Question

HelP pLEASE =)
A student observes poor growth of plants in a garden containing high clay content. Clay content reduces drainage in soil. Which of these is the best method to improve plant growth in the garden?
Answer

water the plants once a month

mix soil with chemicals which absorb the air

do not dig or till the soil

add sand to the soil

Answer 1

When plants (trees & shrubs) are cleared from a site, soil is exposed to sunlight and the eroding effects of wind and water. Soil aeration is increased and the rate of weathering increases.

Apart from erosion, the proportion of organic matter in the soil gradually decreases, through the action of microbes in the soil which use it as a source of energy ‑ unless the new land use provides some replacement.

Answer 2

TYPES OF SOIL DEGRADATION

A number of major soil related problems occur in Australia these include:

-Loss of soil fertility (see lesson on nutrition)
-Erosion
-Salinity
-Soil compaction
-Soil acidification
-Build up of dangerous chemicals

Answer 3

Add sand. that will increase drainage, as sand is pourous.

Answer 4

tAHNK YOU =)

Answer 5

Now worries =]