Flashcards on Fundamentals of Crop Production and Yield
Fundamentals of Crop Production and Yield: A Student's Guide
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Crop production / Agriculture
8 cards
Card 1
Question: Why do people grow crops commercially?
Answer: To provide food for people and animals, and other products (energy, flowers, materials); growers aim to make a profit by producing beyond family needs
Card 2
Question: List the basic requirements plants need to grow successfully mentioned here.
Answer: Water and mineral ions from the soil, carbon dioxide and light (and water) for photosynthesis, and a temperature warm enough for enzyme activity.
Card 3
Question: How can growers increase the yield of their crops?
Answer: By manipulating factors plants need (water, minerals, CO2, light, temperature) and reducing losses from pests, weeds and disease.
Card 4
Question: What role do polytunnels play in crop production?
Answer: Polythene tunnels provide a protected environment that alters conditions (temperature, humidity, protection) so crops can grow in extreme climates.
Card 5
Question: Give two examples of extreme conditions where polytunnels are used in the images described.
Answer: Hot, dry (almost desert-like) conditions in Almeria, Spain; and snowy winter conditions on a small organic farm in Eastern England.
Card 6
Question: What kinds of crops can be grown inside polytunnels as described?
Answer: Salad crops (including winter salad crops) are mentioned as being grown inside polytunnels.
Card 7
Question: Besides manipulating growth conditions, what is another way to improve crop yields at harvest time?
Answer: Reduce losses of the crop caused by pests, weeds and disease.
Card 8
Question: Why has there been a long-term need to increase crop yields?
Answer: Human populations have increased, creating a need for more food to feed people.