Science in Context database articles can provide some background information for you about what nutrients are needed for plant growth.
Student Resources in Context is a general purpose database. These articles can also be used for background information.
All About Growing Kale and Collards from Gale's Gardening, Landscape and Horticulture database.
It's Time for the Growing of the Greens also from Gale's Gardening, Landscape and Horticulture database.
#1 Expert shares: organic potato tips: the full scoop on successfully growing and storing spuds.
Why Soil Matters briefly discusses the importance of fertile soil. GOOD, SHORT VIDEO FOR EVERYONE TO WATCH.
The Role of Acids and Bases in Soil is a video about why farmers sometimes add ammonia to soil and the effect is has on pH. USE YOUR ORHS USERNAME AND PASSWORD TO LOGIN TO DISCOVERY EDUCATION.
Plant Nutrition is a video about nutrients found in soil that are necessary for healthy plant growth.
Soil Test - pH and NPK Nitrogen Phosphorus and Potassium is a video describing how J&J Acres, a hobby farm, tested its soil chemistry.
Composting from National Geographic.
The Perfect Compost Recipe How to Get Your Compost Heap Cooking!