玉米优化施肥模型的建立和施肥参数的确定  

Building of Model for Optimal Fertilization and Determine of Fertilization Parameters of Maize

作　　者：杨俊兰 范富[2] 侯迷红[2] 张庆国[2] 邰继承[2] YANG Jun-lan;FAN Fu;HOU Mi-hong;ZHANG Qing-gno;TAI Ji-eheng(Livestock Station of Znoyihou Banner, Horchin, Tongliao 028100, China;College of Agriculture, Inner Mongolia University for Nationalities, Tongliao 028043, China)

机构地区：[1]通辽市科尔沁左翼后旗畜牧工作站,内蒙古通辽028100 [2]内蒙古民族大学农学院,内蒙古通辽028043

出　　处：《内蒙古民族大学学报（自然科学版）》2017年第6期503-509,共7页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：内蒙古自然科学基金项目(20080404MS0607);内蒙古民族大学科学研究项目(MDX2008017);内蒙古民族大学科研创新团队支持计划资助项目(NMD1003)

摘　　要：2009—2011年在通辽市灰色草甸土上进行多点试验,采用"3414"二次回归最优试验设计方案,研究N、P、K肥配施对玉米产量的影响.结果表明,玉米产量与肥料用量之间的数学模型为Y=752.45+81.39X1+136.81X2+62.37X3-25.08X12-44.91X22-18.65X32+14.51X1X2+2.28X1X3+21.36X2X3,当施尿素为44.16 kg/667 m2、磷肥(过磷酸钙)66.09 kg/667 m2、钾肥(硫酸钾)22.50 kg/667 m2时产量为1148.596 kg/667 m2.土壤养分校正系数分别为氮0.71,磷0.84,钾0.42,其肥料利用率为氮肥45.7%,磷肥19.6%和钾肥38.0%.The impact of balanced application of N,P,K fertilizer was studied on maize yield using a ＂3414＂ optimal design quadratic regression test program,based on the soil testing and fertilizer field trials on gray meadow soil in Tongliao City from 2009 to 2011. The results showed that the mathematical model between maize yield and fertilizer was Y=752.45＋81.39 X1＋136.81 X2＋62.37 X3-25.08 X12-44.91 X22-18.65 X32＋14.51 X1 X2＋2.28 X1 X3＋21.36 X2 X3.The fitting results of simultaneous quadratic equation in three unknowns indicated that the economic yield of maize was the highest（1148.596 kg/667 m2）after applications of Urea at 44.16 kg/667 m2,Superphosphate at 66.09 kg/667 m2 and Potassium sulfate at 22.5 kg/667 m2. The results also showed the soil correction factor of N,P2 O5 and K2 O were 0.71,0.84 and 0.42,the utilization rates of N,P2 O5 and K2 O in the season were 45.7,19.6 and 38%.

关 键 词：玉米 优化施肥模型 施肥参数 

分 类 号：S156[农业科学—土壤学]