Indiana FFA Horticulture Test Questions with Solved
Answers
1. Adequate amounts of nitrogen, phosphorus & potassium are necessary for a healthy
lawn. (T/F): TRUE
2. Grass clippings left on your lawn will provide the turf with nitrogen. (T/F): -
TRUE
3. During winter months fertilizer application should be decreased since in- door
plants are not receiving as much light. (T/F): TRUE
4. Fertilizer requirements for vegetables should be established during the harvest
season. (T/F): FALSE
5. When Mulching annuals & perennials in landscape:: conserve soil moisture,
control weeds, moderate soil temps
6. Too much of this element fertilizer provided before vegetables have begun to set
fruit can reduce yields:: NITROGEN
7. What nutrient proportion is most beneficial for watermelon?: Low N, HighK & K,
promotes good fruit development
8. Turf fertilizer contains N P K referred to as:: COMPLETE FERTILIZER
9. This element is the most important for lush, green, top growth:: nitrogen
10.Adding sand or perlite to potting soil:: aerifies soil, improves root growth,
ensures good drainage
1
18
,11.Most vegetables perform best in the soil that is:: slightly acidic (pH 6-6.8)
12.A build-up of white crusty material on the soil surface of rim of a flowerpot
indicates:: salt accumulation
13.Bone meal is high in what element?: Phosphorous
14.Good fertilizer profile lawns is:: 25-5-10
15.Most important time to fertilize lawns is:: FALL
16.Too much of this element before vegetables have begun to fruit can reduce yields::
nitrogen
17.Application of Nitrogen-only material such as area for lawn fertilization is
recommended for:: late fall
18.Herbicides are generally not recommended for:: vegetable gardens
19.1st symptoms of wilt disease in tomatoes is:: yellowing of the lower leaves
20."Damping off" is a disease which affects:: seedling development
21.Which of the following best describes powdery mildew:: white blotches on stems,
leaves & fruit
22.Herbicides that are to be used among a certain food crop is not listed on the
herbicide label , / is it still safe to use among that food crop?: NO
23.Roses should be watered in the morning or early afternoon to prevent:: -
foliar disease
24.Use only healthy, certified disease-free tubers of known origin for "seed" when
2
18
, planting:: white, red, purple or yellow potatoes
3
18
Answers
1. Adequate amounts of nitrogen, phosphorus & potassium are necessary for a healthy
lawn. (T/F): TRUE
2. Grass clippings left on your lawn will provide the turf with nitrogen. (T/F): -
TRUE
3. During winter months fertilizer application should be decreased since in- door
plants are not receiving as much light. (T/F): TRUE
4. Fertilizer requirements for vegetables should be established during the harvest
season. (T/F): FALSE
5. When Mulching annuals & perennials in landscape:: conserve soil moisture,
control weeds, moderate soil temps
6. Too much of this element fertilizer provided before vegetables have begun to set
fruit can reduce yields:: NITROGEN
7. What nutrient proportion is most beneficial for watermelon?: Low N, HighK & K,
promotes good fruit development
8. Turf fertilizer contains N P K referred to as:: COMPLETE FERTILIZER
9. This element is the most important for lush, green, top growth:: nitrogen
10.Adding sand or perlite to potting soil:: aerifies soil, improves root growth,
ensures good drainage
1
18
,11.Most vegetables perform best in the soil that is:: slightly acidic (pH 6-6.8)
12.A build-up of white crusty material on the soil surface of rim of a flowerpot
indicates:: salt accumulation
13.Bone meal is high in what element?: Phosphorous
14.Good fertilizer profile lawns is:: 25-5-10
15.Most important time to fertilize lawns is:: FALL
16.Too much of this element before vegetables have begun to fruit can reduce yields::
nitrogen
17.Application of Nitrogen-only material such as area for lawn fertilization is
recommended for:: late fall
18.Herbicides are generally not recommended for:: vegetable gardens
19.1st symptoms of wilt disease in tomatoes is:: yellowing of the lower leaves
20."Damping off" is a disease which affects:: seedling development
21.Which of the following best describes powdery mildew:: white blotches on stems,
leaves & fruit
22.Herbicides that are to be used among a certain food crop is not listed on the
herbicide label , / is it still safe to use among that food crop?: NO
23.Roses should be watered in the morning or early afternoon to prevent:: -
foliar disease
24.Use only healthy, certified disease-free tubers of known origin for "seed" when
2
18
, planting:: white, red, purple or yellow potatoes
3
18
