Phosphorus Management Strategies for Delaware’s Agricultural Soils: The...
Introduction and Purpose Long-term use of fertilizer and manure nutrients on the Delmarva Peninsula has led to an enrichment of agricultural soils with phosphorus (P). Consequently, many soils in...
View ArticleFertilizer Basics
Revision Date: 11/19/2012 Susan S. Barton, Extension Specialist Ornamental Horticulture NPS-2 Water is a precious resource in Delaware. This series of publications addresses how homeowners can do...
View ArticleHow Does Your Lawn and Landscape Care Impact Water Quality
Revision Date: 11/19/2012 Susan S. Barton, Extension Specialist Dean C. Belt NPS-1 “A drop in the bucket.” This often-used expression gives many people the excuse to resist change in their normal way...
View ArticleInterpreting Soil Phosphorus and Potassium Tests
Introduction and Purpose The University of Delaware has rated soils in terms of the likelihood of profitable responses to additions of phosphorus (P) and potassium (K) from fertilizers, manures, and...
View ArticleLivable Lawns – Managing a Healthy Lawn
The benefits of a healthy, attractive lawn are many and diverse. This colorful, 29-page brochure will provide valuable information to grow and manage a healthy lawn in Delaware. Topics include site...
View ArticleDefining High Phosphorus Soils in Delaware
Phosphorus (P) is an essential nutrient for optimum plant growth. However, continued application of manures and fertilizers to soils has led to an accumulation of P in many Delaware soils to levels...
View ArticleUnderstanding the Requirements of the Delaware Nutrient Management Law
The Delaware Nutrient Management Law was passed in 1999 in response to continued water quality issues in Delaware. The purpose of the Delaware Nutrient Management Law is to: Establish a certification...
View ArticleNitrogen Management for Corn in Delaware: The Pre-Sidedress Nitrate Test
Unlike other nutrients, such as potassium or phosphorus, the nitrogen (N) requirement of corn cannot normally be met by N found in the soil. Consequently, most of the N needed by corn is supplied by...
View ArticleThe Impacts of Nitrogen and Phosphorus from Agriculture on Delaware’s Water...
Nitrogen (N) and phosphorus (P) are essential nutrients for all living organisms. Soil, fertilizer, and manure are all sources of N and P to growing crops. Atmospheric deposition (the air we breathe...
View ArticleTemporary Field Storage of Poultry Litter
The Delaware Department of Agriculture regulates activities involving the generation and application of nutrients under the Delaware Nutrient Management Law to improve the quality of ground and surface...
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