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Calcium ammonium nitrate (CAN) is the most widely used fertiliser on Irish farms - Leaving Cert Agricultural Science - Question d - 2014
Question d
Calcium ammonium nitrate (CAN) is the most widely used fertiliser on Irish farms. (i) What is the main plant nutrient found in CAN? (ii) Describe an experiment to ... show full transcript
Worked Solution & Example Answer:Calcium ammonium nitrate (CAN) is the most widely used fertiliser on Irish farms - Leaving Cert Agricultural Science - Question d - 2014
Step 1
What is the main plant nutrient found in CAN?
Answer
The main plant nutrient found in Calcium ammonium nitrate (CAN) is nitrogen. Nitrogen is essential for plant growth as it plays a crucial role in the synthesis of amino acids, proteins, and chlorophyll, which are vital for the plant's growth and photosynthesis.
Step 2
Describe an experiment to show the effect of CAN on grass growth.
Answer
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Select one or two plots: Choose an area with uniform soil and light conditions, ideally at least 1 square meter in size.
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Fencing: Fence off the selected plots to prevent animals from grazing on the grass.
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Prepare the plots: Cut the grass in both plots to a uniform height to start the experiment.
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Apply CAN: Apply Calcium ammonium nitrate to one of the plots, following the recommended application rate. Leave the other plot untreated as a control.
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Define a suitable time period: Choose a time frame for the experiment, such as four weeks, to monitor changes in grass growth.
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Measure grass growth: Regularly measure the height of the grass in both plots at consistent intervals.
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Cut and weigh the grass: At the end of the experiment, cut the grass from both plots and weigh to compare the growth.
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Conclusion: Analyze the data collected to evaluate the effect of CAN on grass growth by comparing the weight and height of grass in the treated plot against the control.