检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:张文忠[1] 宋殿珍[1] 栗红生[1] 刘景秀[1] 杨国英[1]
机构地区:[1]山西省农业科学院谷子研究所,山西长治046011
出 处:《山西农业科学》2009年第3期50-53,共4页Journal of Shanxi Agricultural Sciences
基 金:山西省科技产业化环境建设项目(051001-4)
摘 要:在中等肥力旱地上,以影响玉米产量较大的肥料和密度两个因子为对象,研究了长玉16玉米的增产潜力与肥料、密度综合效应。结果表明,长玉16抗旱、抗倒伏性强,耐瘠、耐肥力好,丰产、抗病性突出。公顷产量11 700 kg左右的肥料、密度组合为:施N,P纯养分225~450 kg/hm2,N∶P为2∶1,密度4.95万~5.45万株/hm2。对肥料、密度与产量的关系配置了二元二次效应方程,各因子对产量的影响程度为肥料>肥料×密度>密度。In middle fertility dryland, the impact to corn production of fertilizer and density factor to Changyu 16 maize and fertilizer production potential of the combined effect was conducted. The results showed that: Changyu 16 was drought-resistant, lodging strong resistant, tolerant to poor soil and fertility, high-yielding, outstanding disease resistant. Fertilizer application for hectare output around 11 700 kg is the optimum combination of nitrogen and phosphorus-nutrients 225 - 450 kg/hm^2, nitrogen and phosphorus in ratio of 2 : 1 and density 49 500 - 54 500 / hm^2. And the production of fertilizer on the relationship between the configuration of the dual effect of the second equation, the factors on the yield were in an order of fertilizer 〉 fertilizer×density 〉 density.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.229