A robot would then pick up rocks and soil, and send them back to earth for testing.

VOA: special.2010.05.25

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

VOA: special.2009.11.17

They collected more than thirty kilograms of rock and soil to take back to Earth.

VOA: special.2009.07.15

A piece of sod has grass on the top and soil on the bottom.

VOA: special.2009.07.07

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

VOA: special.2009.11.17

Engineers have found that wetlands, grassy fields and soil or sand filters can take in stormwater with different levels of pollution and release water with a relatively constant cleanliness.

VOA: standard.2010.08.04

They conducted several experiments, gathering up lunar rocks and soil.

VOA: standard.2009.07.16

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 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

He says the substances are especially dangerous because they travel through the air and stay in the atmosphere, soil and water.

VOA: special.2009.06.23

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

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

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

VOA: special.2009.03.24

After the potato plants appear, organic mulch can be spread around to hold moisture, help suppress weed growth and cool the soil.

VOA: special.2009.03.10

They also will study chemical and physical properties of the soil samples with a method called infrared spectroscopy.

VOA: special.2009.01.20

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

VOA: special.2010.10.13

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

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

VOA: special.2009.10.06

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

VOA: special.2011.03.29

The extension service says the best formation happens when the soil is between fifteen and twenty-one degrees Celsius.

VOA: special.2009.03.10

He said the soil improvements are needed "if we are to reduce poverty and feed growing populations."

VOA: special.2009.01.20

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

VOA: special.2009.01.05

Soil should also be tested for its pH level, a measure of the acid and alkaline balance.

VOA: special.2009.06.09