1.
Studies on the Effect of Different Fertilization Patterns on Soil Respiration and Soil Nutrients in Maize Ecosystem;
不同培肥模式对土壤呼吸和土壤养分变化的研究
2.
RESEARCH ON THE CHANGES OF SOIL NUTRIENTS IN THE FiELDS OF SHANXI AGR.UNI.
山西农业大学农作站土壤养分变化浅析
3.
Changes of Soil Nutrients in the Fields of Grain and Vegetables and the Reasonable Fertilization in Shanxi
山西省粮、菜田土壤养分变化规律与合理施肥
4.
Research on changing soil nutrients in intercropping system,its ecological and economic benefits
间作制度的土壤养分变化及生态、经济效益
5.
The effect of Larix understory vegetation on changes of soil nutrient
落叶松林下植被对土壤养分变化的影响
6.
Soil Nutrient Change and Improvement Measures of Paddy Rice Land in Jidong Coastal Area
冀东滨海稻区耕地土壤养分变化及改良措施
7.
Research on Litterfall Decomposition and Soil Nutrient in Agroforestry Systems in Purple Soil Area;
紫色土区农林复合系统落叶分解及土壤养分变化特征研究
8.
Soil Nutrients and Land-Use Change and Driving Force Research in the Town of the Region
镇域内土壤养分和土地利用变化及驱动力研究
9.
Impact of Land Use Type Changes on Soil Nutrinet in Small Watershed
小流域土地利用变化对土壤养分的影响
10.
Dynamic Changes of Soil Enzyme Activities and Nutrients in Cherry Rhizosphere
樱桃根际土壤酶活性与土壤养分动态变化及其关系研究
11.
The Spatial and Temporal Changes of the Farmland Soil Fertilities in the Zhongxiang City,Hubei Province
湖北省钟祥市耕地土壤养分时空变化分析
12.
Analysis of Nutrients Situation and Its Dynamic Variation in Tobacco Field Soil of Sanmenxia City
三门峡市烟田土壤养分现状及动态变化分析
13.
Changes of Nutrient Contents in Tobacco-Growing Soils of Kunming from 2002 to 2006
昆明市植烟土壤2002—2006年养分状况变化动态分析
14.
Studies on Dynamic Patterns of Soil Nutrients of Chinese Fir Plantation;
杉木人工林土壤养分动态变化规律研究
15.
Change and difference of soil nutrients for various regions in China
我国不同地区土壤养分的差异及变化趋势
16.
Study on Correlativity Change of Surface Soil Nutrients in Intensified Agricultural Regions
集约农区耕层土壤养分相关性变化研究
17.
The Soil Nutrients Levels and Annual Dynamic Changes of Laoshan Tea Gardens
崂山茶园土壤养分水平与年变化动态研究
18.
Seasonal Changes of the Nutrient of Litter-soil of Artificial Forest of Liquidambar formosana
枫香人工林枯落物和土壤层养分季节变化