Busy. Please wait.
Log in with Clever
or
show password
Forgot Password?
Don't have an account?  Sign up 
Sign up using Clever
or
Username is available taken
show password

Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Crop Science Exam 2 Test

Enter the letter for the matching Answer
incorrect
1.
Biological Control of Insects
incorrect
2.
Give and example of a commercial source of Nitrogen
incorrect
3.
Protection
incorrect
4.
ridge till
incorrect
5.
Bacillus thuriengensis
incorrect
6.
the three major tools of the plant breeder are
incorrect
7.
The first basic strategy of any integrated pest management (IPM) program is
incorrect
8.
Weed Classification
incorrect
9.
the two most critical factors in determining effectiveness of a herbicide treatment are
incorrect
10.
Benefits of conservation tillage
incorrect
11.
The non-selective herbicide most often used in conjunction with GMO crops is
incorrect
12.
Sources of Phosphorus
incorrect
13.
One major disadvantage of over-use of insecticides for insect management is
incorrect
14.
One of the major problems faced in plant breeding (genetic improvement of plants) is
incorrect
15.
Genetic Resistance
incorrect
16.
Disking Harrows
incorrect
17.
in spite of receiving a fairly high amount of annual precipitation, water is often a limiting factor in crop production in Alabama and the Southeast because of
incorrect
18.
an example of a preventative method of weed management is
incorrect
19.
The type of organism responsible for the majority of plant diseases are
incorrect
20.
Systemic Chemical Control
A.
infect lepidoptera and worms, you can genetically engineer this into the plant and kill the lepidoptera and worm that tries to eat it
B.
lack of trained plant breeders
C.
using 1 insect to manage or control another. Ladybugs can be used to control aphids
D.
Ammonium Nitrate
E.
fungi
F.
general purpose tillage instrument that can smooth soil . used to incorporate pesticides
G.
the rate at which it is applied and the stage of crop of weed growth
H.
kills by getting on leaf tissue and being translocated throughout the plant. Good for perennials. Example: Roundup
I.
growing crops in pre-formed ridges alternated with debris
J.
identification of pest and any beneficial species that may be present
K.
Super Phosphate, Triple Super Phosphate, Diammonium Phosphate, Monoammonium Phosphate, Ammonium phosphate sulfate
L.
roundup
M.
1. Perennial vs. Annuals 2. Broadleaf vs. Grasses
N.
reduces labor and saves time. Saves fuel, reduces machinery wear, improves soil tilth, traps soil moisture, reduces soil erosion, provides cover for wildlife, improves air quality
O.
antibiosis: feeding on the plant causes physical harm to the insect. example, Hessian fly resistance in wheat
P.
doing something to specifically protect a plant from a known disease in a localized area. example: seed treatment
Q.
introduction, selection, and hybridization
R.
selection pressure creates insecticide resistant insect genotypes, beneficial insects as well as pest insects are killed, and it is harmful to the environment (birds, rabbits, humans)
S.
planting weed free seed
T.
poor water-holding capacity of soils, high evapotranspiration rates, and uneven seasonal rainfall distribution
Type the Answer that corresponds to the displayed Question.
incorrect
21.
Describe the single most important way that conservation tillage systems differ from conventional tillage systems
incorrect
22.
Herbicides can be grouped largely as either systemic or
incorrect
23.
Weeds are classified according to life cycle (annual vs. perennial) and
incorrect
24.
of the following, the only fertilizer material that is a commercial source of both N and P is
incorrect
25.
Give an example of a primary tillage implement
Type the Question that corresponds to the displayed Answer.
incorrect
26.
basically, exhausted as a tool except in unusual circumstances for most crops, less so for forages, cover crops and turf
incorrect
27.
idea is to cross two adapted parents, hoping to select superior progeny in the following segregating generations
incorrect
28.
exists in the plant primarily in ionic form, functions in electrolyte balance, manages the opening and closing of stomates
incorrect
29.
essentially a triple wedge, forced through the soil to invert the upper 6-8 inches completely, burying all plant debris. Soil conditions must be right, too moist or too dry does not get plowed efficiently. usually results in 100% residue burial
incorrect
30.
complete lack of tillage. planting a crop directly into existing plant debris

edit
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how
Created by: asculpepper
Popular Agriculture sets