The students use the mixture to fertilize the soil instead of buying chemical fertilizers that could harm the environment.

VOA: special.2009.04.14

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

Every piece of that soil is necessary.

每一片特定土地的土壤都是必要的

耶鲁公开课 - 古希腊历史简介课程节选

For example,she noted that crops designed to resist damage by glyphosate need fewer pesticides that are more toxic to the soil.

VOA: special.2010.04.27

Soil was being eroded and wasted along the Eastern seaboard, and they were using up the great soils of the Mississippi Valley and over time that slave system just somehow wasn't going to work out.

东部沿海地区的土地因被侵蚀而荒废掉,密西西比河谷地区的土地资源即将被耗尽,但就在这种情况下,奴隶制依然能维持南方的经济

耶鲁公开课 - 美国内战与重建课程节选

And Amber Banks says they want the same people who get food donations to learn how to work the soil.

VOA: special.2010.07.06

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

But a newly announced project to develop soil maps and make them available on the Internet promises help for the situation.

VOA: special.2009.01.20

Fabian Fernandez, a soil and plant nutrition expert at the University of Illinois, says no-till means less intensive labor.

VOA: special.2010.09.28

If possible, in the year before you plant potatoes, plant a cover crop to improve the soil and the potato production.

VOA: special.2009.03.10

To improve clay soils, mix in garden waste or other organic matter and turn the soil deeply in the fall.

VOA: special.2009.03.10

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

The first lady showed the young gardeners how to turn the soil for the one hundred square meter garden.

VOA: special.2009.03.31

Think about growing cabbage if you live where the weather is cool and the soil is moist and fertile.

VOA: special.2009.03.03

Experts say warm days, cool nights and a medium soil temperature are the best conditions for growing carrots that taste great.

VOA: special.2009.02.24

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 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

Farmers lack enough inputs to maintain soil fertility is parts of many developing countries, especially in Africa south of the Sahara.

VOA: special.2009.07.28

David Robson from the University of Illinois Extension says the best results come from moist, richly organic black soil.

VOA: special.2009.07.07

He says a dense, competitive crop that quickly shades the soil from the sun will help reduce weed growth.

VOA: special.2011.07.26

If your soil is very dry, you can add peat or compost, which returns nutrients to the soil.

VOA: special.2010.06.15

So keep the garden watered. Moist soil absorbs more heat than loose,dry soil covered with mulch or vegetation.

VOA: special.2010.01.12

The volunteers placed the plants about five centimeters into the soil to prevent rising and falling water levels from pulling them out.

VOA: special.2009.10.06

"Terroir" is the word used to describe how a vineyard's soil and climate give a wine special qualities.

VOA: special.2010.10.13

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

VOA: special.2009.10.06

Intensively used grasslands are also harmed as the soil is continually crushed under the weight of heavy animals.

VOA: special.2010.01.19

Radioactive particles travel in the wind and get absorbed into soil with the help of rain and snow.

VOA: special.2011.03.29

This will help dry the soil. In normal conditions, placing mulch around rose plants is a good idea.

VOA: special.2010.06.15

The system is designed to identify the presence of contaminants like soil or animal waste on fresh produce.

VOA: special.2011.06.07

MICHELLE OBAMA: "Hi Everyone! We are here digging up soil, because we are about to plant a garden."

VOA: special.2009.11.27