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Study sets matching "ssc185"

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Study sets matching "ssc185"

76 terms
SSC185 Test 1
Malnutrition/undernutrition
Starvation
Famine
Marasmus
Deficiency of calories or essential nutrients
Extreme malnutrition; partial or total lack of essential nutr…
Acute malnutrition of >30% of children, 2 deaths per 10,000 p…
Severe malnutrition caused by severely reduced intake of prot…
Malnutrition/undernutrition
Deficiency of calories or essential nutrients
Starvation
Extreme malnutrition; partial or total lack of essential nutr…
61 terms
SSC 185 Test 2
Soil profile
O horizon
A horizon
B horizon
a historical record of environmental processes at a particula…
mostly organic matter (OM) from plant debris, high aeration
clay minerals mintermixed with OM, dissolved and suspended (f…
accumulation of dissolved and suspended materials, high water…
Soil profile
a historical record of environmental processes at a particula…
O horizon
mostly organic matter (OM) from plant debris, high aeration
76 terms
ssc 185 exam 3
adoption of several N management pract…
which identifies factors that enhance…
identify the four step soil testing-nu…
grassed waterways reduce soil loss by…
split application, rate applied, subsurface application, rota…
soil moisture content, % sand, soil surface cover, wind veloc…
sample, analyze, interpret, recommend
f
adoption of several N management pract…
split application, rate applied, subsurface application, rota…
which identifies factors that enhance…
soil moisture content, % sand, soil surface cover, wind veloc…
22 terms
ssc 185 exam 2
Describe 3 reasons why biological acti…
5 soil forming factors
Describe the difference between the zo…
Natural rainfall that has been pollute…
cycling nutrients (immobilization/mineralization), detoxifyin…
parent material, time, topography, climate, origins/biology
Eluviation: water percolates down soil column, transporting o…
SO2 + H2O + ½ O2 --> SO4^2- + 2H^+
Describe 3 reasons why biological acti…
cycling nutrients (immobilization/mineralization), detoxifyin…
5 soil forming factors
parent material, time, topography, climate, origins/biology
83 terms
SSC 185 Test 3
adoption of several N management pract…
which identifies factors that enhance…
identify the four step soil testing-nu…
grassed waterways reduce soil loss by…
split application, rate applied, subsurface application, rota…
soil moisture content, % sand, soil surface cover, wind veloc…
sample, analyze, interpret, recommend
f
adoption of several N management pract…
split application, rate applied, subsurface application, rota…
which identifies factors that enhance…
soil moisture content, % sand, soil surface cover, wind veloc…
53 terms
SSC 185 Exam 3
N management practices that can reduce…
What are the 4 steps in the soil testi…
In chlorosis bottom leaves turn yellow…
T/F... Most soils provide sufficient N to…
correct grade... split apply... crop rotation... apply below soil surf…
take soil sample... analyze soil... interpret info... make recommendat…
it's mobile in the plant... leaves >>> up stem
F
N management practices that can reduce…
correct grade... split apply... crop rotation... apply below soil surf…
What are the 4 steps in the soil testi…
take soil sample... analyze soil... interpret info... make recommendat…
64 terms
ssc 185 test 1
world food security, how many people a…
DES
_____ people per year die due to famine
in an X-Y diagram, ___ depends on ____
~ . 8 billion people
dietary energy supply... -human food available, expressed in kil…
2-5 million
y depends on x ... y = dependent variable... x = independent variable
world food security, how many people a…
~ . 8 billion people
DES
dietary energy supply... -human food available, expressed in kil…
77 terms
SSC 185 test 3
Role of soil in plant growth
soil texture: ____ and ____ are MOST i…
name the micronutrients:
name the macronutrients (other than C,…
1. physical support - anchor roots... 2. pore space - holds wate…
clay... organic matter... (both have neg charge-> attracts pos ions…
Cl, Fe, B Mn, Zn, Cu, Mo, Ni
N, K, P, Ca, Mg, S
Role of soil in plant growth
1. physical support - anchor roots... 2. pore space - holds wate…
soil texture: ____ and ____ are MOST i…
clay... organic matter... (both have neg charge-> attracts pos ions…
45 terms
SSC 185 Exam 1
DES
Adequate nutrition
FAO
What cultures have fallen in part from…
Dietary Energy Supply
Enough Energy and protein
Food and Agricultural Orginization (UN) in Rome, Italy
-Egypt (3000-500BC)... -Mayan (1500BC-900AD)... -Easter Island (800…
DES
Dietary Energy Supply
Adequate nutrition
Enough Energy and protein
45 terms
SSC 185 Test 1
C
C
C
E
Cause or Effect of undernourishment? Level of agricultural pr…
Cause or Effect of undernourishment? Literacy.
Cause or Effect of undernourishment? Drought.
Cause or Effect of undernourishment? Life Expectancy.
C
Cause or Effect of undernourishment? Level of agricultural pr…
C
Cause or Effect of undernourishment? Literacy.
