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

作　　者：段震宇[1,2] 桑志勤[1,2] 王婷[1,2] 王友德[1,2] 陈树宾[1,2] 郭斌[1,2] 李玉梅[1,2] 

机构地区：[1]新疆农垦科学院作物研究所,新疆石河子832000 [2]谷物品质与遗传改良兵团重点实验室,新疆石河子832000

出　　处：《干旱地区农业研究》2013年第2期38-41,58,共5页Agricultural Research in the Arid Areas

基　　金：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)

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+79.56N-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 21kg,P2O55 kg,K2O 22 kg,在此配方组合下能够获得最佳产量7692.96 kg.667m-2。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.

关 键 词：新饲玉11号 回归模拟 产量 最佳氮磷钾配比 

分 类 号：S147.21[农业科学—肥料学]