农学 >>> 农学总论 作物学 园艺学 土壤学 植物保护学 农药学 林学 畜牧学 兽医学 水产学
搜索结果: 1-3 共查到农学 Cropping area相关记录3条 . 查询时间(0.25 秒)
New methods for low-cost and labour-saving of paddy rice culture in the east flat area of Gunma Prefecture were evaluated. Economics was evaluated by indisensable cost per 10a. Labor efficiency was e...
We studied the method of raising paddy rice seedlings using the single whole basal fertilizer application to the nursery box in the rice-wheat double cropping area in Gunma Prefecture. The seedlings ...
Selected problems of the regional differentiation of maize production for silage and grain in Poland were presented in the paper. Data from the Central Statistical Office from 2000-2006 worked up in a...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...