Rain gardens, xeriscaping, rain barrels, using hand instead of power tools are example of ________ landscape practices.
A) unnecessary B) impractical C) sustainable D) expensive
Question 2Which of the following is considered the best soil for crop production?
A) silty clay B) loam C) clay D) sandy clay
Question 3The USDA Hardiness Zone Map and the AHS Heat Zone Map:
A) give the coldest and highest temperature ever recorded for a region, respectively.
B) are based on both temperature and light intensity in a region.
C) aid with selecting the right plant for the right place in the landscape.
D) list the plants that can grow in regions of the United States.
Question 4Soil compaction:
A) generally occurs when soil is dry and easily ground to a powder.
B) rarely occurs in field vegetable production.
C) limits the amount of soil that is available for the extraction of water and minerals by roots.
D) helps to reduce erosion by making the soil surface resistant to runoff.
Question 5Initially, turfgrass plants should be spaced at:
A) 20-25 plants per square inch. B) 5-7 plants per square inch.
C) 12-14 plants per square inch. D) 36-40 plants per square inch.
Question 6When preparing land for turfgrass, the surface should be:
A) level. B) convex. C) concave. D) lightly pocketed.
Question 7How does ethephon differ from other chemical plant growth regulators?
A) It is applied as a powder. B) It does not block gibberellin synthesis.
C) It affects root growth instead of stems. D) It lasts much longer.
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