4 is extremely acidic and can inhibit nutrient uptake and overall plant health. Additionally, moderate soil nutrition may not provide the necessary nutrients for soybeans to thrive and produce a high-quality harvest. Overall, soybean yield and quality would likely be negatively impacted in these conditions.
