REFERENCE SUFFICIENCY RANGES
VEGETABLE CROPS
 |
Broccoli |
E. A. Hanlon and G. J. Hochmuth |
None established.
The most recently matured leaves should be sampled at heading. Concentrations above the sufficient range for nutrients that are immobile in the soil are indicative of high soil fertility. Fertilization with these nutrients in subsequent seasons should be reduced or eliminated.
| Macronutrients | |||||
| N | P | K | Ca | Mg | S |
| 3.0–4.5% | 0.3–0.5% | 1.5–4.0% | 1.2–2.5% | 0.23–0.40% | 0.2% |
| Micronutrients | ||||
| Fe | Mn | Zn | Cu | B |
| 40–300 ppm | 25–150 ppm | 45–90 ppm | 5–10 ppm | 30–50 ppm |
DRIS norms have not been established for broccoli.
Tabular data agree with the experimental evidence reported in articles listed in the References section. However, some values are lower than those reported by Jones and others (1991). The differences can be attributed to the fact that these values are based upon measurements within experiments, compared to mean values observed with time in the analytical laboratory.
Dechak KT, Smith CB. 1990. Yield responses and nutrient uptake of broccoli as affected by lime type and fertilizer. J Am Soc Hort Sci 115(5):737–40.
Hochmuth GJ, Hanlon EA. 1995. Commercial vegetable crop nutrient requirements in Florida. Gainesville (FL): University of Florida Cooperative Extension Service. Publication SP 177.
Hochmuth GJ, Maynard D, Vavrina C, Hanlon EA. 1991. Plant tissue analysis and interpretations for vegetable crops in Florida. Gainesville (FL): University of Florida Cooperative Extension Service. Publication SS-VEC-42.
Jones JB Jr, Wolf B, Mills HA. 1991. Plant analysis handbook: a practical sampling, preparation, analysis, and interpretation guide. Athens (GA): Micro-Macro Publishing. 213 p.
Liu L, Shelp BJ. 1993. Broccoli yield and nitrogen composition in response to different management regimes. Commun Soil Sci Plant Anal 24(1&2):61–84.
Magnifico V, Lattanzio V, Sarli G. 1979. Growth and nutrient removal by broccoli. J Am Soc Hort Sci 104(2):201–3.
Peck NH, MacDonald GE. 1986. Cauliflower, broccoli, and brussels sprouts responses to concentrated superphosphate and potassium chloride fertilization. J Am Soc Hort Sci 111(2):195–201.
Electronic Document Prepared by:
Catherine Stokes, Communication Specialist
Agronomic Division of the N.C. Department of Agriculture and Consumer Services. July 2000.