| 段震宇,桑志勤,王婷,王友德,陈树宾,郭斌,李玉梅.新饲玉11号氮磷钾最佳施肥量及肥效模型拟合研究[J].干旱地区农业研究,2013,31(2):38~41 |
| 新饲玉11号氮磷钾最佳施肥量及肥效模型拟合研究 |
| Model simulation of optimal application rate of N, P and K fertilizers for “Xinsiyu 11” silage maize |
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| DOI：10.7606/j.issn.1000-7601.2013.02.08 |
| 中文关键词: 新饲玉11号 回归模拟 产量 最佳氮磷钾配比 |
| 英文关键词:Xinsiyu 11 regression modeling yield optimal fertilization ratio |
| 基金项目:新疆生产建设兵团农业科技攻关项目“高产、优质、专用玉米新品种选育”（2009GG07） |
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| 中文摘要: |
| 为了解决新疆地区青贮玉米高产施肥配比问题，本试验以青贮玉米品种“新饲玉11号”为材
料，采用3414试验方法，设计了不同的氮磷钾配比，在新疆农垦科学院试验地田间试验
研究玉米的氮、磷、钾肥料效应并配置相应的肥效函数，以筛选出适合当地青贮玉米高产的
最佳氮磷钾配比。结果表明：供试土壤中有效养分含量丰缺程度为N含量为低水平，K2O、
P2O5含量为中水平。14个处理中以N2P2K2处理的产量最高，产量为8066.79 kg·667m-2；用二次回归分析，得出氮磷钾的肥料效应函数方程为: Y=4659.93+79.5
6N-5.06N2+101.7P-33.81P2+286.4K-10.28K2+24.87NP+2.66NK-12.97PK；通过模型寻
优得出“新饲玉11号”的最佳施肥量为667m2施N 21 kg，P2O5 5 kg，K2O 22 kg，
在此配方组合下能够获得最佳产量7692.96 kg·667m-2。 |
| 英文摘要: |
| By using Xinsiyu 11 as material, and adopting 3414 method with different ratios of N-P-K, the experiment was conducted in the experimental field of Xinjiang Academy of Agro-reclamation Sciences to investigate
the effects of N, P and K fertilizers on silage maize, and to screen the optimal application ratio of N-P-K for high yield of silage maize in Xinjiang. The results showed that the content of available N was low, while the content of K2O and P2O5 was moderate in the tested soil. The yield of N2P2K2 was the highest (8066.79 kg·667m-2) among the 14 treatments. According to the analysis of quadratic regression, the fertilizer effect equation was Y=4659.93+79.56N-5.06N2+101.7P-33.81P2+286.4K-10.28K2+24.87NP+2.66NK-12.97PK. Through the optimization of the model, it was found that the optimum fertilization rate for Xinsiyu 11 was 21 kg N, 5 kg P2O5 and 22 kg K2O for every 667 m2, under which the theoretical yield was 7692.96 kg·667m-2. |
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