For the best results, carrots should be grown in sandy soil that does not hold water for a long time.

VOA: special.2009.02.24

So, you must imagine these are successive kings who are being buried in this, what must have been, sacred soil.

因此,你必须设想他们是被埋葬在,这块圣土中的历任国王

耶鲁公开课 - 古希腊历史简介课程节选

In Mesopotamia they usually didn't need to because the richness of the soil and so on.

在美索不达米亚,由于土壤肥沃及其他因素,通常是不需要施肥的

耶鲁公开课 - 古希腊历史简介课程节选

The researchers say the nanodiamonds were all found in a level of soil thought to be about 13,000 years old.

VOA: special.2009.01.20

The way these things work, when you are engaged in agriculture, it's natural to go first to that soil, to that patch of land which is known to be likely to produce the best land, the most fertile, the best product, the most fertile land there is.

这一方式是这样运作的,当你从事农业,你自然而然的会首先关注土壤因素,去找出已知土地中最为肥沃的那一块,土地越肥沃,产量越高,就越追求更为肥沃的土地

耶鲁公开课 - 古希腊历史简介课程节选

The water is collected through two holes and in the holes there is a siphon to carry it to the soil.

VOA: special.2010.07.13

Plantings in the wetlands help hold down the soil against the forces of erosion, like wind and water.

VOA: special.2009.10.06

To test the liquid, he placed a drop in the soil of a dying flower growing in a pot in the room.

VOA: special.2009.09.26

This is because diseases that infect beans can stay in the soil and infect the next bean crop.

VOA: special.2009.03.24

He says there is likely more risk from lead dust on plants or from playing in the soil than from the plant itself.

VOA: special.2009.06.09

The glacier left huge amounts of soil and rocks in what scientists call the Valley Heads Moraine.

VOA: special.2009.01.05

He says that is because the farmer used rich soil to produce the sod, so it might not do well in clay soils.

VOA: special.2009.07.07

They called it the Free Soil Party, because they believed in free land for free settlers.

VOA: special.2009.03.12

In the past, it often has been hard to get complete information about current soil conditions.

VOA: special.2009.01.20

Corn harvests remain small. The researchers say farming methods in Sub-Saharan Africa need to improve or else poor quality soil will increase rural poverty.

VOA: special.2009.07.28

It also provides a good environment for earthworms and other helpful organisms in the soil.

VOA: special.2009.06.30

We will tell about a new way to recognize harmful minerals in rocks and soil.

VOA: special.2009.11.17

Cotton was a crop that grew well in the rich, dark soil near the river.

VOA: special.2010.03.28

Straw is especially popular in places where the clay content of the soil is high.

VOA: special.2009.01.12

Strawberries grown in containers need a soil depth of about twenty-five to thirty centimeters.

VOA: special.2009.05.19

They take nitrogen out of the air and put it in the soil.

VOA: special.2009.09.01

The organization will describe the soil in 42 nations in the sub-Saharan area.

VOA: special.2009.01.20

Institute director Nteranya Sanginga says soil management in sub-Saharan Africa must improve.

VOA: special.2009.01.20

These materials help keep the water in correct balance with the soil.

VOA: special.2009.01.12

The findings appeared in the Soil Science Society of America Journal.

VOA: special.2010.09.28

Some farmers grow them to replace lost nitrogen in the soil.

VOA: special.2010.02.02

As a result, mulched soil will be cooler in the summertime.

VOA: special.2009.06.30

Still,asbestos develop naturally in rocks and soil in some areas.

VOA: special.2009.11.17

It can survive in poor soil and without much water.

VOA: special.2010.06.08

Mulch suppresses weeds and holds moisture in the soil.

VOA: special.2010.06.15