Plant science 3

2. material: relating to living things; made without the use of artificial chemicals
5. a softer, usually edible part of a nut, seed, or fruit stone contained within a hard shell
7. Nutrient Stewardship System: helps farmers apply the right source of nutrients at the right rate, time and place on their fields
14. the stage of plant growth where flowers and fruit are formed
16. the male part of a corn plant that emerges from the top of the plant and bears many small flowers that release pollen grains
20. the flat or needlelike part of a plant where photosynthesis happens
21. a substance that is lacking

1. a measurement of the amount of heat needed for a corn plant to reach various stages of growth
3. a mixture made of decaying organic material used to fertilize plants and amend soils
4. any material of natural or synthetic origin that is applied to soils or plant tissues to supply one or more nutrients essential to plant growth
6. a primary agricultural product that can be bought and sold
8. animal waste used for fertilizing land
9. a period of plant growth between germination and flowering
10. the part of the plant that grows into the soil to anchor the plant and collect water and nutrients
11. any material of natural or synthetic origin that is applied to soils or plant tissues to supply one or more nutrients essential to plant growth
12. the part of a plant stem from which one or more leaves emerge, often forming a slight swelling or knob
13. manure: vegetation that is plowed into the field to improve soil composition; normally a legume such as beans or alfalfa
15. a dry outer covering of some fruit, seeds, or nuts
17. any material added to soil to make it more productive such as fertilizer or compost
18. management practices: methods that can improve efficiency, optimize resources, and prevent or help reduce pollution
19. the female parts of the corn plant which are found in the shoot that will develop into the ear of corn