Agronomy Vocab

2. Layer of soil profile known as the R horizon
5. The underlying geological material in which soil forms
7. Item that can be bought, sold, or manufactured
13. The edible cobs that grow from the stalk
14. Points of growth along the stalk
15. Accumulation of roots, living organisms, and decayed plants and animals
16. A vertical cross section of the soil
17. The reproductive structure that emerges from the top of the plant
18. Secondary products that are made from agricultural products
19. Midsize soil particles (good water-holding ability and good fertility characteristics)
23. The proportion of sand, silt, and clay sized particles that make up mineral soil
25. Largest mineral particle (creates large pore spaces)
26. A layer a soil
27. The outer portion of earth's crust that supports plant growth

1. The central upright portion of the plant
3. The smallest-size soil particle
4. A standard measurement of the amount of agricultural production harvest
6. A device used to differentiate that several classes of soil
8. Surface layer in a soil profile referred to as A horizon
9. Matter Inorganic or nonliving substance from weathered rock to form soil
10. Photosynthetic structures that protrude from the stalk
11. The hair-like structures that absorb nutrients and water from the soil
12. Soil Soil sample that contains equal amounts of sand, silt, and clay. Highly fertile
20. Soil profile referred to as the O horizon
21. The fruit and seed of corn
22. Layer in a soil referred to as the B horizon
24. Protects each ear and is composed of individual kernels
27. For each ear fibrous silks emerge underneath the husk