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多年多点试验研究表明:河西走廊春小麦100 kg 籽粒吸N量为2.964 kg,吸P量为0.4177 kg;N、P化肥利用率分别为39.8% 和10.0% ;土壤供N率57.0% ,供P率83.3% ;春小麦农艺配方m (N)∶m (P2O5)= 1∶0.5为宜。
Years of multi-point experimental study showed that the N uptake by 100 kg spring wheat in Hexi Corridor was 2.964 kg and the P uptake was 0.4177 kg. The N and P fertilizer utilization rates were 39.8% and 10.0% respectively. Soil For N rate of 57.0% for the P rate of 83.3%; spring wheat agronomic formula m (N): m (P2O5) = 1: 0.5 is appropriate.