Monitor Nutrient Uptake in Broccoli, Kale, Cauliflower, Cabbage & Other Cole Crops
Maximize Marketable Yield in These Nutrient-Hungry Crops
Brassicas are known for their rapid growth, shallow roots, and high nutrient demands—especially for calcium, sulfur, and boron. Deficiencies in these or other key nutrients often go unnoticed until symptoms reduce quality, cause hollow stems, or limit head formation.
The Brassica Plant Tissue Test
provides a complete analysis of both leaf and petiole nutrient levels, helping growers and consultants stay ahead of issues during critical stages of crop development. Whether you’re growing in open fields, tunnels, or organic systems, this test provides clear data to guide mid-season fertility decisions.
What’s Included in Your Analysis
Leaf Tissue Nutrients (% of Dry Matter)
Nitrogen (N)
Phosphorus (P)
Petiole Nutrients (Sap Flow Indicators)
Nitrate (NO₃)
Phosphate (PO₄)
Macronutrients & Secondary Elements
Potassium (K)
Calcium (Ca)
Magnesium (Mg)
Sodium (Na)
Sulfur (S) (included twice for extra emphasis)
Micronutrients & Trace Elements
Zinc (Zn)
Iron (Fe)
Manganese (Mn)
Copper (Cu)
Boron (B)
Molybdenum (Mo)
Your Report Includes:
Clear Nutrient Interpretations
– Visual flags for deficiencies, excesses, and balance
Crop-Specific Recommendations
– Tailored to the needs of brassicas
Complimentary Consulting Support
– Basic explanation of results included with every test
Need deeper insight for multi-acre vegetable systems or long-term fertility planning? Extended consulting services are available by request.
Sample Requirements
Minimum: 25–35 petioles and leaves (combined), depending on plant size
Sample Handling: Submit clean, fresh tissue in a labeled, breathable paper bag
Turnaround Time: ▪️ Petioles
– 1 business day ▪️ Leaves
– 2 business days
Recommended For:
Commercial broccoli, cauliflower, and cabbage growers
Organic vegetable farms and CSA managers
High-tunnel and field-scale kale or collard
operations
Crop consultants managing multiple sites or seasons
Growers using split nitrogen, boron supplementation, or foliar feeds
Order the Brassica Plant Tissue Test Today
Brassicas don’t forgive poor nutrition. Get the data you need to optimize yield, prevent hidden deficiencies, and grow consistent, high-quality crops.
Hi there! Have some questions about our company? Find the answers below.
What are your business hours?
Our office is open Monday thru Friday from 8 am to 5 pm. We do close for major holidays, so we recommend ordering your testing and sending your sample early if a holiday is coming up. You can always reach us by email. Just send us a message at info@tpslab.com
When will I get my results?
We understand that you need your results as soon as possible. That is why we make sure to begin processing your samples as soon as they arrive at our laboratory. When the results are ready, we will email them to the email address you provided on your submittal form. The list below will give you an idea of our usual turnaround times.
Soil Tests: 5-7 Business days
Water Tests: 5 - 7 Business days
Plants Tests: 24 - 48 Hours
Compost Tests: 7 - 14 Business days
Fertilizer Tests: 3 - 5 Business days
Heavy Metals Test: 7 - 14 Business days
We offer a rush option for an additional 50% of the testing cost, but we would encourage you to give yourself time to test before you get to a point where a rush is needed.
