Establishment (Leaving Cert Agricultural Science): Flashcards
📚Flashcards
Practise the cards
10 cards from this deck
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Practise the cards
10 cards from this deck
3 main nutrients for soil fertility (NPK)
3 main nutrients for soil fertility (NPK)
Nitrogen (N), Phosphorus (P), Potassium (K)
Ideal pH range for most crops
Ideal pH range for most crops
6-7
Purpose of ploughing in seedbed prep
Purpose of ploughing in seedbed prep
Buries weeds & crop residues, loosens compacted soil
Function of harrowing
Function of harrowing
Breaks up large soil clods, creates level surface
Purpose of rolling the seedbed
Purpose of rolling the seedbed
Firms soil surface, improves seed-to-soil contact
Germination rate for high-quality seeds
Germination rate for high-quality seeds
Above 85%
Risk if seeds sown too shallow
Risk if seeds sown too shallow
May dry out or be eaten by birds
Risk if seeds sown too deep
Risk if seeds sown too deep
Lack energy to reach surface, weak emergence
Why loam soils are ideal
Why loam soils are ideal
Balance drainage, nutrient retention & physical properties
Effect of poor soil drainage
Effect of poor soil drainage
Root rot & anaerobic conditions