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不同施氮水平影响到植物内养份含量的变化，在返青期以前，植株体内全氮含量较高，从返青以后到乳熟阶段，体内含量呈直线下降，CK和15N更为明显。全P含量CK和15N偏低，25N和35N相对较高。全钾含量则较为稳定。随着施肥水平的提高，叶面积和干物重都逐渐增大。不同施肥水平对分蘖和有效穗有很大的影响。，以25N表现较为适宜。在25N以下，每穗实粒数随施氮量的增加而增多，而千粒重则随着施氮量的增加而下降。产量结果表明：增施氮肥的增产效果是极显著的，但各氮肥处理之间却无显著性差异。从增产效果看，以15N最好，25N次之，35N较差；但从增产效应看，25N增产效应最大。
Different nitrogen levels affected the changes of nutrient contents in plants. Before turning green, the content of total nitrogen in plants was higher. After returning to greening, the content in plants decreased linearly while CK and 15N were more obvious. Total P content CK and 15N low, 25N and 35N relatively high. Total potassium content is more stable. With the increase of fertilization level, leaf area and dry matter weight increased gradually. Different fertilization levels have a significant impact on tillering and effective panicles. , 25N performance is more appropriate. Under 25N, the grain number per panicle increased with the increase of nitrogen application rate, while the 1000-grain weight decreased with the increase of nitrogen application rate. Yield results show that: increasing nitrogen fertilizer yield effect is extremely significant, but no significant difference between the nitrogen fertilizer treatment. From the effect of increasing production, the best is 15N, the second is 25N, while the second is 35N. However, from the perspective of increasing production, the yield increase of 25N is the largest.