70 terms
SSC 185 Exam 1
level of agricultural productivity
literacy
drought
life expectancy
cause
effect
cause
effect
level of agricultural productivity
cause
literacy
effect
28 terms
SSC 185 Test 2
Nutrient cycling, more infiltration=le…
Parent Material, Time, Topography, Cli…
False
True
Describe three reasons why biological activity in soil is ess…
Similar soil profiles develop under similar soil forming fact…
Soil water with a pH <7 is considered basic
Soil bacteria can immobilize N, which decreases N available t…
Nutrient cycling, more infiltration=le…
Describe three reasons why biological activity in soil is ess…
Parent Material, Time, Topography, Cli…
Similar soil profiles develop under similar soil forming fact…
55 terms
SSC 185 Exam 3
soil biology
soil web greatly influences:
microorganisms classified by 2 types:
bacteria
immense diversity of micro- and macro-organisms in soil compr…
soil formation, plant growth, and agricultural productivity
heterotrophs and autotrophs
1-celled organisms; decompose organic matter; some pathogens
soil biology
immense diversity of micro- and macro-organisms in soil compr…
soil web greatly influences:
soil formation, plant growth, and agricultural productivity
76 terms
ssc 185 exam 3
adoption of several N management pract…
Identify factors that enhance soil ero…
identify the four step soil testing-nu…
grassed waterways reduce soil loss by…
split application... rate applied... subsurface application... rotatio…
soil moisture content... % sand... soil surface cover... wind velocity
sample... analyze... interpret... recommend
f
adoption of several N management pract…
split application... rate applied... subsurface application... rotatio…
Identify factors that enhance soil ero…
soil moisture content... % sand... soil surface cover... wind velocity
70 terms
SSC 185 final exam
Plant Analysis: Why? (CRI)
Plant Analysis: How?
What do plant analysis results tell you?
When must plant samples be collected?
-confirm visual deficiency symptoms... -reveal hidden nutrient s…
1. plant tissue samples (leaves, stems) collected at recommen…
If plant nutrient level is deficient, adequate, or excessive…
At the recommended growth stage and plant part.
Plant Analysis: Why? (CRI)
-confirm visual deficiency symptoms... -reveal hidden nutrient s…
Plant Analysis: How?
1. plant tissue samples (leaves, stems) collected at recommen…
25 terms
SSC 185 test 1
Adequate Nutrition
Malnutrition
Starvation
Kwashiorkor
daily supply of nutrients (proteins,calories, vitamins, and m…
deficiency of calories or essential nutrients. If you are cal…
extreme undernutrition; partial or total lack of essential nu…
extreme protein deficiency. Is a common problem in developing…
Adequate Nutrition
daily supply of nutrients (proteins,calories, vitamins, and m…
Malnutrition
deficiency of calories or essential nutrients. If you are cal…
106 terms
ssc 185 test 2
Describe three reasons why biological…
nutrient cycling
Describe the unique behavior of H2O mo…
five soil forming factors:
-improves soil structure... -increases plant rooting depth... -supp…
one of the important functions of the soil biological communi…
-water can drop or pick up an H+ atom... -adding/losing forms H3…
1. biology... 2. climate... 3. topography/relief... 4. parent material…
Describe three reasons why biological…
-improves soil structure... -increases plant rooting depth... -supp…
nutrient cycling
one of the important functions of the soil biological communi…
58 terms
SSC 185 Test 1
What happens to arable land as populat…
What are the four reasons that ancient…
What does adequate nutrition consist of?
What is DES?
Arable land per person decreases
soil erosion, desertification, salinization, and nutrient dep…
daily supply of nutrients (protein, calories, vitamins, miner…
Dietary Energy Supply: Human food available, expressed in kil…
What happens to arable land as populat…
Arable land per person decreases
What are the four reasons that ancient…
soil erosion, desertification, salinization, and nutrient dep…
29 terms
SSC 185 pretest #3
Identify four macronutrients (other th…
If a plant is showing signs of necrosi…
Name two essential plant nutrient cati…
Define Cation Exchange Capacity and wh…
MACRO: nitrogen, magnesium, potassium, sulfur... MICRO: cobalt,…
they look dead, turn yellow (chlorosis), stunted growth
potassium, calcium
Cation exchange capacity (CEC) is a measure of the soil's abi…
Identify four macronutrients (other th…
MACRO: nitrogen, magnesium, potassium, sulfur... MICRO: cobalt,…
If a plant is showing signs of necrosi…
they look dead, turn yellow (chlorosis), stunted growth
111 terms
SSC 185 exam #1
3 pre-reqs for sustaining civilization
____ ______ is the dominant cause of s…
____ _______ has crippled civilization…
Mesopotamia timeline
fertile soil, water supply, level land with reasonable rainfa…
soil erosion
soil erosion
5000-2000 BC
3 pre-reqs for sustaining civilization
fertile soil, water supply, level land with reasonable rainfa…
____ ______ is the dominant cause of s…
soil erosion
60 terms
ssc 185 exam 2's
four horizons on the soil profile in o…
o
a
b
OABC
