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Key Technical Points and Operation Methods for Conservation Tillage of Spring Maize
Maize is a high-yield crop with a relatively large fertilizer requirement and is also very sensitive to medium and trace element fertilizers. Rational fertilization is essential to meet the nutrient needs of maize throughout its entire growth period. According to experiments, producing 100 kg of maize grain requires 2.5 kg of nitrogen, 1 kg of phosphorus, and 2.1 kg of potassium. If the yield is 500 kg of maize per mu, then 3... kg of urea is needed per mu.