摘要
采用划分区组的二次回归正交旋转组合设计方法，对贵阳地区影响小麦产量较大的４个主要栽培因子———基本苗及Ｐ，Ｋ，Ｎ肥用量进行系统的综合研究，建立起关于产量的数学模型；并通过计算机模拟寻优，筛选出贵阳地区小麦不同途径高产的综合农艺方案，翌年进行田间验证，证明贵阳地区小麦高产是多途径的，通过分蘖成穗为主（途径Ⅰ）、茎蘖并重成穗（途径Ⅱ）、主茎成穗为主（途径Ⅲ）均可获得６３５０ｋｇ／ｈｍ２以上的产量。提出了贵阳地区小麦多途径高产的观点和配套技术体系。
By means of the multi quadric orthogonality rotational design was applied at the experiment, we got a chance to do synthetic researches on four main cultural factors which contained basic seedling number,application fo P,K and N. According to the establishing of mathematical model about yield, the analyzing of yield equation and relationship between each cultural factor and yield, the super searching after making model simulation by computer, the determining of the optimum composition of modeled cultivation management from different high yield ways, the results indicated that it was practicable to obtain wheat high yield in varied ways in Guiyang. We got the yield beyond 6 350 kg/hm 2 through which was known as “Regarding tillering ears as their main part”(named Path One),“Tillering and main stem being equally important in forming ears”(named Path Two), “Regarding main stem ears as their main part”(named Path Three).We established theories of wheat high yield in varied ways and their accessory technical systems in Guiyang.
出处
《山地农业生物学报》
1998年第6期311-317,326,共8页
Journal of Mountain Agriculture and Biology
基金
贵州省科委基金
关键词
小麦
多途径高产
回归试验
配套技术
wheats high yield in varied ways relapsing fever computerized simulation mathematical models
