Amendment should include use of selected PPE for the task and be based on the

type of plant selected (e.g., annuals, biennials, perennials, bulbs, evergreens, coniferous, deciduous, vines, groundcovers, aquatics, shrubs, grasses, rushes, sedges, cacti, succulents, and tropicals)
plant nutrient requirements
soil analysis results (i.e., chemical, physical, and biological properties)
use of native plants, shrubs, and trees whenever possible
use of sustainable, beneficial, and conservation practices to

provide wildlife habitat (e.g., food and shelter for songbirds, waterfowl, hummingbirds, butterflies, beneficial insects)
mitigate erosion and poor drainage
reduce watering requirements, fertilizer requirements, and pollution
improve water quality
avoid the use of invasive species.

Teacher Resource: Native Plants for Wildlife Habitat and Conservation Landscaping—Chesapeake Bay Watershed, U.S. Fish and Wildlife Service, USDA

Process/Skill Questions:

What information does a soil analysis provide?
How many pounds of fertilizer will one need to apply to one’s lawn at a rate of 1 pound of nitrogen per 1,000 square feet of a 50-pound bag of 26-5-10?
How much phosphate and potash is one applying to a lawn when one applies 3.8 pounds of 26-5-10 fertilizer per 1,000 square feet?
How much area can be covered with a 50-pound bag of 26-5-10 fertilizer at the rate of 1 pound of nitrogen per 1,000 square feet?
How many 50-pound bags of 26-5-10 will one need to fertilize a 30,000-square-foot lawn at 1 pound of nitrogen per 1,000 square feet?
What are the differences among chemical, physical, and biological properties of the soil?
Why is knowledge of plant species important when making nutrient recommendations?