WorksheetsHorticulture Today - Unit 12
Total questions: 38
Worksheet time: 25mins
Which of the following is a macronutrient?
manganese
molybdenum
nich=kel
potassium
Which of the following is NOT a micronutrient?
boron
calcium
chlorine
copper
Which macronutrient is responsible for the plant's ability to form green chlorophyll molecules?
nitrogen
potassium
phosphorous
sulfur
Which macronutrient plays a crucial role in photosynthesis and respiration?
nitrogen
potassium
phosphorous
sulfur
Which micronutrient is a component of cell walls and is involved in DNA and RNA synthesis?
boron
chlorine
iron
manganese
Which micronutrient becomes unavailable at high pH levels?
boron
chlorine
iron
manganese
Which of the following is the process of soil-dwelling bacteria oxidizing ammonium ions?
ammonification
assimilation
denitrification
nitrification
Cover crops that are planted in fields to improve soil structure, minimize erosion, and add nutrients are an example of which organic material?
animal wastes
green manures
industrial and municipal wastes
plant residues
Which of the following is a method of fertilizer application in which water-soluble fertilizers are distributed through irrigation?
banding
broadcasting
fertigation
side-dressing
Fertilizers that contain nitrogen, potassium, and phosphorous are known as ____________.
complete fertilizers
fertilizer grades
slow-release fertilizers
superphosphates
Banding is a fertilizer application method that applies fertilizers between rows of young plants.
true
false
Fertilizers that release nutrients over an extended period of time are called slow-release fertilizers.
true
false
The ratio of a fertilizer is the proportion of nitrogen to potash to phosphate.
true
false
Chlorine's role in plants is not fully understood.
true
false
Copper is a macronutrient.
true
false
The process in which nitrogen gas reacts with hydrogen gas to form ammonia is called ammonification.
true
false
Plant tissue analysis offers a method for testing nutrient levels in a plant.
true
false
Nutrient ions have only positive charges.
true
false
Fertilizer calculations consider the recommended rate of application per given square acreage.
true
false
Most inorganic nutrients are absorbed through the roots as ions in the soil solution.
true
false
The process of nitrogen mineralization, and the first stage of the nitrogen cycle, is called __________.
ammonification
assimilation
residues
composting
The formation of organic nitrogen compounds from inorganic nitrogen compounds present in the environment is called ____________.
ammonification
assimilation
residues
composting
The stalks, leaves, vines, and other parts left behind in a field and used as organic material to add nutrients to soil are called plant _________.
composting
residues
assimilation
tilth
Using naturally occurring microorganisms to break down organic materials into useful soil amendments is called ____________.
composting
residues
tilth
grade
The term used to describe soil quality for plant growth is soil _________.
tilth
inorganic
grade
injection
Fertilizers that are developed from materials other than plants and animals are termed _______________ fertilizers.
tilth
inorganic
injection
banding
The guaranteed analysis of a fertilizer is known as the fertilizer _____________.
injection
tilth
banding
grade
Placing anhydrous ammonia in a liquid form into the soil near the plant roots is called soil ____________.
injection
banding
potassium
grade
Spreading fertilizer in bands of lines where developing roots will easily reach the fertilizer is called _____________.
tilth
banding
ammonification
composting
Salt mines that extract crude or relatively pure salts are a source of the macronutrient _____________.
potassium
phosphorous
iron
nitrogen
Catalyzer and component of plant enzymes; electron carrier in photosynthesis; necessary for chlorophyll and lignin synthesis.
boron
chlorine
copper
iron
Plays a role in tryptophan synthesis, photosynthesis, and crop stress protection; important for fruit, seed, and root system development.
nickel
oxygen
zinc
molybdenum
Involved in phosphorous metabolism and nitrogen fixing.
copper
iron
manganese
molybdenum
Normal plant growth and development; component of cytochromes.
boron
chlorine
copper
iron
Component of cell walls; involved in DNA and RNA synthesis.
boron
chlorine
copper
iron
Function not fully understood; supports root development.
boron
chlorine
copper
iron
Activates enzymatic processes and is part of some enzymes.
manganese
nickel
iron
zinc
Contained in the enzyme urease in legumes; necessary to convert urea to ammonia.
copper
boron
nickel
iron
