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Cucumber Fertilizer 8-16-36 | Chelated Micronutrients | Hydroponics, Soil & Foliar Application

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Weight: 1 Pound

Cucumber Fertilizer 8-16-36 | Premium Formula | Greenway Biotech®

Cucumber Fertilizer 8-16-36

Maximize your cucumber yields with our scientifically formulated Cucumber Fertilizer 8-16-36. This premium water-soluble blend delivers the perfect balance of nutrients for cucumbers, melons, squash, and all vine crops. With enhanced phosphorus for flowering and very high potassium for fruit development, our fertilizer ensures vigorous growth, abundant fruiting, and superior quality in every harvest.

🥒 Quick Access

NPK Formula 8-16-36

The Perfect Balance for Heavy-Fruiting Vine Crops

8%
N
Nitrogen
Controlled nitrogen promotes healthy vine growth without excessive foliage that reduces fruit production
16%
P
Phosphorus
Enhanced phosphorus stimulates abundant flowering and strong root systems for maximum fruit set
36%
K
Potassium
Very high potassium ensures proper fruit development, crisp texture, and extended storage life
🔬

Complete Micronutrients

Chelated Fe, Mn, Zn, Cu plus B & Mo prevent deficiencies and ensure healthy fruit development

💧

100% Water Soluble

Instantly dissolves for soil drench, foliar spray, or hydroponic systems with no clogging

KEY FEATURES & BENEFITS
  • Optimal 8-16-36 NPK: Precisely balanced for cucurbit crops with extra P for flowering and high K for fruit quality
  • Complete Micronutrient Package: Chelated iron, zinc, manganese, copper, plus boron and molybdenum
  • Heavy Metal Free: Tested and certified for safe, clean produce
  • Versatile Application: Perfect for soil, hydroponic, and foliar methods
  • Superior Fruit Quality: Enhances size, shape, and storage life of cucumbers
  • Professional Grade: Used by commercial cucumber growers worldwide
  • Instant Availability: 100% water-soluble for immediate uptake
  • pH Stable: Maintains optimal pH for nutrient absorption
SCIENCE BEHIND THE FORMULA

Understanding why our 8-16-36 formula works so well for cucumbers and vine crops requires looking at the unique nutritional demands throughout their growth cycle.

The Role of Each Nutrient

Controlled Nitrogen (8%): Cucumbers need sufficient nitrogen for vine development, but too much creates problems. Excessive nitrogen leads to:

  • Excessive vine growth at the expense of fruit production
  • Delayed flowering and reduced fruit set
  • Increased susceptibility to powdery mildew and bacterial wilt
  • Poor fruit quality with bitter compounds

Our 8% nitrogen content provides optimal growth without these negative effects.

Enhanced Phosphorus (16%): Phosphorus is critical for cucumbers because it:

  • Stimulates early root development for drought tolerance
  • Promotes abundant flower production
  • Improves fruit set percentage
  • Enhances energy transfer during rapid fruit development

Very High Potassium (36%): Cucumbers are extremely heavy potassium feeders. This essential nutrient:

  • Regulates water uptake and prevents bitter fruit
  • Activates enzymes for sugar transport to developing fruits
  • Strengthens cell walls for crisp texture
  • Improves disease resistance, especially to fungal infections
  • Extends post-harvest shelf life
  • Reduces malformed and hollow fruits

Why Cucumbers Need High Potassium

🥒
Perfect Shape
Prevents curved, bottlenecked, or misshapen fruits for market-quality cucumbers
💧
No Bitterness
Regulates water balance to prevent bitter compounds from forming in fruits
🛡️
Disease Resistance
Strengthens plants against powdery mildew, downy mildew, and bacterial diseases
📦
Storage Quality
Maintains firmness and prevents soft spots during storage and shipping
🌱
Continuous Production
Supports multiple harvests by maintaining plant vigor throughout the season
🍃
Heat Tolerance
Helps plants cope with temperature stress during hot summer months

Micronutrient Synergy

Our formula includes carefully balanced micronutrients that work synergistically with the NPK ratio:

Chelated Iron (Fe) - 0.10%
Essential for chlorophyll synthesis and photosynthesis. Prevents yellowing between leaf veins that reduces photosynthetic capacity during heavy fruit production.
Chelated Manganese (Mn) - 0.05%
Activates enzymes involved in photosynthesis and nitrogen metabolism. Critical for disease resistance, especially against powdery mildew.
Chelated Zinc (Zn) - 0.05%
Required for auxin production and fruit development. Zinc deficiency causes stunted growth and small, misshapen fruits.
Chelated Copper (Cu) - 0.05%
Important for lignin synthesis and plant strength. Helps prevent lodging of heavy fruit-laden vines and improves disease resistance.
Boron (B) - 0.02%
Critical for flower development and fruit set. Boron deficiency causes flower drop and cracked, misshapen fruits in cucumbers.
Molybdenum (Mo) - 0.0005%
Essential for nitrogen metabolism and enzyme function. Though needed in tiny amounts, deficiency causes yellowing and reduced yields.
SUITABLE FOR ALL CUCURBIT CROPS

