Soil science practical task 4: Results of the analysis

Results of analysis:

The mixture of compost and soil (50/50) was the first to produce and sprouts and soon after was the 100% compost was second to show any sign of sprouts.

Weeds and grass first showed their presence on 7 August 2012 in all the control, T1, T3, T4 pots and since then have grown at an alarming.

Date photo taken: 2012/08/21

Strange moss has grown in the T4 pot.

Date photo taken: 2012/08/21

The overall average growth of the plants has increased significantly in the intervals of a week of recordings.

On the 21 August 2012 there was presence of insects and white blotches on the leaves. We also found small black dots beneath the leaves.

Date photo taken: 2012/08/21

The pH recording of the 100% soil, 50/50 mixture, 100% compost and tea extract were very similar. In the graph is the recorded pH readings and the temperature of the substances.

The EC reading and temperature readings are shown in the graph. The graph shows the constant temperature and also the extreme differences between all the substances, where the extract has the highest EC which is measured in uS and the sand which has the lowest.