冬小麦与夏玉米轮作肥料效应模型的校验  

Verification of Fertilization Model and Recommended Fertilization in the Crop Rotation of Winter Wheat and Summer Maize

作　　者：王新民[1] 介晓磊[1] 陈士林[2] 侯彦林[3] 李自刚[1] 

机构地区：[1]郑州牧业工程高等专科学校,河南郑州450002 [2]中国医学科学院药用植物研究所,北京100094 [3]中国科学院研究生院资源与环境学院,北京100039

出　　处：《安徽农业科学》2008年第10期4181-4184,共4页Journal of Anhui Agricultural Sciences

基　　金：河南省杰出青年基金项目(074100510018);河南省科技攻关项目(0624040003)资助

摘　　要：[目的]筛选出最优的施肥模型，确定推荐施N量。[方法]在冬小麦／夏玉米轮作中设计了8个水平N肥肥效试验，利用2年试验数据采用4种模型对冬小麦／夏玉米的肥料效应进行拟合。[结果]冬小麦和夏玉米的肥料效应方程用线性加平台、二次加平台和二次多项式模型进行拟合性检验的效果都达到了极显著水平。2001～2002年冬小麦和2003年夏玉米N肥肥料效应模型以线性加平台模型为最优，推荐施N量分别为366．6和400．4k／hm^2；2002～2003年冬小麦和2002年夏玉米的N肥肥料效应模型以二次加平台模型为最优，但其产量的增加值和经济效益以线性加平台模型为最高，其推荐施N量分别为400．6和409．7kg/hm^2[结论]线性加平台模型的肥料效应最优，可作为N肥肥料效应模型的最佳选择。[Objective] The research aimed to screen out the optimum fertilization model and confmn the recommended application amount of N. [Method] An 8-level N fertilizer efficiency test was designed in the crop rotation of winter wheat and summer maize. Based on the experimental data in 2 years, the fertilizer effect of winter wheat and summer maize rotation was fitted by using 4 kinds of models. [Result] The fitting test effect of fertilizer ef- feet equitation for winter wheat and summer maize rotation by using linear plus plateau, quadratic plus plateau and quadratic polynomial models all reached extremely significant level. The optimum N fertilizer effect model for winter wheat in 2001 - 2002 and for summer maize in 2003 was linear plus plateau and their recommended N application rate were 366.6 and 400.4 kg/hm^2 resp. The optimum N fertilizer effect model for winter wheat in 2002 - 2003 and for summer maize in 2003 was quadratic plus plateau, but their yield increase and the economic benefits of linear plus plateau was highest and their recommended N application rate were 400.6 and 409.7 kg/hm^2. [Conclusion] The fertilizer effect of linear plus plateau was best and it could be taken as the optimum selection as N fertilizer effect model.

关 键 词：冬小麦 夏玉米 施肥模型 相关系数 推荐施N量 

分 类 号：S344.1[农业科学—作物栽培与耕作技术]