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Agriscience, Unit 18 worksheet

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Presentation on theme: "Agriscience, Unit 18 worksheet"— Presentation transcript:

1 Agriscience, Unit 18 worksheet

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3 What happens when fertilizer is added to the soil for plant use?

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6 2. An 80-lb bag of 10-10-12 contains how lbs each of nitrogen, phosphorus, and potassium:

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8 3. Organic fertilizers made from dried and pulverized manure are:

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10 4. Which plant growing media is a volcanic ash material?

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12 5. What is the general term given to anything added to a soil to provide additional organic matter, specific nutrients or modify soil phs?

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14 6. The availability and type of basic chemical elements in the plant is called:

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16 7. The fertilizer application used on row crops where the fertilizer is placed in bands about 8 inches from the row is known as:

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18 8. Hydroponically grown plants differ principally from soil-grown plants in that they require what type of support:

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20 9. The measure of the degree of acidity (sourness) and alkalinity ( sweetness) of soil is called:

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22 10. What is a characteristic of water that can affect the growth of a plant?

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24 11. Warm season vegetables and most flowers grow best in temperatures between:

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26 12. Most plants require a pH somewhere between:

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28 13. Nutrients needed in relatively large amounts by plants are called:

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30 14. Yellowing of the leaves of a plant caused by lacking of nitrogen is called:

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32 15. The three primary nutrients supplied in a complete fertilizer are:

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34 16. Soil pH generally is raised by adding:

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36 17. Soil pH affects the availability of:

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38 18. What is applied to lower the pH value of soil?

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40 19. List five examples of a plant growing media is:

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44 20. Most nutrients are absorbed in solution as:

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46 21. What form must most nutrients become before they can be absorbed by a plant?

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48 22. What type of fertilizer is animal manure?

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50 23. Which plant growing media is a mineral mica-type material

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