soils

Some soils are actually too alkaline for certain plant life .

有些土壤其实碱性过强，不利于某些植物生长。

Incorporating organic material into chalky soils will reduce the alkalinity .

在白垩质土壤中添加有机物可降低其碱性。

It was the first time I had set foot on American soil .

那是我第一次踏足美洲大地。

It was the first time I had set foot on African soil .

那是我第一次踏上非洲大地。

Add plenty of organic matter to improve the soil .

施用大量的有机肥料以改良土壤。

They built a wall to avoid soil being washed away .

他们建了一堵墙防止土壤流失。

The body was hidden beneath a thin layer of soil .

尸体被埋藏在薄薄的一层土下面。

Improve the soil by adding organic matter .

加入有机物以改良土壤。

Water the plant regularly , never letting the soil dry out .

经常给植物浇水，别让土壤干透了。

Make sure that you bed the roots firmly in the soil .

一定要使根部牢牢地扎在土壤里。

Water the plants regularly to keep the soil moist .

定时浇灌植物以保持土壤湿润。

Firm the soil around the plant .

把植物周围的土弄紧实。

Press the soil flat with the back of a spade .

用铁锹背面把土拍平。

Plants draw minerals and other nutrients from the soil .

植物从土壤中吸取矿物质和其他养分。

Can plants obtain adequate nourishment from such poor soil ?

土壤这样贫瘠，植物能获得足够的养分吗？

During the winter the seeds lie dormant in the soil .

冬天种子在土壤中休眠。

Only a small amount of the rainwater actually infiltrates into the soil .

实际上只有少量雨水渗进了土壤。

First rake the soil smooth .

首先把地耙平。

Soil erosion was mitigated by the planting of trees .

植树造林减轻了土壤侵蚀。

Earthworms do the important job of aerating the soil .

蚯蚓做了使土壤透气的重要工作。

Plant the seedlings in damp soil .

把幼苗种在湿润的土壤里。

Clear the soil of weeds and fork in plenty of compost .

清除土中的杂草，然后叉入大量堆肥。

Turn the soil over with a spade .

用锹把地翻一遍。

Well-drained soil suits the plant best .

排水性好的土壤最适合于这种植物。

Loam is a soil with roughly equal proportions of clay , sand and silt .

壤土是由大约等份的黏土、沙和粉砂合成的。

Nitrates leach from the soil into rivers .

硝酸盐由土壤渗入江河。

Earthworms burrow deep into the soil .

蚯蚓钻土很深。

Young people don 't want to do things that soil their hands

年轻人不愿做那些容易弄脏手的事情。

Weeds are an index to the character of the soil .

杂草是反映土壤特征的一个指标。

It is important to enrich the soil prior to planting .

在种植前给土壤增肥很重要。