杂交小麦超高产模式研究  

Study on selective mathematical models for high-yield hybrid wheat

作　　者：安成立[1] 张改生[1] 王寿山 岳秀琴[1] 王红[1] 杨明明[1] 唐涛 鱼晓玉 李长斌 

机构地区：[1]西北农林科技大学农学院,陕西杨凌712100 [2]陕西省渭南市临渭区人民政府,陕西渭南713300

出　　处：《中国农业大学学报》2012年第2期25-30,共6页Journal of China Agricultural University

基　　金：国家"863"重大专项(2001AA241041;2002AA207004);陕西省科技攻关项目资助(2009K02-05)

摘　　要：为探求杂交小麦超高产栽培模式,运用农业生态学和统计学原理,采用三因子二次饱和D-最优设计方案,选取对小麦产量影响较大的播期x1、播量x2和施肥量x3为调控因子,以每hm2产量y为目标函数,研究小麦超高产栽培模式。结果表明:在试验设计条件下,影响小麦产量的3个生态因素权重依次为施肥量x3>播量x2>播期x1;目标产量为7 500～9 000kg/hm2时,杂交小麦高产的最佳农艺方案为:施肥量x3(纯N和P的质量,m(N)∶m(P2O5)=1∶1)为208.24～301.88kg/hm2,播量x2为218.28～301.29万粒/hm2,播期x1为10-04—10-19。The study for developing a high-yield model of hybrid wheat was carried out by using the principle of agricultural ecology and the qualified design of three factor square saturated D,in which the factors of sowing date（x1）,sowing quantity（x2） and amount of fertilizer application（x3） were taken as the adjusting factors,and the yield per hectare（y） as target function,through which a mathematical model for high yield cultivation of hybrid wheat was obtained.The result indicated that under the condition of experiment design the factors affecting hybrid wheat yield were in sequence of amount of fertilizer application x3,sowing quantity x2,and sowing date x1;when the target yield was from 7 500~9 000 kg/hm2,the optimum formula of hybrid wheat was as follows：fertilizer application x3 of 208.24~301.88 kg/hm2（m（N）∶m（P2O5）=1∶1）,sowing quantity x2 of 218 2.8~301 2.9×104 seed/hm2 and sowing date x1 from 4 to 19 October.

关 键 词：杂交小麦 产量 数学模型 农艺方案 

分 类 号：S512[农业科学—作物学]