Our formula is optimized for a wide variety of vine crops:

Cucumber Types:
  • Slicing Cucumbers
  • Pickling Cucumbers
  • English/Seedless
  • Armenian Cucumbers
  • Asian Varieties
Melon Family:
  • Cantaloupe
  • Honeydew
  • Watermelon
  • Specialty Melons
  • Galia Melons
Squash & Others:
  • Summer Squash
  • Zucchini
  • Winter Squash
  • Pumpkins
  • Gourds
DERIVED FROM
APPLICATION RATES & DIRECTIONS

Our Cucumber Fertilizer can be applied through soil, foliar, or hydroponic methods for maximum flexibility.

🌱 Soil Application

Application Method Rate Frequency Notes
Per Plant 3-5 grams (1/2-1 tsp) Every 2-3 weeks Apply in ring 6" from stem
Per 100 sq ft 0.75-1.5 lbs Every 2-3 weeks Side dress along rows
Drip Irrigation 1-2 lbs/100 gal 2x per week During fruiting stage
Per Acre 200-400 lbs Split applications Based on plant density

🍃 Foliar Application

Growth Stage Concentration Frequency Best Time
Vegetative 75g per gallon Weekly Early morning
Early Fruiting 100g per gallon Every 5-7 days Evening
Heavy Fruiting 150g per gallon 2x per week Cool conditions

💧 Hydroponic Application (per 100 gallons)

Growth Stage Fertilizer Amount Cal-Mag Plus Target pH Target EC/PPM
Seedling 0.25 lbs 250-500 ml 6.5-6.8 800-1000 PPM
Vegetative 0.5 lbs 500-1000 ml 6.2-6.5 1200-1500 PPM
Flowering/Fruiting 0.75 lbs 1000-1500 ml 5.8-6.2 1800-2200 PPM

Optimal Feeding Through Growth Stages

🌱
Seedling
Week 0-2
Quarter strength
+ Cal-Mag 2.5ml/gal
🌿
Vegetative
Week 2-6
Half strength
+ Cal-Mag 5-10ml/gal
🌸
Flowering
Week 6-8
Full strength
+ Cal-Mag 10-15ml/gal
🥒
Fruiting
Week 8+
Maximum strength
+ Cal-Mag 15ml/gal
Mixing Instructions:
  1. Fill tank with water to 80% capacity
  2. Add Cal-Mag Plus first (if using)
  3. Dissolve fertilizer completely while agitating
  4. Adjust pH after all nutrients added
  5. Top off to final volume
📊 Plant Density Note: Our hydroponic calculations assume approximately 0.8 plants per gallon of reservoir capacity for cucumber crops. For example:
  • 10-gallon system = ~8 plants
  • 25-gallon system = ~20 plants
  • 50-gallon system = ~40 plants
  • 100-gallon system = ~80 plants
Adjust based on variety and training method - greenhouse cucumbers require more space than field varieties.
CUCUMBER FERTILIZER CALCULATOR

Cucumber Fertilizer 8-16-36 Calculator

Calculate precise amounts for your cucumber production.

🌱 Garden Application Calculator

📋 For outdoor gardens and raised beds

🥒 Individual Plant Calculator

📋 Calculate for specific number of plants

💧 Hydroponic System Calculator

📋 For NFT, DWC, Dutch bucket systems

🍃 Foliar Spray Calculator

📋 For foliar feeding applications

Powered by Greenway Biotech, Inc. — Premium fertilizers since 1989

COMPLETE MICRONUTRIENT PROFILE

Our formula includes all essential micronutrients in optimal ratios for cucurbit crops:

Micronutrient Form Function in Cucumbers
Iron (Fe) Chelated EDTA Chlorophyll production, prevents yellowing
Manganese (Mn) Chelated EDTA Disease resistance, photosynthesis
Zinc (Zn) Chelated EDTA Fruit development, growth hormones
Copper (Cu) Chelated EDTA Plant strength, disease resistance
Boron (B) Boric Acid Flower development, fruit set
Molybdenum (Mo) Sodium Molybdate Nitrogen metabolism, enzyme function
GROW WITH CONFIDENCE

Below are important details on quality, returns, sustainability, and charitable efforts that set our product apart.

Product Quality Guaranteed
  • All our products are manufactured in California, USA
  • Tested by independent third-party laboratories for quality assurance
  • Registered with the California Department of Food and Agriculture (CDFA)
  • Rigorously tested to ensure products are free from heavy metals
Hassle-Free Return Policy

If you're not completely satisfied, we offer a 90-day money-back guarantee. Simply return the unused portion in its original packaging, and we'll process a full refund.

