Explore key factors that influence plant growth in agricultural settings with these easy questions covering light, water, nutrients, and more.
Which factor is essential for photosynthesis and helps plants produce their own food in a field of wheat?
Explanation: Sunlight provides the energy plants need for photosynthesis, enabling them to produce food. Fertilizers supply nutrients but do not provide energy. Wind affects pollination in some cases but is not essential for food production. Pesticides protect plants from pests but do not aid in food production directly.
A farmer notices wilting lettuce leaves during a dry spell. Which factor should be adjusted to help the plants recover?
Explanation: Water is vital for plant cells to maintain turgor pressure and carry out essential biochemical processes. Shade cloth can reduce heat but does not replace the need for water. Soil pH is important for nutrient uptake but not the primary cause of wilting. Seed spacing affects competition but will not solve wilting immediately.
Tomato plants in a garden show yellowing leaves and poor growth. Which is most likely lacking?
Explanation: Nutrient deficiencies often cause yellowing leaves and stunted growth in plants. Pruning shapes plants but does not address deficiencies. Humidity supports some growth aspects but does not directly resolve nutrient shortages. Planting depth impacts seedling emergence, not ongoing nutrition.
Corn plants in a hot region are not producing well. Which environmental factor is most likely affecting yield?
Explanation: Extreme temperatures can stress corn plants and reduce yield. Noise does not impact plant growth. Pollinators are important for some crops but corn is mainly wind-pollinated. Mulch color affects soil temperatures but is less direct than ambient seasonal temperature.
Why is proper spacing between cabbage plants important in a vegetable farm?
Explanation: Proper spacing ensures each plant gets enough light, water, and nutrients. Attracting insects is unrelated and may increase pests. Increasing soil acidity is not the goal of spacing. Spacing does not intentionally keep leaves small; overcrowding can actually cause smaller leaves.