查询词典 humus

They may need addition of humus or mulches to improve water and mineral retention and prevent leaching.

要提高此种土壤的保水保矿物分子能力并防止矿物被滤去需要加入腐殖质或地面覆盖物。

Wind and spring floods erode soils , exposing underlying layers and premiering new compositions of humus and minerals on the surface .

风和开春季洪水侵蚀着土壤，暴露出地下土层，新组成的腐殖质和矿物成分初露地表。

Wind and spring floods erode soils , exposing underlying layers and premiering new compositions of humus and minerals on the surface .

风沙和水灾侵蚀着土壤，暴露出地下土层，腐殖质新成分及其表面的矿物。

Wind and spring floods erode soils , exposing underlying layers and premiering new compositions of humus and minerals on the surface .

风和开春暴涨的溪水侵蚀着土壤，暴露出地下土层，腐殖质和矿物成分初露地表。

Black clay soil ; humus ; black humic acid ; optical density index

黑粘土；腐殖质；黑色胡敏酸；光密度指数

Blood lily is planted just below the ground in well-drained, humus-rich soil and prefers to be left undisturbed for many years.

血百合种植下方是在良好的排水，腐殖质丰富的土壤和喜欢理由以左原状多年。

Shake hands and hold pots, make humus tight, and then narcissus bulb plate located in the basin, and then continue to the soil about 1 cm, then Jiaotou water, and then pot in the shade , 5 days until bulb set to grow roots, it will flower pot into a sunny office culture ...

双手抱盆摇动，使腐殖土紧实，然后将水仙鳞茎盘座落在盆中，再继续加土约1厘米左右，接着浇透水，然后将花盆放在阴凉处，5天后待鳞茎盘长出根后，将花盆放到有阳光处养殖。。。。

Based on surveying data of sample plots of Phyllostachys pubescens Mazel in Xian＇an district of Xianning City,the effects of aspect,gradient,slope,humus thickness,crown density and stock density on the increment of Phyllostachys pubescens Mazel.were analyzed.

以咸宁市咸安地区40块毛竹标准地的调查资料为基础，分析了坡向、坡度、坡位、腐质层厚度、郁闭度和立株度对毛竹胸径生长量的影响。

Factors effecting the degradation rate, including types of light sources, photooxidation catalyzers and sensitizers, the pH value of water and the component of humus were investigated in the experiment, and the treatment of wastewater containing triazophos using UV-Fenton was also studied in this paper.

为此本文进行了三唑磷在水体中光降解的实验研究，考察了光源、光催化剂及光敏剂、水体pH值、腐殖质成分等因素对三唑磷光降解的影响，并对UV-Fenton处理三唑磷废水进行了研究。

The canopy humus provides essential substrates and nutrients for the growth of abundant epiphytes.

为丰富的附生植物提供了重要的生长基质和营养物质。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。