accumulation soil

The station uses excavation . The entrance side of the station main tunnel is high backfill accumulation soil slope . The geological conditions are poor .

本车站为暗挖车站，车站主体隧道进洞端为高回填堆积土边坡，地质条件差，国内无可借鉴经验，施工难度大。

Effects of air settlement on heavy metal accumulation in soil

大气沉降对土壤重金属累积的影响

Salt Accumulation in soil during the Development of in Tarim Basin

塔里木盆地盐渍土开发中搬运盐聚层问题的研究

The Decomposition and Accumulation of Soil Organic Matter under Film Mulching

外面的覆盖物或包装。地膜覆盖下土壤有机质的分解与积累

Analysis of the relationship between ground-water and salts accumulation in soil

土壤积盐与地下水关系的分析

Mineral nitrogen content and accumulation in soil profiles under sunlight greenhouse cultivation

日光温室土壤剖面矿质态氮的含量、累积及其分布特性

Fertilization practices are important measures to affect the accumulation of soil carbon and nitrogen .

施肥是影响农田土壤碳氮累积的重要措施之一。

Effect of New Type Fertilizers Application on Accumulation of Soil Nitrate Nitrogen in the Maize Season

新型肥料施用对玉米季土壤硝态氮累积的影响

This indicates that the accumulation of soil organic matter influences evidently the water holding capacity .

说明，有机质的积累对土壤持水性能改善有重要作用。

Effects of ploughing rape straw into soil on nitrogen supply and accumulation in soil

油菜秸还田对土壤氮素供应和积累的影响

Accumulation of Soil Organic Matter and Influential Factors on the North Slope of Changbai Mountain

长白山北坡森林土壤有机质的累积过程及其影响因子

Effect of Vegetable Intercropping on the Nitrate Accumulation in Soil Profiles and Vegetables

蔬菜间作对土壤和蔬菜硝酸盐累积的影响

Effects of Biogas Fertilizers Application on Nitrate and Salt Accumulation in Soil of Protected Fields

施用沼气肥对保护地土壤硝酸盐及盐分累积的影响

Characteristics of Nitrate Distribution and Accumulation in Soil Profiles Under Main Agro-land Use Types in Beijing

北京市农田土壤硝态氮的分布与累积特征

Effects of nitrate accumulation of soil on growth and manganese concentration of pepper in Protected Cultivation

保护地栽培土壤硝酸盐积累对辣椒生长和锰含量的影响

Effects of Irrigation Methods on Water Use Efficiency of Winter Wheat and NO_3 ~ & N Accumulation in Soil

灌溉方式对冬小麦水分利用效率及土壤中硝态氮积累的影响

Effects of Water-Fertilizer Coupling on Accumulation of Soil Nitrate in Celery Harvest Period

不同水肥耦合对西芹收获期土壤硝酸盐累积的影响

Different rates of straw mulching enhanced the accumulation of soil organic matter , improve soil carbon fractions .

不同量秸秆覆盖还田强化了土壤有机质的积累，改善了土壤碳库组分。

Effects of farmland application of sewage sludge on crop yields and heavy metal accumulation in soil and crop

污泥农用对土壤和作物重金属累积及作物产量的影响

Study on formation and accumulation of soil nitrate influenced by fertilizer nitrogen with ￣( 15 ) N tracing technique

~（15）N示踪研究氮肥中N对土壤硝酸盐形成和积累的影响

Nitrate Accumulation in Soil Profile of Dryland Farmland

旱地农田土壤剖面硝态氮累积的原因初探

On the spatial distribution , the accumulation of soil salt in 0 ~ 20 cm soil was the most .

在土壤空间分布上，0～20cm土层盐分含量最高；

Effect of nitrogen application rate on nitrogen absorption , NO_3-N accumulation in soil and grain yield of winter wheat

施氮量对冬小麦氮素吸收利用、土壤中硝态氮积累和籽粒产量的影响

Effect of subsurface irrigation quota on salt accumulation of soil in plastic greenhouse cultivated with tomato

塑料大棚番茄栽培不同渗灌量对耕层土壤性质的影响

So excessive application of N fertilizer could lead NO-3-N accumulation in soil and secondary soil salinization .

因此，过量的氮肥投入可导致土壤NO3&N积累，为土壤次生盐渍化提供了物质基础。

The removal rates of Cd and Pb accumulation in soil reached 75.6 % and 72.5 % respectively .

土壤中Cd和Pb的累积去除率分别达75.6%，72.5%。

Organic matter circling increased accumulation of soil organic matter , supply of nutrients in soil and yield positively .

有机物还田促进了土壤有机质的积累，改善了养分的供应，从而提高了稻谷的产量。

The low temperature in the annular wetlands center benefits the accumulation of soil organic matter and stability of wetland system .

环型湿地中心的致冷效应有利于有机质的积累和保持环型湿地生态系统的稳定性。

Accumulation of soil inorganic nitrogen in mono - harvesting farmlands of northeast China in late autumn

东北一季作农田秋末土壤中无机氮的累积

Changes of salt accumulation in soil layers with different landforms in Manas River Valley in Xinjiang Region of China

新疆玛纳斯河流域不同地貌类型土壤盐分累积变化