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:肖焱波[1] 杨丛梅[1] 高强[2] 贾良良[3]
机构地区:[1]云南民族大学化学与生物技术学院,昆明650031 [2]吉林农业大学资源与环境学院,长春130118 [3]河北省农林科学院农业资源环境研究所,石家庄050051
出 处:《玉米科学》2009年第1期117-119,123,共4页Journal of Maize Sciences
基 金:中德合作项目“含硝化抑制剂复合肥的田间效果研究”;“948”重大国际合作项目“养分资源综合管理技术”
摘 要:2007年在吉林省和河北省研究了恩泰克稳定性长效复合肥对玉米产量的影响,比较了习惯施肥与恩泰克投入产出经济效益。结果表明,恩泰克比习惯施肥降低了氮肥用量,玉米产量与习惯施肥相当或略有增加,增产幅度9%;恩泰克一次施用即可满足玉米整个生育期的需求,可减少施肥的劳动力投入,经济效益好,应用前景广阔。The field experiment was carried out in Jilin and Hebei to investigate the effects of ENTEC on yield increase for maize at main maize production areas in 2007, and benefit and cost at each site were estimated thereafter. The results showed that ENTEC increased maize yields over traditional fertilizer with percentage at 9%. Rate of nitrogen of ENTEC applied was less than that of traditional fertilizer, and times of fertilizer application were reduced. Although cost of ENTEC was higher than traditional fertilizer, the benefit of ENTEC was also higher in Jilin which compensated for the higher cost of ENTEC input. In summary, that fertilize maize with ENTEC is economical viable which offers a new perspective for maize nutrients management.
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:216.73.216.117