农学 >>> 土壤学 >>> 土壤生态学 土壤物理学 土壤化学 土壤地理学 土壤生物学 土壤耕作学 土壤改良学 土壤肥料学 土壤分类学 土壤调查与评价 土壤学其他学科 农业资源利用
搜索结果: 1-4 共查到土壤学 MEASURES相关记录4条 . 查询时间(0.113 秒)
The hazards from wind, sand, and soil erosion caused by human activities, such as residue slopes in abandoned urban mines, have resulted in a vicious circle of environmental degradation. Selecting t...
The article presents the initial part of the research of the efficiency of erosion and flood control measures designed in the experimental basin of the Němčicky stream. A long term observation of...
The Illinois Soil Nitrogen Test (ISNT) was developed for this purpose, and involves estimation of gaseous ammonia liberated by heating the soil with strong alkali in a Mason jar. Several studies have ...
This paper provides an economic sector level analysis of the effectiveness of different policy measures in decreasing nitrogen (N) and phosphorus (P) surpluses from agriculture in order to reduce nutr...

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...