不同用量氮磷钾肥对玉米生长速度及产量的影响

Effects of Different Amounts of Nitrogen Phosphorus and Potassium Fertilizer on the Growth Rate and Yield of Maize

以登海良玉99号品种玉米为研究对象,利用L9(33)正交试验设计12种氮磷钾肥搭配比例,研究不同量的氮磷钾肥对玉米生长速度及产量的影响。经分析发现,本试验条件下最适合登海良玉99号玉米的氮磷钾肥施用量为m(尿素)∶m(P2O5)∶m(K2O)=10∶8∶5,其中氮肥对玉米生长速度及产量的影响要高于其他两种肥料。

Taking Denghailiangyu No.99 maize as the research object,the L_(9)(3^(3))orthogonal experiment was used to design the collocation ratio of 12 kinds of N P K fertilizer,and the effects of different amounts of N P K fertilizer on the growth rate and yield of maize were studied.It was found that the most suitable nitrogen,phosphorus and potassium fertilizer application rate for the maize of Denghailiangyu No.99 was m(carbamide)∶m(P_(2)O_(5))∶m(K_(2)O)=10∶8∶5.The effect of nitrogen fertilizer on the growth rate and yield of maize was higher than that of other two fertilizers.