Quiz
Soil Nutrients and Plant Fertilization Midterm II
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Perguntas do quiz (25)
1In a single year, uncovered manure loses [blank_start]3[blank_end] % of solid mass: [blank_start]10[blank_end] % of the total Nitrogen content, 3% of the total [blank_start]Phosphorus[blank_end], and 20% of the total [blank_start]Potash[blank_end] content.
- A3
- B6
- C1
- D10
- E15
- F50
- G5
- HPhosphorus
- INitrogen
- JCalcium
- KPotash
- LNitrogen
- MWater
2For each of the following materials, determine if it is a "brown" or a "green" nitrogen contributor.
Manure [blank_start]Green[blank_end]
Wood chips [blank_start]Brown[blank_end]
High Nitrogen material [blank_start]Green[blank_end]
Low Nitrogen material [blank_start]Brown[blank_end]
- AGreen
- BBrown
- CBrown
- DGreen
- EGreen
- FBrown
- GBrown
- HGreen
3As a soil nutrient, potassium behaves similarly to [blank_start]Phosphorus[blank_end] , because it is found predominantly in [blank_start]Mineral[blank_end] form and is more subject to [blank_start]Biological[blank_end] weathering processes.
- APhosphorus
- BNitrogen
- CMineral
- DGaseous
- ELiquid
- FBiological
- GChemical
- HPhysical
4The transformation from sulfites to sulfates is classified as [blank_start][biological][blank_end] weathering, and is an example of an [blank_start][oxidation][blank_end] process.
- Abiological
- Bphysical
- Coxidation
- Dreduction
- Ecombustion
5And acre furrow slice is (area)__________________ of soil ______________________ deep.
- A1 acre; 6 inches
- B1 hectare; 6 inches
- C1 hectare; 12 inches
- D1 acre, 12 inches
- E2 million pounds; 12 inches
6In compost, you want a Carbon/Nitrogen ratio of:
- A50:50
- B60:1
- C60%
- D30:1
7What is the ideal water content in compost?
- A100%
- B25%
- C40-60%
- D60-80%
- E50%
8How many tons of manure is given on average in a "cow year"?
- A25
- B10
- C15
- D5
- E20
9Once your compost has cooled, how long should it cure?
- A3-6 months
- B3 months
- C1-3 months
- DNot necessary if only vegetable waste
10A hot compost encourages ___________________ processes, and requires temps ______________________ deg F.
- AMesophilic; up to 100
- BThermophilic; between 110-130
- CMesophilic; between 90-110
- DMesophilic; between 110-130
- EThermophilic; up too 100
11Which is correct regarding S immobilization?
- ASoil Sulfur is immobilized by low pH
- BInorganic S is immobilized when Carbon: Sulfur ratios exceed 80:1
- CInorganic S is immobilized when Carbon: Sulfur ratios exceed 300:1
- DOrganic S is immobilized when Carbon: Sulfur ratios exceed 300:1
12Which is NOT recommended for K management?
- AManaging irrigation for more even soil water throughout the growing season
- BIncreasing crop residues left on-site
- CIncreasing soil acidity
- DReducing tillage
- EIncreasing organic matter
13Which of the following livestock have the lowest N available in the liquid manure form?
- ADairy Cow
- BChickens
- CHog
- DBeef Cow
14What are the three main ingredients in compost?
- AWater, Organic Matter and Bacteria
- BWater, Oxygen and Organic Matter
- COrganic Matter, Water and Heat
- DOrganic Matter, Oxygen and Nitrogen
15Which are uses for Potassium in the plant body? Select all.
- AStructural in tissue formation
- BDefense against plant diseases
- CRegulation of stoma opening and closing
- DPlant stress mitigation
16You compost pile is too dry and is growing mold on the chunks of organic matter. What's the problem?
- ATurning too frequently
- BNot enough brown matter
- CNot turning frequently enough
- DNot enough green matter
17The strong smell that accompanies brassicas like brussel sprouts and cabbage are due to luxury consumption of:
- APotassium
- BSalts
- CCompost
- DSulfur
- EOrganic matter
18Which could be a contributing factor to increasing sulfur deficiencies?
- ARemoval of S impurities in fertilizers
- BThe ability for soils to fix S and removed it from the soil solution
- CHigh cost of commercial fertilizers with S
- DSO4 resulting in acid rain (sulfuric acid)
19The recommendation for your crop is 160 lbs of P2O5 in order to grow corn this year.
Concentrate Super Phosphate (0-46-0) comes in 50-lb bags, priced at $11 each.
Non-concentrated Super Phosphate (0-20-0) comes in 90-lb bags priced at $5 each.
Which is the cheaper option for meeting your nutrient needs?
Remember: lbs (Nutreint Recomended)/(% Nutrient in Material Used
* (100)- AConcentrated Superphosphate
- BRegular Super Phosphate
- CThey cost about the same
20You are mixing one ton (2000 lbs) of a 10-10-10 fertilizer.
1. How many pounds of Nitrogen do you need in the final product? [blank_start]200[blank_end] lbs
2. Your Nitrogen component is coming from a pelletized urea, 46-0-0. You need a total of 200 lbs of Nitrogen in the final product. How much of the pelletized urea should you add to your blended fertilizer? [blank_start]218[blank_end] lbs
- A200
- B150
- C250
- D100
- E218
- F435
- G310
21Burned lime has a CCE of 179. Are you going to need more of this product or less of this product in comparison to a ground lime stone with a CCE of 100 to meet a liming recommendation?
- AThe same amount of both
- BMore
- CLess
22What are the attributes of a liming product that determines the overall lime score? Select all of the correct answers.
- Atotal weight recommended
- BCCE
- CGrade
- DMoisture Content
- EFineness Factor
23Which of the following is a time that lime should NOT be applied
- ASpring before crop planting
- BFall without fall crop
- Cturf that is frozen/frost-covered
- Ddays exceeding 80 deg F
24Semi-solid cow manure contains ____________________ dry matter.
- AMore than 25%
- B2-12%
- C12-20%
- D15-29%
25Which of the following can be included in a compost destined for a vegetable garden? (Select all that apply)
- APressure-treated wood more than 10 years old
- BAsh from the wood fire pit
- CYour neighbor's dead hamster
- DEnd-of-the-year tomatoes with blight
- EPulled Tansy Ragwort weeds
- Fnone of these
Informações
- Descrição
- Final Exam
- Autor
- Tanner Manson
- Idioma
- English
- Visualizações
- 19
- Etiquetas
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