Fertilizers
What are fertilizers used for in agriculture?
They supply essential nutrients to plants to promote growth and increase crop yields.
What is the difference between macronutrients and micronutrients?
Macronutrients are needed in larger amounts, while micronutrients are required in smaller amounts.
What does the periodic table organize?
Elements based on their atomic number and properties.
What is one function of calcium in plants?
It aids in cell wall formation and structure.
What can excess nitrogen from fertilizers lead to in groundwater?
Contamination and pollution.
What are the three key macronutrients in fertilizers commonly referred to as NPK?
Nitrogen (N), Phosphorus (P), and Potassium (K).
Which nutrient is primarily responsible for leaf and stem development?
Nitrogen.
Which group in the periodic table contains nitrogen?
Group 15 (Nitrogen Group).
What deficiency symptom is associated with magnesium?
Chlorotic leaves with brilliant colors.
Why is careful management of fertilizers important?
To minimize environmental harm and prevent overuse.
Name one common source of organic fertilizers.
Compost or manure.
What are two deficiency symptoms of phosphorus in plants?
Leaf die-back and purplish coloration on older leaves.
How does understanding the periodic table help with fertilizers?
It helps in knowing the properties of elements that are essential for creating effective fertilizers.
What is a role of sulfur in plant growth?
It promotes growth and is necessary for protein synthesis.
What is one potential effect of fertilizer runoff into water bodies?
Eutrophication, which can harm aquatic life.
What is the effect of overusing fertilizers on soil health?
It can lead to soil acidification and nutrient depletion.
Which micronutrient is essential for chlorophyll formation?
Iron
Which nutrient is found in Group 1 of the periodic table?
Potassium.
What does zinc deficiency cause in plants?
Stunted growth and chlorotic interveinal tissue.
What is a slow-release fertilizer?
A fertilizer that releases nutrients gradually to avoid nutrient leaching.
What is a sustainable practice for fertilizer use?
Using the right amount of fertilizers and practicing crop rotation.
What is the role of potassium in plant health?
It helps regulate water balance and strengthens plant cell walls.
Name a common form of nitrogen found in fertilizers and their formulas.
Urea (46-0-0) & UAN 32-0-0
How does nitrogen act as a catalyst for other nutrients?
It helps promote the uptake and utilization of other nutrients in plants.
Name one practice to reduce the environmental impact of fertilizer use.
Using organic alternatives or implementing crop rotation.