Plant Nutrients
Nourishing substances
What are nutrients?
An organized way for scientists to gather and pursue scientific knowledge
What is the scientific method?
Most organic material is found within this horizon, the top 2-6 inches of soil.
What is topsoil?
the study of the matter and movement of God's physical creation
What is science?
The movement of nitrogen from the air to the soil to be used by plants and then returned to the atmosphere again
What is the nitrogen cycle?
Three most important mineral nutrients for plants
What are nitrogen, potassium, and phosphorous?
scientists who study soil
Anything that occupies space or has substance; the substance of the material world
What is matter?
In soil, nitrogen is converted into this basic compound of nitrogen and hydrogen
What is ammonia?
Plants with short stems, few leaves, and a pale green color are lacking this nutrient.
What is nitrogen?
The groups on which the tests are performed while testing the hypothesis
What are the experimental groups?
contains a range of sand, silt, clay, and humus
What is loam?
Substances composed of only one type of atom
What are elements?
The bacteria that convert atmospheric nitrogen into compounds plants can use live on these small bumps on the roots of plants
What are nodules?
A fertilizer bag labeled 10-8-14 would contain 8% of this element.
What is phosphorous?
These are conditions only present in experimental groups
What are variables?
This soil component encourages drainage and allows roots to get the optimum air space
What is sand?
Substances containing two or more elements bonded together
What are compounds?
The bacteria that convert nitrates back into atmospheric nitrogen to be released from the soil back to the atmosphere
What are denitrifying bacteria?
Primary plant food element found in ashes of burned fruit, vegetables, and grain
What is potassium?
The number of variables per experiment that should be used when testing a hypothesis.
What is one?
This soil material is derived from nonliving matter.
A theory that has never been proven false
What is a law?
These organisms convert ammonia produced by decomposing plants and animals into nitrates