1.   Concrete, gypsum wallboard and paint waste alter soil acidity.

2.   He can correlate performance with other variables, such as soil acidity.

3.   I can imagine a gardening appliance, a little probe that you can stick in the ground so it can measure moisture and soil acidity and other things.

4.   Moreover, different species specialize in particular niches that make the best use of different resources and of changes in, say, soil acidity and temperature.

5.   Soil acidity can alter flower color.

6.   The runoff is not as damaging to plants as sodium chloride, and the calcium may help bring down soil acidity.

7.   You can then maintain the soil acidity with regular applications of leftover coffee grounds and tea leaves.

8.   And he said Chinese crop yields were threatened because of the high soil acidity caused by the heavy reliance on coal.

9.   There are garden centres, Government agencies and specialised nurseries that offer a range of home tests for nutrients as well as for determining soil acidity.