Nitrogen deficiency-Strawberries

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Nutrients

Strawberries - Chlorosis

Symptoms
Symptoms begin at the mature leaves. At first leaves turn pale green. With progressing deficiency they turn uniformly yellow and stay smaller. As leaves age their margins and stalks turn reddish and leaf blades become red.

Reasons
Nitrogen deficiency. Sulfur and molybdenum deficiencies show similar symptoms.

Strawberries - Chlorosis

Reasons
Nitrogen deficiency. Sulfur and molybdenum deficiencies show similar symptoms.

Strawberries - Chlorosis

Symptoms
Symptoms begin at the mature leaves. At first leaves turn pale green. With progressing deficiency they turn uniformly yellow and become smaller. As leaves age their margins and stalks turn reddish and leaf blades become red.

Reasons
Nitrogen deficiency. Yellowing occurs also with sulfur or molybdenum deficiency.

Strawberries - Chlorosis

Reasons
Nitrogen deficiency. Yellowing occurs also with sulphur or molybdenum deficiency.

Strawberries - Chlorosis

Symptoms
Symptoms begin at the mature leaves. At first the lower leaves get pale green. With progressing deficiency they turn uniformly yellow to reddish. Necrotic blotches occur on the leaf blades. Growth is severely stunted.

Reasons
Nitrogen deficiency. Yellowing occurs also with sulphur or molybdenum deficiency, but starts on young tissue in this case.

Nitrogen deficiency made worse by

Low or high pH soils
Sandy or light soils (leaching)
Low organic matter
Drought conditions
High rainfall (leaching) or heavy irrigation
Addition or high levels of non-decomposed organic matter/manure (eg straw)
Fast growing crops

Nitrogen is important for

Improved crop development
Increased yield
Improved fruit quality

Yara recommended fertilizers for Nitrogen

YaraBela® CAN-27™

Strawberry (field grown): Apply 60-200 lbs N/acre in split applications according to variety, yield potential, and soil test. Apply 50% prior to pegging, with the remainder side dressed. For perennial plantings, apply 20-30 lbs N/acre post-harvest. Utilizing YaraBela® CAN 27 for part or all of the nitrogen needs supplies the crop with fast acting nitrate nitrogen. Consult with your agronomist for local recommendations.

YaraMila® 15-15-15

Strawberry (field grown): Apply 400-1000 lbs YaraMila® 15-15-15/acre in split applications according to variety, yield potential, and soil test. Apply 50% prior to pegging, with the remainder side dressed. For perennial plantings, apply 20-30 lbs N/acre post harvest. Utilizing YaraMila® 15-15-15 provides a balanced nitrogen approach by supplying both nitrate and ammoniacal nitrogen along with fully available Phosphate, soluble Potassium and Sulfur in a homogenous prill. Consult with your agronomist for local recommendations.

YaraMila® 21-7-14

Strawberry (field grown): Apply 285-950 lbs YaraMila® 21-7-14/acre in split applications according to variety, yield potential, and soil test. Apply 50% prior to pegging, with the remainder side dressed. For perennial plantings, apply 100-150 lbs YaraMila® 21-7-14/acre post harvest. Utilizing YaraMila® 21-7-14 provides a balanced nitrogen approach by supplying both nitrate and ammoniacal nitrogen along with fully available Phosphate, soluble Potassium and Sulfur in a homogenous prill. Consult with your agronomist for local recommendations.

YaraLiva® CALCINIT™15.5-0-0

Strawberry (field grown): Apply 375-1200 lbs YaraLiva® Calcinit® 15.5-0-0 19 Ca/acre in split applications according to variety, yield potential, and soil test. Apply 50% prior to pegging, with the remainder side dressed via fertigation. For perennial plantings, apply 125-250 lbs Calcinit®/acre post-harvest. Utilizing YaraLiva® Calcinit® for part or all of the nitrogen needs supplies the crop with fast acting nitrate nitrogen and will provide soluble calcium in proper ratio with nitrate nitrogen. Calcium is important for producing firm berries with good shelf life and helps with disease resistance. Consult with your agronomist for local recommendations.

Read more about YaraLiva® CALCINIT™15.5-0-0

YaraLiva® CAN-17™

Strawberry (field grown): Apply up to 350-1100 lbs YaraLiva® CAN-17/acre in split applications according to variety, yield potential, and soil test. Apply 50% prior to pegging, with the remainder side dressed via fertigation. For perennial plantings, apply 125-250 lbs CAN-17®/acre post-harvest. Utilizing YaraLiva® CAN-17 for part or all of the nitrogen needs supplies the crop with fast acting nitrate nitrogen and since CAN-17 contains 8.8% Calcium it will provide soluble calcium in proper ratio with nitrate nitrogen. Calcium is important for producing firm berries with good shelf life and helps with disease resistance. Consult with your agronomist for local recommendations.

YaraLiva® CN-9®

Strawberry (field grown): Apply up to 650-2200 lbs YaraLiva® CN-9® 9-0-0 11 Ca/acre in split applications according to variety, yield potential, and soil test. Apply 50% prior to pegging, with the remainder side dressed via fertigation. For perennial plantings, apply 125-250 lbs CN-9®/acre post harvest. Utilizing YaraLiva® CN-9® for part or all of the nitrogen needs supplies the crop with fast acting nitrate nitrogen and will provide soluble calcium in proper ratio with nitrate nitrogen. Calcium is important for producing firm berries with good shelf life and helps with disease resistance. Consult with your agronomist for local recommendations.

YaraLiva® TROPICOTE®

Strawberry (field grown): Apply 375-1200 lbs YaraLiva® Tropicote® 15.5-0-0 19 Ca/acre in split applications according to variety, yield potential, and soil test. Apply 50% prior to pegging, with the remainder side dressed. For perennial plantings, apply 125-250 lbs Tropicote®/acre post harvest. Utilizing YaraLiva® Tropicote® for part or all of the nitrogen needs supplies the crop with fast acting nitrate nitrogen and will provide soluble calcium in proper ratio with nitrate nitrogen. Calcium is important for producing firm berries with good shelf life and helps with disease resistance. Consult with your agronomist for local recommendations.

YaraVera® AMIDAS® 40-0-0

Read more about YaraVera® AMIDAS® 40-0-0

NUTRA-PHOS Zn-K PLUS

Strawberry (field grown): 5 to 10 lb. per acre per application. Application after fruit starts to color may leave a visible residue. Apply aerial applications in at least 5 gallons/acre and ground applications in at least 10 gallons/acre; however, when total application gallonage is 25 gallons per acre or less, DO NOT mix more than 1 lb. of this product per gallon of water.