Environmental Policy Collection - 8 Matching Results
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- Dual-Purpose Pines.
- Describes dual-purpose pines, which yield both naval stores and wood; provides suggestions for managing dual-purpose pines.
- Soil-Depleting, Soil-Conserving, and Soil-Building Crops.
- Discusses soil conservation in a clear and concise manner. Discusses soil building, soil conserving, and soil depleting crops as well as the minerals to be found in soil.
- Legumes in Soil Conservation Practices.
- Describes measures for preventing soil erosion through the planting of legumes.
- Nitrogen-fixing bacteria and legumes.
- Describes the importance of nitrogen-fixing bacteria on crops of legumes.
- Soil and water conservation in the Pacific Northwest.
- Describes types of erosion and methods for preventing the erosion of soil by water and wind.
- Arbor day, its purpose and observance.
- Discusses Arbor Day as a holiday that recognizes the importance of United States forests and discusses a citizen's duty to preserve them and foster new growth of trees.
- Game management on the farm.
- Describes ways that a farmer can support game on his land to make the best use of otherwise wasted land. Provides an overview of practical game management practices.
- Mosquito remedies and preventives.
- Describes measures, substances, and materials, both offensive and defensive, that have been found most effective against mosquitoes.