温室番茄水肥耦合数学模型及其优化方案研究  

Water-fertilizer coupling effects and its optimization in greenhouse tomato production

作　　者：陈修斌[1] 潘林[1] 王勤礼[1] 谢鑫星[1] 

机构地区：[1]甘肃河西学院园艺系,甘肃张掖734000

出　　处：《南京农业大学学报》2006年第3期138-141,共4页Journal of Nanjing Agricultural University

基　　金：甘肃省教育厅科研资助项目(048B02)

摘　　要：采用三因素二次回归通用旋转组合设计,研究了灌水量、氮肥、钾肥的耦合效应对番茄的影响,得到番茄产量对三因素的回归数学模型。结果表明:三因素影响番茄产量的顺序依次为施氮量、灌水量、施钾量,各因素间存在交互作用。经计算机模拟得出,番茄产量达到最高值89.15.thm-2时,其对应的灌水量、施氮量和施钾量分别为2 637.2 m3.hm-2、374.1 kg.hm-2和51.6 kg.hm-2。对模拟结果进行的验证试验表明,模型优选所得到配施方案的番茄产量最高。Using quadratic general revolving combination design with 3 factors, the effects of irrigation, nitrogen and potassium fertilization on greenhouse tomato were investigated and quantified. The results showed that tomato yield was affected strongest by nitrogen, then by irrigation and potassium. There was interaction between each factor. Highest tomato yield was obtained （89. 15 t·hm^-2） when the quantity of irrigation, nitrogen and potassium were 2 637.2 m^3·hm^-2, 374. 1 kg·hm^-2 and 51.6 kg ·hm^-2, respectively, which agreed with the optimization result of the regression model.

关 键 词：温室番茄 水肥耦合 数学模型 优化方案 

分 类 号：S641.2[农业科学—蔬菜学]