Quiz
Crop Management
Create a free account to finish this quiz
Save your progress and see your final score.
Already have an account? Sign in
Questions in this quiz (68)
1which of the following is normally NOT considered when comparing a crop rotation with a monoculture?
- Asociological consequences
- Bintegrated pest management
- Clabor and equipment needs
- Dyields
2which of the following is an advantage of a crop rotation over a monoculture system
- Ahigher level of management needed
- Btiming of fert and pesticide application
- Cless equipment needed
- Drisk spread across more than one commodity
3which of the following is a limitation of a crop rotation over a monoculture system?
- Amore equipment needed
- Blower level of management needed
- Cyield of all crops in the rotation increase
- Dirrigation usually needed
4------- increases available N, reduces erosion and increase infiltration
- Acover crops
- Bfallow
- Cnurse crops
- Dcompanion crops
5a double crop system is where two crops are grown in the same field over ------
- A36 months
- B24 months
- C18 months
- D12 months
6----- is not a limitatoin of cover or companion crops
- Aincreased soil erosion
- Breduced yields
- Csoil water depletion
- Dincreased cost
7fields are fallowed to conserve -----
- Aenergy
- Bnutrients
- Cwater
- Dpesticides
8pesticide carryover is most important in -------- crops
- Arotational
- Bcover
- Ccompanion
- Dadjacent
9----- is when a plant produces a chemicals toxin that impairs the growth of a different plant
- Aallelopathy
- Bantibiotics
- Cautotoxicity
- Dsymbiosis
10in clean till systems, tillage can spread ------
- Ainsects
- Bdiseases
- Cweeds
- DB & C
11starter fertilizer is commonly recommended for -----
- Apastures
- Bno till
- Cclean till
- Dall crops
12the soil test values in the top 2 inches of soil are ----- to soil test values below the top 2 inches in a no till system
- Aequal to
- Blarger than
- Csmaller than
- Dless important than
13which of the following must be sufficiently high to justify conversion of non cropland to cropland
- Anutrient availability
- Bpest populations
- Ccrop yield potential
- Derosion potential
14offspring of 2 plants which differ genetically are ------
- Aclones
- Bhybrids
- Csisters
- Dparents
15pollination is ---- in an open pollinated variety
- Aartificial
- Bcontrolled
- Cnegligible
- Dnatural
16which of the following is usually most important when selecting a variety for planting?
- Ainsect resistance
- Byield potential
- Clodging rating
- Dirrigation needs
17transgenic crops contain:
- Agenes from another organism
- Baltered genes from the same species
- Cuntransformed genes
- Dall above
18which of the following is a characteristic of a well designed field trial
- Aunreplicated strips
- Breplicated strips
- Chigher than normal fert rates
- Dirrigation of a dryland crop
19GMOs include :
- Atransgenic crops
- Bmutated crops by radiation
- Cnatural mutation
- Dall above
20if the yields of varieties A, B and C are 45, 50, and 44 bu/ac, and the LSD is 5, which are true?
- Ano differences
- BB yield is higher than C
- CB yield is higher than A and C
- DA is higher than C
21which of the following is NOT usually found in a seed tag
- Aseed size
- Bpure seed percent
- Cother crop seed percent
- Dgermination percent
22seed quality is usually highest for seed stored under :
- Alow temp and humidity
- Blow temp and light
- Clow temp and oxygen
- Dgermination percent
23which of the following is a limitation of seed treatment
- Amore seed diseases
- Bless symbiotic N fixation
- Ccost
- Dhigher germination percentage
24storage in a ---- likely decreases bacterial inoculum viability the most
- Apesticide shed
- Breefer
- Ccool dry building
- Ddealer room
25which germination test is best to evaluate germination under optimum conditions
- Awet towel
- Bdry towel
- Cwarm
- Dcold
26if pure seed content is 90% and germination is 90%, what is the %PLS?
- A90%
- B99%
- C100%
- D81%
27if % pure live seed is 80% and the recommended seeding rate is 80 lbs/ac, what adjusted seed rate should be used?
- A100 lbs/ac
- B64 lbs/ac
- C80 lbs/ac
- D88 lbs/ac
28a benefit of using certified seed is:
- Aincreased weed pressure
- Bstable, high yields
- Cno irrigation
- Dreduced fert needs
29which of the following would most likely decrease germination percentage?
- Asoil temp of 65*F
- Boxygen concentration of 18%
- Cdry soil
- Dgranular soil structure
30which of the following is NOT used in determine depth of planting
- Asoil texture with depth
- Bsoil moisture with depth
- Csoil temp with depth
- Dsoil aeration with depth
31which of the following factors is usually most important in determining when to plant
- Aseed rate
- Bsoil moisture
- Csoil aeration
- Dsoil pH
32which of the following factors is usually the most likely the result of seeding a summer crop too early
- Areduced germination
- Bhigher yield
- Cless seedling disease
- Dmore lodging
33which of the following would potentially lead to a reduced seeding rate
- Aadverse weather
- Bno till
- Coptimum soil moisture
- Dincreased seed size
34if you count 10 plants in 5 sq ft of a field at several points in that field, what is the approximate plant population?
