AEPS 315 Final Flashcards Complete Guide
Quiz 4
Nutrient and Soil Management
1. Compared to conventional soils with farmyard manure application, organic soil management results
in an increase in:
Correct:
Enzymatic activity
Incorrect:
phosphorus
potassium
soil pH
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2. In the Mäder et al. (2002) study, soil enzymes were highest in:
Correct:
biodynamic system
Incorrect:
- conventional synthetic fertilizer system
,- organic system
- conventional farmyard manure system
3. Proteolysis goes in this order:
Correct:
Protein -> amino acids -> ammonia
4. The number of earthworms will be highest in:
Correct:
- Permanent bluegrass/clover pastures
Incorrect:
- No-till soybeans
- No-till corn
- Conventional soybean
5. Which statement is wrong with regard to organic and conventional soils?
Correct:
None of the other statements is wrong
ALL ARE CORRECT
Incorrect:
Organic soils have more weed pressure than conventional soils
Organic soils have more aggregation than conventional soils
Organic soils have more biological activity than conventional soils
6. Which statement is TRUE with regard to essential micro-nutrients?
Correct:
Micro-nutrients are mostly needed for enzymes
Incorrect:
Micro-nutrients are less important than macro-nutrients
Micro-nutrients are mostly needed in the structure of major organic compounds (e.g., sugars)
Plants can still survive without micro-nutrients
7. Which statement is wrong with regard to micro-nutrients?
Correct:
Micro-nutrient deficiencies are widespread in organic systems
,Incorrect:
Salts or chelates of micronutrients might be allowed if deficiencies are documented by visual
observation or tissue analysis
Rock dust is a good source of micro-nutrients
Copper sulfate or copper hydroxide are allowed as algicides/fungicides, but not herbicides
8. The 3 pillars of sustainability are:
Correct:
Economic
Social
Environmental
9. Cation exchange capacity is highest in:
Correct:
Soil humus
Incorrect:
Chlorite
Sand
Kaolinite
10. Among the following materials, which one would generally have the highest nitrogen concentration?
Correct:
Blood Meal
Incorrect:
Compost
Bone Meal
Alfalfa meal
Slides 5a: ORGANIC NUTRIENT MGMT
Roles of MACROnutrients
(N) Nitrogen
Amino Acids, Protein Synthesis, Nucleic Acids
, (K) Potassium
Enzyme Activation, Winter Hardiness, Water Relations, N Uptake and Protein Synthesis, Disease
Resistance, Translocation, Starch Synthesis
(Ca) Calcium
Membrane Function, Cell Regulation
(P) Phosphorous
ATP, used in early life cycle, Root Formation, Nucleic Acids
(Mg) Magnesium
Chlorophyll, Co-factor in ATP Metabolism
(S) Sulfur
Amino Acids
ROLES OF MICROnutrients
1. (Fe) Iron
Chlorophyll, Cytochromes, Enzymes
2. (Mn) Manganese
Formation o fAmino Acids, Chloroplast Membrane, Enzyme Systems
3. (Cl) Chlorine
Photosynthetic Phosphorylation, Charge Balance, Osmotic Pressure
4. (B) Boron
Synthesis of Amino Acids and Proteins, Nodule Formation
5. (Cu) Copper
Nitrate Reduction, Photosynthesis Electron Transfer
6. (Zn) Zinc
Enzymatic Activities
7. (Mo) Molybdenum
Nitrate Reductase, N Fixation
8. (Ni) Nickel
Part of Urease (needed in N fixation)
Na? Sodium?
Quiz 4
Nutrient and Soil Management
1. Compared to conventional soils with farmyard manure application, organic soil management results
in an increase in:
Correct:
Enzymatic activity
Incorrect:
phosphorus
potassium
soil pH
Previous
Play
Next
Rewind 10 seconds
Move forward 10 seconds
Unmute
0:00
/
0:15
Full screen
Brainpower
Read More
2. In the Mäder et al. (2002) study, soil enzymes were highest in:
Correct:
biodynamic system
Incorrect:
- conventional synthetic fertilizer system
,- organic system
- conventional farmyard manure system
3. Proteolysis goes in this order:
Correct:
Protein -> amino acids -> ammonia
4. The number of earthworms will be highest in:
Correct:
- Permanent bluegrass/clover pastures
Incorrect:
- No-till soybeans
- No-till corn
- Conventional soybean
5. Which statement is wrong with regard to organic and conventional soils?
Correct:
None of the other statements is wrong
ALL ARE CORRECT
Incorrect:
Organic soils have more weed pressure than conventional soils
Organic soils have more aggregation than conventional soils
Organic soils have more biological activity than conventional soils
6. Which statement is TRUE with regard to essential micro-nutrients?
Correct:
Micro-nutrients are mostly needed for enzymes
Incorrect:
Micro-nutrients are less important than macro-nutrients
Micro-nutrients are mostly needed in the structure of major organic compounds (e.g., sugars)
Plants can still survive without micro-nutrients
7. Which statement is wrong with regard to micro-nutrients?
Correct:
Micro-nutrient deficiencies are widespread in organic systems
,Incorrect:
Salts or chelates of micronutrients might be allowed if deficiencies are documented by visual
observation or tissue analysis
Rock dust is a good source of micro-nutrients
Copper sulfate or copper hydroxide are allowed as algicides/fungicides, but not herbicides
8. The 3 pillars of sustainability are:
Correct:
Economic
Social
Environmental
9. Cation exchange capacity is highest in:
Correct:
Soil humus
Incorrect:
Chlorite
Sand
Kaolinite
10. Among the following materials, which one would generally have the highest nitrogen concentration?
Correct:
Blood Meal
Incorrect:
Compost
Bone Meal
Alfalfa meal
Slides 5a: ORGANIC NUTRIENT MGMT
Roles of MACROnutrients
(N) Nitrogen
Amino Acids, Protein Synthesis, Nucleic Acids
, (K) Potassium
Enzyme Activation, Winter Hardiness, Water Relations, N Uptake and Protein Synthesis, Disease
Resistance, Translocation, Starch Synthesis
(Ca) Calcium
Membrane Function, Cell Regulation
(P) Phosphorous
ATP, used in early life cycle, Root Formation, Nucleic Acids
(Mg) Magnesium
Chlorophyll, Co-factor in ATP Metabolism
(S) Sulfur
Amino Acids
ROLES OF MICROnutrients
1. (Fe) Iron
Chlorophyll, Cytochromes, Enzymes
2. (Mn) Manganese
Formation o fAmino Acids, Chloroplast Membrane, Enzyme Systems
3. (Cl) Chlorine
Photosynthetic Phosphorylation, Charge Balance, Osmotic Pressure
4. (B) Boron
Synthesis of Amino Acids and Proteins, Nodule Formation
5. (Cu) Copper
Nitrate Reduction, Photosynthesis Electron Transfer
6. (Zn) Zinc
Enzymatic Activities
7. (Mo) Molybdenum
Nitrate Reductase, N Fixation
8. (Ni) Nickel
Part of Urease (needed in N fixation)
Na? Sodium?
