CSES 2040 exam 3 UPDATED ACTUAL Questions and CORRECT Answers
Approximately how long did the The Age 50 years
of Guano last?
What was the Guano Islands Act? unoccupied island (chili, etc.) that had bird poop it belonged to the US
Fritz Haber developed (invented) which -haber-bosch process
process? -industrialized the atmospheric fixation of nitrogen
Haber Bosch process ________ the ______ of industrialized fixation
Nitrogen
-guaranteed analysis tells you the minimum
What is a guaranteed analysis? What two
percent nutrients in the fertilizer
things are included in a Guaranteed
-it also tells you where the nutrients comes from
Analysis?
Who does the analysis for the guaranteed the state
analysis?
Why is the P and K on the fertilizer bag -because we always have, based on old analytical methods
reported as P2O5 and K2O?
Why is ammonium nitrate fertilizer rarely because of it's explosive nature, it now as federal controls
used anymore?
What is the difference in how soluble and -soluble fertilizers are available for plant use right away
slow release fertilizers release nutrients? -slow release fertilizers are available slowly over a long period of time
Why is Europe imposing restrictions on because the coating plastic doesn't degrade
polymer-coated fertilizer?
What is the basic difference between -organic fertilizer has carbon
organic and inorganic fertilizer -inorganic fertilizer has no carbon
, -foliar means it is applied to the leaves, use a low spray volume
How does a foliar versus a suspension
-suspensions have (to some degree) solids in water. requires agitation
versus a solution differ?
-solution are completely mixed
Are foliar and liquid fertilizer the same -foliar goes on the leaves
thing? Why or why not? -liquids are applied to the ground and can include: suspension, solutions and foliar
_________ and _____ can be soil applied suspensions and solutions
is rock phosphate a readily available P No, it takes several years to be available
source?
What is muriate of potash? KCL -> potassium chloride (most common K source)
Which extractant is used in the SE? Mehlich
For which two things (two things we -soil pH
measure in soil) is a saturated paste the -electrical conductivity (EC)
correct extract?
saturated paste take soil and mix with the same amount of water
Do we have a calibrated and correlated no, we base this on crops
soil test for nitrogen (upon which we make
a fertilizerrecommendation)
what is the weight of an acre furrow slice 2 million pounds (the slice is 6 inches deep)
(in pounds)
be able to convert between pounds per -if 6": ppm x 2 = lb/A
acre and parts per million (ppm) with both -if 3": ppm = lb/A
a 6 inch and 3 in sampling depth
in what type of situations would OM be no-till, lots of manure application, grassy crops
higher, in soils (cropping, tillage)?
SOM all OM in the soil
microbial biomass OM in the micro biomass
recognizable OM (on surface)
litter
humus well decomposed (think peat moss)
What is the conversion between OC and OC x 2 = OM
OM?
Which type of OM is fastest to -fastest: sugars
decompose? Which is slowest? -slowest: lignin
How are fulvic acid, humic acid and humin based upon solubility in water
separated (what is it based upon)?
-low oxygen burning
What is pyrolysis?
-pyrolysis makes biochar
-boichar: bioproduct form pyrolysis
What is biochar? What is it made from?
-is a leftover from biofuel product, etc.
Three examples of inorganic carbon? CO2, biocarbonate (HCO3), and carbonates (CO3²)
Greatest C sink? sequester-the ocean
Largest human source of carbon burning of fossil Fuels
emissions?
Approximately how long did the The Age 50 years
of Guano last?
What was the Guano Islands Act? unoccupied island (chili, etc.) that had bird poop it belonged to the US
Fritz Haber developed (invented) which -haber-bosch process
process? -industrialized the atmospheric fixation of nitrogen
Haber Bosch process ________ the ______ of industrialized fixation
Nitrogen
-guaranteed analysis tells you the minimum
What is a guaranteed analysis? What two
percent nutrients in the fertilizer
things are included in a Guaranteed
-it also tells you where the nutrients comes from
Analysis?
Who does the analysis for the guaranteed the state
analysis?
Why is the P and K on the fertilizer bag -because we always have, based on old analytical methods
reported as P2O5 and K2O?
Why is ammonium nitrate fertilizer rarely because of it's explosive nature, it now as federal controls
used anymore?
What is the difference in how soluble and -soluble fertilizers are available for plant use right away
slow release fertilizers release nutrients? -slow release fertilizers are available slowly over a long period of time
Why is Europe imposing restrictions on because the coating plastic doesn't degrade
polymer-coated fertilizer?
What is the basic difference between -organic fertilizer has carbon
organic and inorganic fertilizer -inorganic fertilizer has no carbon
, -foliar means it is applied to the leaves, use a low spray volume
How does a foliar versus a suspension
-suspensions have (to some degree) solids in water. requires agitation
versus a solution differ?
-solution are completely mixed
Are foliar and liquid fertilizer the same -foliar goes on the leaves
thing? Why or why not? -liquids are applied to the ground and can include: suspension, solutions and foliar
_________ and _____ can be soil applied suspensions and solutions
is rock phosphate a readily available P No, it takes several years to be available
source?
What is muriate of potash? KCL -> potassium chloride (most common K source)
Which extractant is used in the SE? Mehlich
For which two things (two things we -soil pH
measure in soil) is a saturated paste the -electrical conductivity (EC)
correct extract?
saturated paste take soil and mix with the same amount of water
Do we have a calibrated and correlated no, we base this on crops
soil test for nitrogen (upon which we make
a fertilizerrecommendation)
what is the weight of an acre furrow slice 2 million pounds (the slice is 6 inches deep)
(in pounds)
be able to convert between pounds per -if 6": ppm x 2 = lb/A
acre and parts per million (ppm) with both -if 3": ppm = lb/A
a 6 inch and 3 in sampling depth
in what type of situations would OM be no-till, lots of manure application, grassy crops
higher, in soils (cropping, tillage)?
SOM all OM in the soil
microbial biomass OM in the micro biomass
recognizable OM (on surface)
litter
humus well decomposed (think peat moss)
What is the conversion between OC and OC x 2 = OM
OM?
Which type of OM is fastest to -fastest: sugars
decompose? Which is slowest? -slowest: lignin
How are fulvic acid, humic acid and humin based upon solubility in water
separated (what is it based upon)?
-low oxygen burning
What is pyrolysis?
-pyrolysis makes biochar
-boichar: bioproduct form pyrolysis
What is biochar? What is it made from?
-is a leftover from biofuel product, etc.
Three examples of inorganic carbon? CO2, biocarbonate (HCO3), and carbonates (CO3²)
Greatest C sink? sequester-the ocean
Largest human source of carbon burning of fossil Fuels
emissions?
