Tissue Services

Nitrate N Packages (Typically Sugarbeets and Potatoes)

T1                                                                                                    $20
NO3N

T2                                                                                                    $25
NO3N, P

T4                                                                                                    $37
NO3N, P, K, S

T6                                                                                                    $56
NO3N, P, K, S, Ca, Mg, B, Cu, Fe, Mn, Zn

Total N Packages (Other plants)

T7                                                                                                     $24
TKN

T8                                                                                                     $29
TKN, P

T10                                                                                                   $41
TKN, P, K, S

T12                                                                                                   $60
TKN, P, K, S, Ca, Mg, B, Cu, Fe, Mn, Zn

TI Individual Tests                                                                           $20
Add to existing package                                                                    $12

Consult with the lab or check out our website to determine which parts of the plant to sample. Please keep tissues sample cool in paper bags and bring them to the lab shortly after sampling.

Tissue sample guide Matrix

For use: Find the crop you are sampling. The stage of the crop determines which Plant Part to Sample the Quantity of those parts necessary to perform analyses.

Crop

Stage

Quantity

Plant Part to Sample

Alfalfa

Prior to Flowering

12

Tops (6" new growth)

Apple

Summer

50

Mature leaves from new growth

Asparagus

Mid Summer

12

Top 15 cm fronds

Asparagus

Late Summer

15

Top 50 cm fronds

Barley

Prior to Jointing

50

Whole plant cut 1" above soil

Barley

Up to Heading

50

Plants (Top two or three leaves)

Barley

Flag Leaf

50

Flagleafs

Bean, Kidney

All Stages

25

Most recently matured trifoliate leaves

Bean, Navy

All Stages

25

Most recently matured trifoliate leaves

Bean, Pinto

All Stages

25

Most recently matured trifoliate leaves

Blueberry

All Stages

75

Mature leaves from new growth

Broccoli

All Stages

15

Mature leaves from new growth

Brussel Sprouts

All Stages

15

Mature leaves from new growth

Cabbage

Up to 6 Weeks

20

Whole tops cut 1" above soil

Cabbage

2 to 3 Months

15

Wrapper Leaves

Cabbage

Head 3/4 Mature

15

Wrapper Leaves

Cabbage

Mature

20

Midribs from wrapper leaves

Canola

All Stages

50

Mature leaves without petioles

Cantaloupe

Young Vines

15

Most recently matured leaf and petiole

Cantaloupe

Small Fruit

15

Unfurled leaves (5th leaf from tip)

Cantaloupe

Up to Harvest

15

Unfurled leaves (5th leaf from tip)

Carrot

Young

20

Mature leaves from new growth

Carrot

Mature

20

Leaves (oldest leaves)

Cauliflower

Buttoning

15

Most recently matured leaf and petiole

Cauliflower

Heading

15

Mature leaves from new growth

Celery

6 Weeks after Transplant

15

Petioles from most recent fully developed leaves

Celery

Up to 6 Weeks

15

Mature leaves from new growth

Celery

Up to Mature

15

Mature leaves from new growth

Clover

All Stages

20

Top 4-6 inches (leaves and stems)

Corn, Grain

Up to 4"

15

Whole tops cut 1" above soil

Corn, Grain

Up to 12"

15

Whole tops cut 1" above soil

Corn, Grain

Up to Tasseling

12

Leaves below the whorl

Corn, Grain

Initial Silk

12

Leaves from base of ear

Corn, Grain

Filling

12

Unfurled leaves (5th leaf from tip)

Corn, Grain

Maturity

12

Leaves from base of ear

Cranberry

All Stages

75

Mature leaves from new growth

Cucumber

Before Bloom

15

Most recently matured leaf and petiole

Cucumber

Small Fruit

15

Leaf blades (5th leaf from tip)

Cucumber

Up to Harvest

15

Leaf blades (5th leaf from tip)

Bean, Faba

All Stages

50

Leaf blades without petioles from uppermost mature leaves

Flax

Up to 12"

25

Whole tops cut 1" above soil

Flax

Up to Heading

50

Three or Four uppermost leaves

Forage, Brome

All Stages

25

Tops cut 2.5" above soil line

Forage, Grass

All Stages

25

Tops cut 2.5" above soil line

Forage, Mixed

Prior to Jointing

25

Tops cut 2.5" above soil line

Forage, Mixed

Up to Flowering

50

Flagleafs

Garlic

Pre Bulbing

15

Most recent fully developed (green portion only)

Garlic

Bulbing

15

Most recent fully developed (green portion only)

Garlic

Post Bulbing

15

Most recent fully developed (green portion only)

Ginseng

Mid Season

35

Youngest mature leaves

Grape

All Stages

50

Leaf petioles opposite basal flower clusters

Grass

All Stages

25

Tops cut 2.5" above soil line

Hemp

All Stages

10

Stems (10 cm base section plus 10 cm section 1 m from tip)

Lentils

All Stages

50

Uppermost mature leaves

Lettuce, Iceberg

Up to Heading

15

Leaves from mature heads

Lettuce, Iceberg

Mature

15

Wrapper Leaves

Lettuce, Romaine

Up to 8 Leaf

15

Undamaged outer/wrapper leaves

Lettuce, Romaine

Mature

15

Undamaged outer/wrapper leaves

Melon

All Stages

15

Unfurled leaves (5th leaf from tip)

Mint

All Stages

15

Mature leaves from new growth

Mustard

All Stages

20

Blades from fully expanded leaves

Oats

Prior to Jointing

50

Whole plant cut 1" above soil

Oats

Up to Heading

50

Plants (Top two or three leaves)

Oats

Flag Leaf

50

Flagleafs

Onion

Young Bulb

15

Whole tops (green portion only)

