Selection, Establishment and Maintenance of Vegetation for Erosion Control of Roadside Areas in Georgia.

摘要

One hundred ninety two sites of 45 plots each were planted over a two year period throughout Georgia to examine problems associated with establishment and maintenance of vegetation on backslopes along highways. Variables under investigation which are covered in this report are (1) need for topsoil, (2) season of seedling, (3) slope of seedbed, (4) exposure aspect, (5) major plant species, (6) nurse crops, (7) maintenance fertilization, and (8) physiograph zone. Other variables under consideration are (1) rainfall, (2) air temperature, (3) plant canopy temperature, (4) soil temperature, (5) seedling rates, (6) growth regulators, and (7) soil density which will be treated in subsequent reports. Observations during three growing seasons confirm the findings from other states that topsoil is not required for establishment of grass and legumes.