-
Sand (good quality sharp) is added to soil to
increase aeration
-
A plant that minimizes transpiration will have leaves that are ___________in size
and ___________oriented.
small, vertically
-
When organic matter is added to soil, its N is converted by the process of mineralization to which N
form?
ammonium
-
is a magnesium (Mg) fertilizer.
Epsom salt
-
to saline, sodic, or saline-sodic soils promotes good soil structure, drainage, and Na leaching.
gypsum
-
___________________ is the amount of water the soil can hold against the force of gravity.
field capacity
-
Coir is an organic growing medium amendment and is a product of the ________________
industry.
coconut
-
___________________is a blue-green algae that can fix N and may form a symbiotic relationship with
Azolla or Cycad.
Anabaena
-
___________________ water occurs in large soil pores immediately following a rain, it drains from
the soil within 24 hrs.
gravitational
-
_________________________ is the process that converts nitrogen gas to ammonium.
nitrogen fixation
-
_____________ is the outer weathered layer of the earth's crust.
soil
-
If one wanted to make a garden soil flocculate, and therefore have better
structure, ________________should be added.
Ca
-
Clay
is composed of _______________, which are flat, sheet-like plates laminated into stacks.
micelles
-
All limes are also _____ fertilizers.
Ca
-
Acid
soils occur primarily in areas of ________________________.
high precipitation
-
A ___________ soil contains 20-65% organic matter.
muck
-
_____________ irrigation is an outdoor surface irrigation system used for row crops.
furrow
-
Nitrogen (N) is used by the plant as a component of ______________ and_________________.
chlorophyll and nucleic acids
-
Bagasse is an organic growing medium amendment and is a product of the ________________
industry.
sugarcane
-
_____________is a chemical bond that occurs between water molecules and partially explains why
a column of water can be pulled up the xylem of stems during translocation.
H-bond
-
____________________________ is when a plant wilts, but can recover when placed in a saturated atmosphere.
incipient wilting
-
_____________ irrigation is an outdoor surface irrigation system used for row crops.
furrow
-
Immobile nutrients move up the plant by _____________ (in the xylem) transport.
acropetal
-
Interveinal chlorosis and bronze coloration on older leaves is a symptom of _______
deficiency.
Mg
-
_______ mineral particles contribute
most to a soil's water holding capacity.
clay
-
Most of the water a plant looses occurs through the _______________.
stomata
-
If one wanted to make a garden soil flocculate, and therefore have better
structure, ________________should be added.
Ca
-
___________________ water occurs in large soil pores immediately following a rain, it drains from
the soil within 24 hrs.
gravitational
-
Field soil is not used for growing plants in containers because it
___________________ and __________________________.
packs too much and is heavy
-
Clay is composed of _______________, which are flat, sheet-like plates laminated
into stacks.
micelles
-
___________________ is the amount of water the soil
can hold against the force of gravity.
field capacity
-
Sand (good quality sharp) is added to soil to ____________________________.
increase aeration
-
_________________________ is the process that converts nitrogen gas to ammonium.
nitrogen fixation
-
When water is used in biochemical reactions such as photosynthesis it functions as a
_________________
reagent
-
Mineral particles decrease in size in the following order ______________________.
sand>silt>clay
-
____________________________ is when a plant wilts, and cannot recover when placed in a saturated
atmosphere.
permanent wilting
-
______________________ is an organic growing medium amendment.
coir
-
The ideal pH for field soil is ______.
6.5
-
An example of a plant that through a symbiotic relationship fixes atmospheric
nitrogen is _______________.
soybean
-
The number of essential elements that are required by plants for normal growth, development and
completion of its life cycle is ______.
17
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