Solve these clues to fill the grid.
- Any animal or plant material used to fertilize land especially animal excreta usually with litter
- 2 Across
- The secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has (plural)
- 5 Across
- Living things like dogs and birds
- 7 Across
- Any substance such as manure or a mixture of nitrates used to make soil more ___ (plural)
- 11 Across
- Sweet food that grows on plants
- 12 Across
- A fertilizer that is derived from animal or vegetable matter
- 13 Across
- The part of the earth's surface consisting of humus and disintegrated rock
- 14 Across
- A chemical agent that destroys plants or inhibits their growth (plural)
- 15 Across
- Any animals kept for use or profit
- 16 Across
- Living things like trees and flowers that grow in soil
- 1 Down
- The practice of cultivating the land or raising stock
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- Someone regarded as certain to succeed
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- Any substance that can be taken in by a green plant and used in organic synthesis (plural)
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- Plant foods like carrots and broccoli
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- A chemical substance derivable from a mold or bacterium that can kill microorganisms and cure (plural)
- 9 Down
- A chemical used to kill pests (plural)
- 10 Down