Environmental Responsibility

We're committed to sustainable practices, including:

  • Biodegradable packaging materials
  • Precise nutrient formulation to reduce runoff
  • Support for eco-friendly farming methods
  • Ongoing research into organic solutions
Charitable Contributions

1% of all profits go to the Greenway Foundation, focused on improving educational opportunities for children. Learn more at greenway.foundation.

DOCUMENTS
FREQUENTLY ASKED QUESTIONS

Click on each question to see the answer.

Why is 8-16-36 the ideal ratio for cucumbers?

The 8-16-36 ratio is specifically formulated for the unique needs of cucurbit crops:

  • 8% Nitrogen: Provides adequate vine growth without excess that delays fruiting
  • 16% Phosphorus: Enhanced P promotes abundant flowering and fruit set
  • 36% Potassium: Very high K is crucial for fruit quality, size, and storage life

This ratio produces maximum yields with superior fruit quality and extended harvest periods.

How does this prevent bitter cucumbers?

Bitter cucumbers are primarily caused by stress and improper nutrition. Our formula helps prevent bitterness by:

  • High potassium regulates water balance in fruits
  • Controlled nitrogen prevents excess vine growth that stresses plants
  • Balanced nutrition reduces environmental stress response
  • Micronutrients support proper enzyme function

For best results, maintain consistent watering and supplement with Cal-Mag Plus during fruit development.

Can I use this for greenhouse cucumber production?

Absolutely! Our formula is ideal for greenhouse cucumbers:

Greenhouse Application Rates:

  • Seedlings: 0.25 lbs per 100 gallons
  • Vegetative: 0.5 lbs per 100 gallons
  • Fruiting: 0.75-1 lb per 100 gallons

Special considerations:

  • Monitor EC closely - greenhouse plants are more sensitive
  • Increase Cal-Mag during rapid growth periods
  • Adjust based on variety (European types need higher EC)
  • Perfect for drip irrigation systems
What's the best schedule for continuous harvest?

For maximum continuous production:

  1. At Planting: Apply starter dose (3g per plant)
  2. First Flowers: Increase to full rate (5g per plant)
  3. First Harvest: Begin weekly applications
  4. Peak Production: Apply 2x weekly or fertigate continuously

Pro tips for extended harvest:

  • Foliar feed weekly during heavy fruiting
  • Increase potassium (use extra 0-0-50) during peak production
  • Never let plants dry out during fruiting
  • Harvest frequently to encourage more fruit set
DISCOVER MORE GARDEN WISDOM
HAVE QUESTIONS?

Check out our full FAQ or contact our support team for personalized advice.

Call us: (562) 351-5168
Email: questions@greenwaybiotech.com
CUSTOMER SUCCESS STORIES

"We switched to this fertilizer for our greenhouse cucumbers and saw a 40% increase in yields. The fruits are uniform, never bitter, and have excellent shelf life."

— Green Valley Greenhouse

"My pickling cucumbers have never been better! The high potassium really makes a difference - crisp texture and perfect size every time."

— Martha K., Home Gardener

"This formula eliminated our powdery mildew problems. The balanced nutrition and micronutrients keep our plants healthy throughout the season."

— Sunset Farms Organic

Greenway Biotech, Inc. | Est. 1989 | Making gardens and their humans healthier®

Premium fertilizers manufactured in California, USA

Customer Reviews

Based on 14 reviews
50%
(7)
7%
(1)
14%
(2)
7%
(1)
21%
(3)
R
Ron Hummel
Cucumbers

Works great been using this for a number of years now. Seems to increase growth and production. I grow with trellis only. Be careful not to overdue the amounts of fertilizer used. I closely watch the condition of plants and go from there.. You will notice when they need more fertilizer when production slacks off. Works for honeydew and watermelon also.

G
George Waterhouse
Opinion Neutral

We have only had the product for a short time (~ 1 month), so it is a bit early to provide a substantive review. At this point, it is unclear if there is any beneficial effect on our trellised cucumbers. Therefore, we are neutral on performance. We will continue to evaluate, and update the review as appropriate. BTW Greenway Biotech: Why are you asking for a review of fertilizers when we have only just received them? If you want a performance review, which we hope you do, try asking customers a couple of months after they received the product. At least by then they may have had a chance to see how the product works.

R
Russell Giobbie

It killed all my cucumber plants. What the hell do you put in this crap?

T
Tirsa Myler
Great product

This is great stuff! It has enabled us to grow cucumbers in Alaska

J
Joshua Borchers
Looking forward to my harvest of cucumbers

SO FAR SO GOOD... have used. Greenway biotech products for a decade. First go with. This. MIX. ALL OTHERS. HAVE worked great