- A45K
- B85K
- C125K
- D145K
35seeding rate is ---- plant population
- Aless than
- Bmore than
- Cequal to
- Dless than or equal to
36advantages of starter fert include:
- Aless weeds
- Blower irrigation costs
- Cless erosion
- Dmore vigor start
37the crop growth stage where roots, stems and leaves develop is:
- Avegetative
- Bflowering
- Cgermination
- Dmaturation
38growing degree days are NOT useful in determining when to:
- Atop dress nitrogen
- Bharvest
- Cinitiate tillage
- Dapply pesticides
39if the base temp is 60*F, day temp is 80*F, and the max temp is 95*F, how many heat units have accumulated?
- A20
- B60
- C80
- D0
40in many crops, night length is important in triggering
- Agermination
- Bflowering
- Cphotosynthesis
- Dvernalizatoin
41the growing point of a grass is:
- Aleaf tip
- Broot tip
- Cflower
- Dintercalary meristem
42the optimum temp for crop growth and development ----- with crop growth stage
- Aincreases
- Bdecreases
- Cchanges
- Dno change
43water needs of a crop typically increase during the season to a max, followed by :
- Aa second increase at harvest
- Ba level period until harvest
- Cdecline to harvest
- Drainfall
44which of the following accelerates canopy closure
- Awide rows
- Bnarrow rows
- Cupright plant growth
- Dlower plant population
45a plant that lives 10 years is
- Asummer annual
- Bwinter annual
- Cbiennial
- Dperennial
46crop root growth can be effected by
- Adiseases
- Binsects
- Cacidic soils
- Dall above
47which root system concentrates nutrient uptake in surface soils
- Amembranes
- Bfilamentous
- Ctap
- Dfibrous
48a crop should be replanted when stand is lost due to some stress when:
- Ait is economically justified
- Bwhen the field looks bad
- Cwhen your neighbor replants
- Dwhen you have no crop insurance
49which of the following may eliminate the possibility of replant
- Alate initial planting
- Bgood weather
- Cgood seed supply
- Dsoil fertility
50when diagnosing a crop production problem in the field, you should:
- Aconsider diseases then fertility
- Bconsider herbicide damage first
- Ccompare damage areas with normal areas
- Dwait until problem disappears
51which of the following is probably not helpful in diagnosing a crop problem in the field
- Acrop history
- Bpesticide history
- Cseed depth
- Ddays of sunlight
52which is most precise?
- A20,30,40
- B4,5,6
- C7,10,14
- D15,35,50
53----- is used to locate a possession in the field
- AGIS
- BGPS
- CGUS
- DUPS
54--- is used to apply fert, pesticides, and seeds at different rates across a field
- AGPS
- BUPS
- CVRT
- DCRT
55---- is an area that is managed similarly for a given crop input
- ACMZ
- BUPS
- CVRT
- DCRT
56sandy soils have greater ------- than clay loam soils which can affect yield
- Adrought potential
- Bwater holding capacity
- Cavailable water
- Dsurface area
57geological coordinates combine ------ and ------
- Alat and lon
- Btownship and range
- Cprincipal meridian and state
- Dcity and town boundaries
58yield maps ----- from year to year for the same crop
- Avary
- Bremain constant
- Csuperimpose
- Dincrease
59yield monitors are :
- Aindependent of combine speed
- Bused to estimate crop yields prior to harvest
- Calways compatible with mapping software
- Dused to estimate yield variation within a field
60harvest date is effected by:
- Ahybrid or variety
- Bexcess soil P
- Cneutral soil pH
- Dseed quality
61which of the following harvest conditions most likely would reduce seed quality?
- Alow humidity
- Brain/dry cycles
- Csunshine
- Dlight wind
62identity-preserved IP crops are :
- Aused in strip cropping with cross pollinated varieties of the same crop
- Bstored in the same bin as other varieties of the same crop
- Charvested before cleaning the combine
- Dkept separate form other varieties of the same crop
63which of the following factors is most important in maintaining crop quality during storage
- Amoisture at harvest
- Buse of fungicides
- Cair tight storage
- Dpresence of beneficial insects
64which of the following most likely will damage grain kernels
- Aimproper thresher speed
- Bslow ground speed in combining
- Cexcessive weed seed
- Dhigh fan speed
65crop mix on a farm is used to reduce -----
- Aincome
- Bliability
- Crisk
- Dprofit
66if the value of the crop is $3/bu, and a production practice costs $11.50/ac, which of the following yield increase would make it profitable
- A1bu/ac
- B2bu/ac
- C3bu/ac
- D4bu/ac
67---- is a commodity crop
- Awalnuts
- Bwheat
- Cflowers
- Dfigs
68if the current local cash price of a crop is $12/bu, and the future price is $9/bu, the basis is
- A$3/bu
- B-$3/bu
- C3/4
- D$21/bu
Information
- Description
- CCA CCA international Study quiz Quiz on Crop Management , created by Calvin Sabrowski on 30/12/2022.
- Author
- Calvin Sabrowski
- Language
- English
- Views
- 1
- Tags
- Rating
- No ratings yet Rate this quiz