Organic Fertilizer for Carrots
The response of growing plants to fertilizer use cannot always be predicted because of soil composition, local climate and specific nutrient requirements of the plant. A professional soil analysis, therefore, helps guide gardeners' selection of organic fertilizer for carrots. Does this Spark an idea?
-
Nutrient and Soil Requirements
-
Young, developing carrots need proper supplies of nitrogen, phosphorus and potassium for healthy growth. The Utah State University Extension advises using a nitrogen-based fertilizer to promote rapid carrot plant growth and root development. Carrots also grow best in a soil rich in decomposed organic matter. Soil should also be well-drained with a pH between 5.5 and 7.0.
Organic Options
-
Manure and any composted matter used as fertilizer should be well-composted to avoid forked and split root problems. If using manure, an analysis is recommended for a complete nutrient value profile. For carrots, Mother Earth News recommends an organic fertilizer containing kelp meal, bone meal, rock phosphate, guano, dolomitic lime, gypsum, agricultural lime and seed meal, along with a 1/4-inch layer of steer manure or finished compost.
-
Signs of Nutrient Imbalance
-
A lack of nitrogen will affect root color as a result of decreased carotene synthesis. Too much nitrogen in the soil will delay root development while causing excessive top growth, as well as hindering uptake of magnesium.
-
References
- International Fertilizer Industry Association: Carrot (Daucus carota L. var. sativus Hoff.)
- Oregon State University Extension: Carrots--Western Oregon
- Planet Natural: Growing Carrots
- Utah State University Extension: Carrots in the Garden
- University of Minnesota Extension: Carrots (Daucus carota)
- Mother Earth News: A Better Way to Fertilize Your Garden
Resources
- Photo Credit Martin Poole/Digital Vision/Getty Images