Measurement
This unit of area equals 43,560 square feet and is standard for measuring farmland.
What is an ACRE?
This hand tool features two handles and curved blades used to prune small tree branches.
What are loppers (or hand pruners)?
This green pigment absorbs light energy during photosynthesis to produce plant sugars.
What is chlorophyll?
This dark, organic component of soil is formed by the decomposition of plant and animal matter.
What is humus?
This general term refers to a castrated male bovine animal.
What is a steer?
This traditional unit, equal to 4 inches, is used exclusively to measure the height of horses.
What is a hand?
This scientific tool is used to measure the salinity or sugar content (Brix) of a liquid sample.
What is a refractometer?
This structural plant tissue transports water and dissolved nutrients upward from the roots.
What is xylem?
This term describes the relative proportions of sand, silt, and clay particles in a soil profile.
What is soil texture?
This machine reaps, threshes, and cleans a cereal crop in one operation.
What is a combine harvester?
This unit measures the volume of grain crops like corn and wheat, roughly equal to 8 gallons.
What is a bushel?
This specialized veterinary tool is used to administer oral liquid medications or drench down a sheep's throat.
What is a drench gun?
This term describes the process where a seed breaks dormancy and begins to sprout.
What is germination?
These three primary macronutrients are represented by the three numbers found on standard fertilizer labels.
What are nitrogen, phosphorus, and potassium (N-P-K)?
This implement uses sharp steel disks to break up soil and chop crop residue.
What is a disk harrow?
This volume measurement for lumber equals a piece of wood 12" x 12" x 1".
What is a board foot?
This forestry tool is driven into a tree trunk to extract a core sample for counting growth rings.
What is an increment borer?
This primary plant hormone regulates cell elongation and controls apical dominance.
What is auxin?
This chemical measurement determines a soil's ability to hold and exchange positively charged nutrient ions.
What is Cation Exchange Capacity (CEC)?
This standard tractor attachment uses a hydraulic three-point hitch to lift, flip, and turn over the top layer of soil before planting.
What is a plow?
This historic surveying unit equals 16.5 feet and is frequently used to measure agricultural fence lines.
What is a rod (or pole)?
This specific type of square features a pivoting arm used to lay out roof pitches and angle cuts quickly.
What is a speed square (or rafter square)?
This management strategy rotates crops with specific plantings to disrupt pest lifecycles without chemicals.
What is cultural control (or crop rotation)?
This specific type of water remains tightly bound to soil particles by surface forces and cannot be absorbed by plant roots.
What is hygroscopic water?
This essential safety device on a tractor is a heavy metal bar or frame designed to protect the operator if the machine rolls over.
What is a ROPS?