Intensive Farming Flashcards
Give 2 examples of intensive farming methods
1) Glasshouses
2) Polythene tunnels
what can be controlled in glasshouses
Temperature
Lighting
Carbon Dioxide levels
what happens with a high photosynthesis rate in greenhouses
Crops grow faster
the total yield is bigger
give one advantage polythene tunnels have over greenhouses
polythene tunnels are cheaper to construct
what are nitrates in plants needed for
plants need nitrates for the production of proteins
whats an effect of Nitrate deficiency
leads to stunted growth in plants
why do plants need phosphate
to make DNA and cell membrane in plants
whats an effect of phosphate deficiency
affects the growth of roots
why do plants need Potassium
Potassium is needed to make the enzymes needed for respiration and photosynthesis
what’s an effect of potassium deficiency
an effect is that it causes yellowing of the leaves
what are the 3 minerals needed
1) Potassium
2) Phosphate
3) Nitrogen
