“Improving Growth with Science and Technology Since 1976”
Plant Analysis

BASIC TEST

Includes:

Nitrogen, Phosphorus, Potassium, Magnesium, Calcium, Sulfur, Boron, Zinc, Manganese, Iron & Copper

Example Report

INDIVIDUAL ANALYSIS:

  • Any Element Above, Sodium, Aluminum, and Molybdenum
  • Nitrate Nitrogen
  • Chloride
  • Silicon
  • Heavy Metals-See Heavy Metal Section

PLANT/SOIL COMBINATION ANALYSIS:

Analyzing soil nutrient concentration along side a plant tissue sample is an essential tool for making accurate fertilizer application recommendations.

  • Basic Plant Test PLUS Basic Soil Test #4.

Example Report

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Choose your lab for sample submittal forms:


Vegetable Leaf Analysis

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Don’t overlook the importance of leaf analysis for vegetables. Plant tissue analysis is the most accurate way to monitor plant nutrient uptake. Knowing the effectiveness of your current program can allow fine tuning for maximum results.

 

 

 Special Programs:

We have several programs specifically designed for various industries. They include (but are not limited to):

  • Citrus Nutrient Program
  • Peach Nutrient Program
  • Pecan Nutrient Program
  • Pine Foliage Analysis
  • Hardwood Foliage Analysis

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How To Take A Plant Sample…

Follow these basic guidelines to ensure a good plant sample is taken and received by the lab. Pull portion of plant needed using the chart below and place leaves in a Plant Sample bag or paper bag. Do not use a plastic bag. Wash contaminated samples gently with water if needed. When possible, collect a soil sample from the same location the plant sample was taken. Fill out the information sheet as completely as possible, including crop, stage of growth, and sample number. Be sure the sample numbers of the information sheet correspond with the numbers on the sample bags. The following chart shows field crops and the proper part of each plant to sample and send in.

 


Plant Sampling Chart for Field Crops

Field and Forage Crops

CROP GROWTH STAGE PLANT PART TO  SAMPLE QUANTITY
Alfalfa At or prior 1/10 bloom stage (5%) Entire above ground portion or top 6″ 45-55
Bermuda & Bahia 4   to 5 week old plants Upper   1/2 of plant 2   cups
Cereal Grains-Wheat, Oats, Rye Seedling to tillering (F1-F3) All the above ground portion 50-75
Jointing to flag leaf -(F4-F10) Flag Leaves- 1st 4 blades 1/3 way down plt 30-40
Flag leaf to Maturity Flag Leaves 30-40
Clover Prior to bloom Mature Leaf Blades 1/3 of way down plant 50-60
Canola Seeding to Vegetative All the above ground portion 20-30
Prior to flowering Fully developed leaves at the top of the plant 20-30
Corn Seeding Stage-(V1-V6) All the above ground portion 25-30
Prior to tasselling-(V7-VT) The fully developed leaf below whorl 15-20
Tasseling to silking-(above R1) The leaf at the ear node( below of above) 15-20
Cotton Seedling (up to 1ft) All the above ground portion 30-35
Prior to or at 1st bloom /Pin head Square Youngest fully mature leaves 30-35
Cotton Petiole Wk1 (45-50days)-Wk 9 4th leaf and petiole form top of plant 20-25
Hay, Forage, or Pasture Before seed head emergence All the above ground portion 50-60
Milo, Grain Sorghum Seedling stage All the above ground portion
Prior to flowering – bloom stage 2nd leaf below head 20-25
Peanuts Seedling stage- All the above ground portion 20-30
Vegetative to Pegging Youngest fully mature leaves 20-30
Rice Seedling stage All the above ground portion 15-20
Mid-tillering (V6-V13) Y-leaf or Flag Leaf 20-30
Panicle initiation (R0-R5) Y-leaf   or Flag Leaf 20-30
Ryegrass 4 to 5 week old plants whole tops 2 cups
Soybeans Prior to flowering (V1-V6) Fully developed leafs at the top of plant 20-30
Flowering-Pod fill (R1-R5) Fully developed leafs at the top of plant 30-35
Sugar Beets Mid Season Fully mature leaves midway b/w younger center leaves and the oldest leaf whorl on   the outside 30-35
Sugar Cane Vegetative to 4 months old 4th fully developed leaf from the top 25-30
Tobacco Vegetative – prior to bloom Most Recent fully developed leaf 5-8

 

