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(a) List and explain four factors a farmer should take into consideration when deciding how much fertiliser to apply to a crop - Leaving Cert Agricultural Science - Question 6 - 2015
Question 6
(a) List and explain four factors a farmer should take into consideration when deciding how much fertiliser to apply to a crop. (b) Other than fertilisers, list and... show full transcript
Worked Solution & Example Answer:(a) List and explain four factors a farmer should take into consideration when deciding how much fertiliser to apply to a crop - Leaving Cert Agricultural Science - Question 6 - 2015
Step 1
List and explain four factors a farmer should take into consideration when deciding how much fertiliser to apply to a crop.
Answer
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Soil Type: The type of soil, such as sandy or clay, significantly affects nutrient retention and availability. For example, sandy soils drain quickly and may require more fertiliser than clay soils, which retain nutrients better.
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Previous Crop: The crop grown previously can affect soil fertility. Some crops deplete specific nutrients, so a farmer might opt for different fertiliser levels based on the history of the soil's nutrient profile.
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Soil Test Results: Conducting a soil test provides data on existing nutrient levels and pH balance, guiding farmers in applying the correct amount of fertiliser needed to enhance crop growth effectively.
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Time of Year: The season impacts soil conditions and the growth cycle of crops. Early spring might require different fertilisation strategies compared to late summer, as nutrient uptake varies with plant growth stages.
Step 2
Other than fertilisers, list and explain four additional factors that would influence the yield of a crop at harvest.
Answer
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Variety of Seed: Different seed varieties have unique growth requirements and yield potentials. Selecting a high-yield variety suited to the local climate can significantly enhance crop productivity.
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Climate: Weather conditions, including temperature variations and rainfall patterns, profoundly influence crop health and yield. Extreme conditions, whether too hot or too cold, can stress plants and reduce yield.
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Pest and Disease Management: Effective management of pests and diseases is crucial for maximizing yield. Infestations can decimate crop populations, so employing preventive measures and treatments is essential for maintaining health and productivity.
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Sunshine Levels: Adequate sunlight is vital for photosynthesis, the process through which plants convert light energy into chemical energy. Insufficient sunlight can stunt growth and lead to lower yields.