Improvement of food resources

3. The process by which green plants use sunlight to synthesize foods from carbon dioxide and water.
5. The integration of trees and shrubs into agricultural landscapes.
7. A structure with walls and roof made chiefly of transparent material, used for growing plants.
11. A method of farming that uses natural processes and materials.
12. The simultaneous cultivation of multiple crops in the same space.
17. The process of converting nitrogen gas into a form that plants can absorb and use.
18. Organic matter used as fertilizer in agriculture.
21. The production of silk and the rearing of silkworms.
23. The direct manipulation of an organism's genes using biotechnology.
24. Microorganisms that enhance the availability of nutrients to plants.
26. Chemicals used to kill pests that can damage crops.
28. The practice of cultivating soil, growing crops, and raising animals.
29. The process of using worms to decompose organic food waste into a nutrient-rich material.

1. The method of growing plants without soil, using mineral nutrient solutions in an aqueous solvent.
2. The cultivation of aquatic organisms such as fish and plants.
3. The regulation or management of a species defined as a pest.
4. The artificial application of water to the soil to assist in the growing of crops.
6. Farming in sustainable ways based on an understanding of ecosystem services.
8. The maintenance of bee colonies for honey production.
9. Offspring resulting from the cross-breeding of different varieties or species.
10. Decomposed organic material used as a soil amendment.
13. The process of water movement through a plant and its evaporation from aerial parts.
14. The cultivation of a single crop in a given area.
15. The amount of crop produced in a given area.
16. The practice of growing different types of crops in the same area in sequential seasons.
19. Pesticides derived from natural materials such as animals, plants, bacteria, and certain minerals.
20. The art or practice of garden cultivation and management.
22. The displacement of the upper layer of soil, reducing its fertility.
25. Substances added to soil to enhance the growth of plants.
27. The removal of unwanted plants from the crop field.