Bedding Plants

Fruit, Nut and Berry Crops

CROP GROWTH STAGE PLANT PART TO SAMPLE QUANTITY
Pansy, snapdragons, petunia, marigold, impatiens New   growth Mature   leaf from new growth 15-20
Apples Mid   Season (4-8 wk after bloom) Youngest   fully mature leaves near base of current year’s growth 40-50
Apricots Mid Season( 4-8wks after bloom) Youngest   fully mature leaves near base of current year’s growth 40-50
Blackberry & Raspberry Mid Season( 2-8wks after bloom) Youngest   fully mature leaves from mid section on non-fruiting 20-30
Blueberry Mid Season (4-6 wk after bloom) Youngest fully mature leaves, Non fruiting branches 30-40
Post Harvest Mature leaves on current growth 30-40
Cherry Mid Season (4-8 wk after bloom) Youngest fully mature leaves on non bearing sput 20-30
Citrus (Oranges, Lemons, and Limes) Growing season 5-7 months Youngest fully mature leaf – spring cycle growth 20-30
Between growth flushes Spring Cycle leaves from non fruiting terminals 20-30
Fig Mid summer Mature leaves   from current year growth 10-15
Grape Vegetative Youngest fully mature leaf 40-50
Fuiting Leaf opposite basal fruiting cluster 15-20
Grape Petioles Full Bloom Petiole opposite basal flower
Peaches Mid Season (4-8 wk after bloom) Mature leaves near base of current year’s growth 20-30
Pecans Mid Season (6-8 wk after bloom) Middle   leaflet pairs from the terminal shoots 30-40
Plums Mid Season (6-8 wk after bloom) Youngest fully mature leaves near base of current year’s growth 40-50
Strawberry, Plastic Transplant, flower, mid –  season, harvest Most   recently mature fully expanded leaf 15-20
Strawberry Vegetative All the above ground portion 30-40
Fruiting Stage Youngest fully   mature tri-foliate leaves 20-25
Walnuts Mid   Season (6-8 wk after bloom) Middle   leaflet pairs from the terminal shoots 25-30

 

Vegetable Crops

CROP GROWTH STAGE PLANT PART TO   SAMPLE QUANTITY
Beans Seedling stage All of the above ground portion 20-30
Prior to or during initial Flowering Youngest fully mature leaves at the top of plant 20-30
Cucumbers & melons Vegetative All of the above ground portion 20-25
Before fruit set mature leave near base of the main stem 20-25
Carrots Seedling All of the above ground portion 20-25
Vegetative 1st mature leaves from center of whorl 20-25
Head Crops (Cabbage, Cauliflower Broccoli) Before heading 1st   mature leaves from center of whorl 20-25
Eggplant Prior to full bloom Youngest fully mature leaf on the main stem 20-25
Leaf Crops ( collards, turnips, kale, mustard) mid growth Youngest   mature leaf 30-40
Onions, garlic, shallots vegetative All of the above ground portion 20-25
prior to bulb enlargement Center mature leaves 20-25
Peas Seedling stage All of the above ground portion 20-30
Prior to or during initial Flowering Youngest fully mature leaves at the top of plant 20-30
Peppers Vegetative to fruit set Youngest fully mature leaves at the top of plant 20-30
Potato Seedling stage All of the above ground portion 20-30
Before or during full bloom 3re to 6th leaf   from the growing tip 20-30
Pumpkin, Squash Vegetative   – fruit set Youngest mature leaf 20-25
Radish Seedling All of the above ground portion 20-25
Vegetative 1st mature leaves from center of whorl 20-25
Sweet Corn Seeding   Stage-(V1-V6) All of the above ground portion 25-30
Prior to tasselling-(V7-VT) The fully developed leaf below whorl 15-20
Tasseling to silking-(above R1) The leaf at the   ear node (below of above) 15-20
Tomato Seedling Stages All of the above ground portion 20-25
Prior or at fruiting 3rd or 4th leaf   from growing tip 20-25
Tomato (Greenhouse) Early Flowering Leaf tip 20-25
1st to 6th cluster Terminal leaf/leaflet at the most recent fruiting cluster 20-25

 

Ornamentals, Flowers and Trees

CROP GROWTH STAGE PLANT PART TO   SAMPLE QUANTITY
Flowering Annuals Vegetative to Early bloom Top leaves on the flowering stem 15-20
Perennials Current year’s vegetative growth Youngest mature leaves 15-20
Ornamental Trees & Shrubs Current year’s vegetative growth Fully mature leaves 15-20
Roses During flowering Upper leaves on the flowering stem 15-20
Poinsettias Before or during early flowering Most recently mature fully expanded leaf 15-20

 

Conifers

CROP GROWTH STAGE PLANT PART TO SAMPLE QUANTITY
Pines Dormant ( Dec-Feb) Current   years 1st flush; primary lateral branch in the upper 1/3 of live crown;   collect entire fascicles with the bunch sheath. 100   fascicles
Cypress Mid-Season Terminal   cutting (2″) 50
Spruce Mid-Season Terminal cutting   (2″) 50

 

Turf

CROP GROWTH STAGE PLANT PART TO  SAMPLE QUANTITY
Turf During growing season Leaf blades;*** avoid soil contamination 2 cups

 

Memberships & Affiliations:

  • North American Proficiency Testing Program (NAPT)
  • Soil & Plant Analysis Council
  • Georgia Plant Food Association
  • Georgia Fruit & Vegetable Association