摘要
应用二次回归通用旋转设计试验方法,研究麦田套种绿肥叶面喷施微肥(Mo、Zn、Cu、Mn)与产草量的关系,建立了数学模型,找出了各因素单效应及互作对产量的作用规律。结果表明:各因素对绿肥鲜草产量的作用顺序依次是 Mo>Mn>Zn>Cu。预测鲜草产量4.8万 kg/hm^2以上,溶液喷施量7 5 0 kg/hm^2,其浓度分别为(NH_4)_6Mo_7O_(24)0.284%～0.325%、ZnSO_4 0.282%～0.354%、CuSO_4 0.048～0.061%、MnSO_4 0.242%～0.278%。
The design of quadrated generalrotatin regression was used in this test and the relations of fresh forage yields to foliage spray were studied with four trace elements(Mo、Zn、Cu、Mn)on green manure in wheat field.The function model was established.The regularity of main and mutual effect of all factors with yield was found.The results showed that the order of each factor affecting fresh green manure yield was Mo>Mn>Zn>Cu.For a prediction yield of fresh forage over 48000kg/hm^2,the spray solution measured by this model should be 750kg/hm^2,in which the concentration of(NH_4)_6MO_7O_(24),ZnSO_4,CuSO_4 and MnSO_4 will be 0.284%～0.325%,0.262%～0.354%,0.048%～0.061 % and 0.242%～0.278% respectively.
出处
《草业科学》
CAS
CSCD
北大核心
1996年第2期61-64,共4页
Pratacultural Science
