1.
Effects of Pretreatment on Content of Soil NO_3-N,NH_4-N
不同前处理条件对土壤NO_3-N、NH_4-N含量影响的研究
2.
Contents of Soil N,P and K Under Different Land Uses in Estuary Wetland of Min River
闽江口湿地不同土地利用方式下表层土壤N,P,K含量研究
3.
Effect of Element Sulphur and Dicyandiamide on Leaching Loss of NO_3～--N from Vegetable Soil;
元素硫、双氰胺及其组合对蔬菜地土壤NO_3～--N淋失的影响及机理研究
4.
Soil Nitrate Leaching Risk Assessment in Rubber Plantations in Hainan and Analysis of Its Influencing Factors
海南胶园土壤NO_3~--N淋洗风险评估及影响因素分析
5.
Effects and Measures of NH_4～+-N and NO_2～--N in Leachate on Soil and Groundwater;
渗滤液中NH_4～+-N和NO_2～--N对土壤和地下水的影响及对策
6.
The Effect of Different C Sources on Microbe Immobilization by Supplemental N;
不同C源对外源N土壤微生物固持的影响
7.
The Variations of Soil Microbial Biomass N、P in an Oak Forest and a Pine Plantation in Xiashu Experinmental Site;
下蜀栎林与松林土壤微生物量N、P的研究
8.
Responses of soil microbial biomass C and N and respiratory quotient(qCO_2) to revegetation on the Loess Hilly-Gully region
黄土丘陵区草地土壤微生物C、N及呼吸熵对植被恢复的响应
9.
The chloroform fumigation-incubation method was used to measure the biomass-C and-N ofsoils with different fertility levels.
应用氯仿熏蒸培养法测定不同肥力水平的土壤生物量-C和-N。
10.
N and S Transformation Characteristics of US in Soils and Its Crop Effect;
加硫尿素N、S在土壤中的转化及其作物效应研究
11.
Effect of Water Saving and Nitrogen Controlling on Nitrogrn Balance and No_3~--N Leaching of Different Soil-Vegetable Systems Ningxia;
节水控氮对宁夏不同土壤—蔬菜体系中氮素平衡及NO_3~--N淋失的影响
12.
The Effect of N Fertilizer Applied on the Content of Soil NO_3~--N Remained and the Space Distribution of Winter Wheat Roots;
氮肥施用对冬小麦土壤残留NO_3~--N含量及根系分布影响
13.
Effects of Phosphate Fertilizer Applied to Topsoil on the Movement and Residual Effect of Nitrate Accumulated in Deep Soil Profile
耕层施磷对土壤剖面深层累积NO_3~--N运移及后效的影响
14.
Influence of non-tillage and stubble on soil microbial biomass and enzyme activities in rain-fed field of Inner Mongolia
免耕与留茬对土壤微生物量C、N及酶活性的影响
15.
Effects of Amendment C/N Ratio on Soil Organic Carbon Mineralization of Meadow Marshes in Sanjiang Plain
三江平原草甸湿地土壤有机碳矿化对C/N的响应
16.
Changes in pools and heterogeneity of soil organic carbon,nitrogen and phosphorus under different vegetation types in Karst mountainous area of central Guizhou Province,China
贵州喀斯特山区不同植被下土壤C、N、P含量和空间异质性
17.
Determination of 30 major and trace elements in soil samples by X-ray fluorescence spectrometry
X射线荧光光谱法测定土壤样品中C和N等30个主次痕量元素
18.
Effect of Se Application on Contents of Nitrogen,Phosphorus and Potassium in Tartary Buckwheat and Content of Available Nutrients in Soil
施硒对苦荞N,P,K营养元素和土壤有效养分含量的影响