organic matter, high aeration
organic matter and clay material, high nutrients
less organic matter, high water holding capacity
four horizons on the soil profile in o…
OABC
o
organic matter, high aeration
50 terms
SSC185 Test 3
Plant analysis: why
Plant analysis: how
Soil testing
How to take a soil sample
1. Confirm visual deficiency symptoms... 2. Reveal hidden nutrie…
-Plant tissue samples... -Samples air dried... -Sent to lab... -Ground…
-Determines soils ability to supply plant nutrients... -Designed…
Obtain 4" soil core... 1. Discard organic top layer... 2. Put core…
Plant analysis: why
1. Confirm visual deficiency symptoms... 2. Reveal hidden nutrie…
Plant analysis: how
-Plant tissue samples... -Samples air dried... -Sent to lab... -Ground…
76 terms
SSC 185 Test 1 State
Malnutrition/undernutrition
Starvation
Famine
Marasmus
Deficiency of calories or essential nutrients
Extreme malnutrition; partial or total lack of essential nutr…
Acute malnutrition of >30% of children, 2 deaths per 10,000 p…
Severe malnutrition caused by severely reduced intake of prot…
Malnutrition/undernutrition
Deficiency of calories or essential nutrients
Starvation
Extreme malnutrition; partial or total lack of essential nutr…
45 terms
SSC 185 Test 1 C
DES
Adequate nutrition
FAO
What cultures have fallen in part from…
Dietary Energy Supply
Enough Energy and protein
Food and Agricultural Orginization (UN) in Rome, Italy
-Egypt (3000-500BC)... -Mayan (1500BC-900AD)... -Easter Island (800…
DES
Dietary Energy Supply
Adequate nutrition
Enough Energy and protein
45 terms
SSC 185 Test 1 D
Cause or Effect of undernourishment? L…
Cause or Effect of undernourishment? L…
Cause or Effect of undernourishment? D…
Cause or Effect of undernourishment? L…
C
E
C
E
Cause or Effect of undernourishment? L…
C
Cause or Effect of undernourishment? L…
E
22 terms
SSC 185 Test 2v2
Describe 3 reasons why biological acti…
5 soil forming factors
Describe the difference between the zo…
Natural rainfall that has been pollute…
cycling nutrients (immobilization/mineralization), detoxifyin…
parent material, time, topography, climate, origins/biology
Eluviation: water percolates down soil column, transporting o…
SO2 + H2O + ½ O2 --> SO4^2- + 2H^+
Describe 3 reasons why biological acti…
cycling nutrients (immobilization/mineralization), detoxifyin…
5 soil forming factors
parent material, time, topography, climate, origins/biology
53 terms
SSC 185 Test 1 B
world food security, how many people a…
DES
_____ people per year die due to famine
in an X-Y diagram, ___ depends on ____
~ 0. 8 billion people
dietary energy supply... -human food available, expressed in kil…
2-5 million
y depends on x ... y = dependent variable... x = independent variable
world food security, how many people a…
~ 0. 8 billion people
DES
dietary energy supply... -human food available, expressed in kil…
73 terms
SSC 185 Test 2v1
Soil profile
O horizon
A horizon
A horizon... (Water Holding Cap., Nutrien…
a historical record of environmental processes at a particula…
mostly organic matter (OM) from plant debris, high aeration
-clay minerals mixed with OM... -dissolved and suspended (fine c…
High, High, High
Soil profile
a historical record of environmental processes at a particula…
O horizon
mostly organic matter (OM) from plant debris, high aeration
58 terms
SSC 185 Test 2v3
topsoil
subsoil
e horizon
distinguish a and b horizon
o and a horizon
b and c horizon
excessive rainfall and weathering
a has more OM/nutrients and less clay
topsoil
o and a horizon
subsoil
b and c horizon
32 terms
ssc 185 exam 2 study guide
describe the reasons why biological ac…
similar soil profiles develop under si…
soil water with a pH <7 is considered…
soil bacteria can immobilize N, which…
cycling nutrients, detoxifying waste, soil formation, reduce…
climate, parent material, topography, time, biology/organisms
f
t (just converts and conserves, does not get rid of)
describe the reasons why biological ac…
cycling nutrients, detoxifying waste, soil formation, reduce…
similar soil profiles develop under si…
climate, parent material, topography, time, biology/organisms
26 terms
Soil Erosion and Conservation
Soil degrading processes
Soil conservation practices
Soil degradation effects on soil produ…
Erosion of surface soil
Soil erosion, OM loss, nutrient depletion
Crop rotation, reduced tillage, contour farming, strip croppi…
Erosion of surface soil, oxidation of OM, deterioration of so…
Physical loss of OM-rich topsoil
Soil degrading processes
Soil erosion, OM loss, nutrient depletion
Soil conservation practices
Crop rotation, reduced tillage, contour farming, strip croppi…
34 terms
Soil and Plant Nutrients
Plant growth factors
Role of soil in plant growth
Micronutrients
Macronutrients
Sunlight, water, carbon dioxide, and oxygen
Physical support, nutrients, pore space for water/air
Needed by plant in small amounts (8)
Needed by plant in large amounts (9, including C, H, and O)
Plant growth factors
Sunlight, water, carbon dioxide, and oxygen
Role of soil in plant growth
Physical support, nutrients, pore space for water/air
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