Question

2. The table below shows data obtained from an experiment designed to measure nitrogen removal by weeds (kg/ha) under different herbicides at three different intervals (days after sowing):

Herbicide Removal of nitrogen by weeds (kg/ha)

25 DAS 55 DAS At harvest

Oxadiazon 2.4 1.3 1.8

Fluchloralin 6.1 2.5 4.4

Isoprofuron 10.2 3.0 7.8

Unweeded control 27.2 51.9 63.0

Use an appropriate graph to illustrate the data on nitrogen removal.

3. The simple bar diagram and the pie chart may be used to illustrate similar types of data. With the aid of two examples, demonstrate the preference of one over the other.

Answer 1

2. The appropriate chart is shown below.

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