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
机构地区:[1]吉林农业科技学院,吉林132101 [2]安图农业推广总站,吉林安图133000
出 处:《吉林农业科学》2007年第2期14-15,18,共3页Journal of Jilin Agricultural Sciences
摘 要:通过对常规露地直播栽培、比空栽培、育苗移栽、地膜覆盖4种不同玉米栽培方式的比较研究。结果表明:育苗移栽和地膜覆盖栽培使玉米物候期提前、穗部性状较为整齐、后期叶面积指数下降慢和群体质量较好,有较明显地增产效果,如果在适当的玉米收购价位,将使农户得到较好的经济效益。The growing traits were studied and economic benefit of planting maize were compared under normal planting, interval planting, fostering seedling transplanting and plastic covering. Results of the experiment showed that the growth and development of maize were moved up covering. fostering Uniformity of ear trait was improved and the leaf area seedling by fostering seedling transplanting and plastic index dropped slowly in late of the season. In transplanting and plastic covering treatment, population structure was excellent and yield of maize was obviously improved. If the price was reasonable, maize cultivation could bring farmers more economic benefit.
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:216.73.216.147