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Give a scientific explanation for four of the following: (a) Autumn ploughing as practised in the cultivations for crops - Leaving Cert Agricultural Science - Question 9 - 2006
Question 9
Give a scientific explanation for four of the following: (a) Autumn ploughing as practised in the cultivations for crops. (b) Conservation of hedgerows. (c) The c... show full transcript
Worked Solution & Example Answer:Give a scientific explanation for four of the following: (a) Autumn ploughing as practised in the cultivations for crops - Leaving Cert Agricultural Science - Question 9 - 2006
Step 1
Autumn ploughing as practised in the cultivations for crops.
Answer
Autumn ploughing is essential for preparing the soil for cultivation. It helps to break down clumps of soil, thanks to weathering processes during winter, allowing for good seed beds. Additionally, it promotes better germination in spring and aids in pest control, as it exposes pests to colder temperatures.
Step 2
Conservation of hedgerows.
Answer
Hedgerows provide vital habitats for wildlife, acting as corridors for various species. They help protect crops from winds and serve as shelter for farm animals. Furthermore, they enhance biodiversity and contribute to soil conservation by preventing erosion.
Step 3
The culling of breeding stock.
Answer
Culling involves reducing the number of breeding individuals to control certain traits within the population. This practice helps manage health problems, reduces litter size, and enhances the overall genetic quality of the stock, thereby improving yield.
Step 4
The function of a gizzard in poultry.
Answer
The gizzard plays a crucial role in the digestion process in poultry. Since birds lack teeth, the gizzard functions as a grinding organ, breaking down food into smaller particles. This is essential for the effective absorption of nutrients from feed.