Onion

Maturing Bulb

15

Whole tops (green portion only)

Pea

All Stages

60

Most recent fully developed leaflets

Pepper

Half Mature Fruit

30

Mature Leaves from new growth

Pepper

Mature Plant

30

Mature Leaves from new growth

Potato

All Stages

50

Petioles from most recent fully developed leaves

Pumpkin

5 Weeks

10

Most recently matured leaf and petiole

Pumpkin

8 Weeks

10

Most recently matured leaf and petiole

Pumpkin

Mid Season

20

Mature leaves from new growth

Raspberry

All Stages

50

Mature leaves from midsection of primocanes

Rye

Prior to Jointing

25

Whole plant cut 1" above soil

Rye

Up to Heading

50

Top two or three leaves

Rye

Flag Leaf

50

Flagleafs

Sorghum

23-37 Days

25

Whole tops

Sorghum

37-56 Days

25

Mature leaves from new growth

Sorghum

Bloom

25

Leaves, third leaf below head

Sorghum

Grain Dough

25

Leaves, third leaf below head

Soybean

Early Growth

25

Most recently matured trifoliate leaves

Soybean

Early Flowering

25

Most recently matured trifoliate leaves

Soybean

Up to Pod Set

25

Mature leaves from new growth

Soybean

Pod Filling

25

Mature leaves from new growth

Squash

All Stages

12

Leaf blades from most recent fully developed leaves

Squash

Early Fruit

10

Most recently matured leaf and petiole

Strawberry

At Flowering

10

Most recently matured leaves only

Strawberry

End of Season

10

Most recently matured leaf and petiole

Strawberry

Initial Flower

10

Most recently matured leaf and petiole

Strawberry

Initial Harvest

10

Most recently matured leaf and petiole

Strawberry

Mid Season

10

Most recently matured leaf and petiole

Strawberry

Transplants

10

Most recently matured leaf and petiole

Sugarbeet

All Stages

25

Recently matured leaves

Sugarbeet

All Stages

25

Petioles from most recent fully developed leaves

Sunflower

All Stages

25

Mature leaves from new growth

Corn, Sweet

30-50 cm tall

12

Unfurled leaves (5th leaf from tip)

Corn, Sweet

50-70 cm tall

12

Unfurled leaves (5th leaf from tip)

Corn, Sweet

6 Leaf

25

Whole tops

Corn, Sweet

End of Silk

12

Unfurled leaves (5th leaf from tip)

Corn, Sweet

Full Tassel

12

Unfurled leaves (5th leaf from tip)

Corn, Sweet

Tassel Start

12

Unfurled leaves (5th leaf from tip)

Sweet Potato

Early Vining

25

Most recently matured leaf and petiole

Sweet Potato

Mid Season

25

Most recently matured leaf and petiole

Sweet Potato

Root Enlargement

25

Most recently matured leaf and petiole

Sweet Potato

First Half of Growing Season

20

Most recently matured leaves

Sweet Potato

Harvest

20

Most recently matured leaf and petiole

Timothy

Prior to Jointing

25

Whole plant cut 1" above soil

Timothy

Up to Heading

50

Top two or three leaves

Timothy

Flag Leaf

50

Flagleafs

Tomato, Field

Mid Bloom

20

Compound leaves adjacent top inflorescences

Tomato, Greenhouse

Mature

30

Compound leaves from new growth

Tomato, Indeterminate

5 Leaf

30

Most recently mature leaf and petiole

Tomato, Indeterminate

Early Fruit

30

Most recently mature leaf and petiole

Tomato, Indeterminate

First Flower

30

Most recently mature leaf and petiole

Tomato, Indeterminate

First Fruit

30

Most recently mature leaf and petiole

Tomato, Indeterminate

Harvest

30

Most recently mature leaf and petiole

Tomato, Trellis

Fifth Cluster

15

Leaf petioles opposite or below top flower cluster

Tomato, Trellis

First Cluster

15

Leaf petioles opposite or below top flower cluster

Tomato, Trellis

Fourth Cluster

15

Leaf petioles opposite or below top flower cluster

Tomato, Trellis

Second Cluster

15

Leaf petioles opposite or below top flower cluster

Tomato, Trellis

Sixth Cluster

15

Leaf petioles opposite or below top flower cluster

Tomato, Trellis

Third Cluster

15

Leaf petioles opposite or below top flower cluster

Tomato, Trust

Production

30

Mature leaves from new growth

Tree, Mayday

All Stages

50

Mature leaves from new growth

Triticale

Prior to Jointing

25

Whole plant cut 1" above soil

Triticale

Up to Heading

50

Top two or three leaves

Triticale

Flag Leaf

50

Flagleafs

Watermelon

Flower Start

12

Unfurled leaves

Watermelon

Small Fruit

15

Mature leaves from new growth

Watermelon

Older Fruit

15

Unfurled leaves (5th leaf from tip)

Wheat, Durum

Prior to Jointing

50

Whole plant cut 1" above soil

Wheat, Durum

Up to Heading

50

Plants (Top two or three leaves)

Wheat, Durum

Flag Leaf

50

Flagleafs

Wheat, Spring

Prior to Jointing

50

Whole plant cut 1" above soil

Wheat, Spring

Up to Heading

50

Plants (Top two or three leaves)

Wheat, Spring

Flag Leaf

50

Flagleafs

Wheat, Winter

Prior to Jointing

50

Whole plant cut 1" above soil

Wheat, Winter

Up to Heading

50

Plants (Top two or three leaves)

Wheat, Winter

Flag Leaf

50

Flagleafs

Zucchini

All Stages

15

Mature leaves from new growth

 

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