True/False Indicate whether the
statement is true or false.
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1
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A crop is any plant used by human beings.
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2
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Sugar lacks protein, vitamins and minerals and therefore is NOT a major dietary
component in developed nations like the U.S.A.
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3
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Corn syrup can be used to make sugar (sweeteners).
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4
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Today, we use more plant oils in our diet and less animal fats than we did 50
years ago.
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5
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Agronomic crops use both NO3 and NH4 forms of
nitrogen.
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6
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Acidity generally increases
with soil depth.
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7
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For long term results, annual soil sampling should
take place at the about the same time of the year, in nearly the same location and at the same
relative depth as past years. This allows a fair evaluation of past soil test results.
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8
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The greatest potential for error in soil testing is
in taking the sample.
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9
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Soil tests are always a good predictor of crop
response to starter fertilizer applications.
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10
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Plant nutrient deficiency symptoms can be masked by
other factors.
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Multiple Choice Identify the
choice that best completes the statement or answers the question.
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11
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The application of scientific principles and new technologies to agriculture is
the definition of.....
a | agribusiness | c | FFA | b | agriscience | d | agronomy |
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12
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George Washington Carver developed the....
a | hay baler | c | idea of soil conservation | b | cotton
gin | d | idea of crop
rotation |
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13
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Who developed the steel moldboard plow?
a | Henry Blair | c | Eli Whitney | b | John Deere | d | George Washington
Carver |
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14
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What is the name of the federal agency, which is part of the USDA, that is
represented by the acronym of NRCS?
a | National Registry of Conservation States | b | Natural Regional Care
Service | c | Nominal Resource Care School | d | Natural Resource Conservation
Service |
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15
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Which of the following is NOT an important fruit crop in tropical
regions?
a | Lemon | b | Papaya | c | Apricot | d | Pineapple |
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16
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Which of the following is NOT a career that requires a 4-year degree?
a | Plant propagator | c | Crop marketing specialist | b | Seed
technologist | d | Fertilizer
technologist |
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17
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Which of the following is NOT a career that requires a graduate degree?
a | Weed scientist | c | Plant breeder | b | Pesticide dealer | d | Biotechnologist |
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18
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Which of the following is NOT a common symptom of nitrogen deficiency?
a | slow growth | b | higher protein | c | early
maturity | d | less tillering in small grains & grasses |
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19
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Which of the following is NOT a form of nitrogen fixation?
a | biological | c | organic | b | industrial | d | natural
oxidation |
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20
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Which of the following forms of nitrogen fertilizer has the highest percentage
of fertilizer in it?
a | urea | c | ammonium sulfate | b | diammonium phosphate (DAP) | d | monoammonium phosphate
(MAP) |
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21
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When Ag lime is added to
fields, it is normally applied in units of ___________ per acre.
a | ounces | b | pounds | c | tons | d | kilograms |
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22
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Which of the following is NOT an objective of soil
testing labs?
a | high analytical standards | b | environmental protection | c | timely sample
turnaround | d | increased fertilizer sales | e | solve soil fertility problems that may be limiting
yields |
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Multiple Response Identify one
or more choices that best complete the statement or answer the question.
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23
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As discussed in class, which crops originated in America? (mark all that
apply)
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24
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In addition to grains, starchy foods are an important part of the diet for many
people around the world. Which of the following are examples of common starchy foods as discussed in
class? (mark all that apply)
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25
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Which of the following is nitrogen essential for? (mark all that apply)
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26
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Nitrogen can be lost from the soil in several ways. Chose all that apply.
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Yes/No Indicate whether you
agree with the statement.
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27
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Is a company that manufacturers lawnmowers considered an agribusiness?
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28
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Does adding fertilizer,
especially Nitrogen based fertilizers, speed up the rate that acidity develops?
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29
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Does liming basic soils
increase crop yield?
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Numeric Response
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30
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The average pH for North
American soils is ___________.
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31
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The average pH for Ohio soils
is _____________.
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32
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A soil that has a pH of 5.0 is
________ times more acidic than a soil that has a pH of 7.0.
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33
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Most productive soils are
between pH _________ and 8.0
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34
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For a soil to be considered
Sodic or Alkali, the pH value must usually be above ____________.
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Completion Complete each
statement.
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35
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__________________________ helps just 2% of our work force produce food for the
rest of the country.
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36
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One of the first successful agriculture machines, which led to other types of
agricultural machines being developed, was the _________________ _______ invented by Eli
Whitney.
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37
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The grain reaper, which was a machine that vastly improved the speed of
harvesting grain, was developed by _________________ ______________________.
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38
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The ________________ Acts of 1862 and 1890 provided for funding for Land Grant
Institutions to teach agriculture at the college level.
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39
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In temperate regions, _______________ is the primary grain.
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40
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In warmer, more tropical regions, _______________ is the primary grain
source.
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41
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The major fiber crop raised in the U.S.A. is _________________.
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42
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Nitrogen is a builder of ________________, an important nutritional element for
our diet.
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43
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Most nitrogen used by crops comes from the _________________.
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44
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The microbial breakdown of soil organic matter, resulting in the release of
energy and inorganic nutrients available for plant growth is known as ___________________.
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45
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Adding lime to soil supplies
_________________ and Magnesium to plants.
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46
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In acidic soils, certain
elements can become toxic to plants. One such element that is NOT an essential nutrient (and was
discussed in class) for plants is ____________________.
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47
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Base the number of soil samples needed, known as
_____________________
_______________________, on the expected variability of the
soil.
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48
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________________________ influences the degree of
mixing of nutrients in the soil and nutrient movement through the soil profile.
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49
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Some nutrients become ____________________ or
layered at various depths in the soil.
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50
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________________ analysis is a better tool to
assess some micronutrients.
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