

Calcium Nitrate Fertilizer 15.5-0-0 - Prevent Blossom End Rot - 10 Pounds
Key item features
- Calcium Nitrate Fertilizer 15.5-0-0 - Prevent Blossom End Rot - 10 Pounds
-
{ "@context":"https://schema.org", "@type":"Product", "name":"Calcium Nitrate Fertilizer 15.5-0-0", "image":["https://www.greenwaybiotech.com/cdn/shop/files/calcium-nitrate-15-5-0-0.jpg"], "sku":"CAN-15-5-0-0-25LB", "brand":{"@type":"Brand","name":"Greenway Biotech"}, "description":"Ammonium calcium nitrate (15.5-0-0, 19% Ca). Fast-acting nitrogen and calcium for preventing blossom end rot and strengthening cell walls.", "additionalProperty":[ {"@type":"PropertyValue","name":"Nitrogen (N)","value":"15.5%"}, {"@type":"PropertyValue","name":"Calcium (Ca)","value":"19%"} ], "offers":{"@type":"Offer","priceCurrency":"USD","price":"29.99","availability":"https://schema.org/InStock","url":"https://www.greenwaybiotech.com/products/calcium-nitrate-15-5-0-0"}, "url":"https://www.greenwaybiotech.com/products/calcium-nitrate-15-5-0-0" } { "@context":"https://schema.org", "@type":"FAQPage", "mainEntity":[ {"@type":"Question","name":"What is calcium nitrate?","acceptedAnswer":{"@type":"Answer","text":"Calcium nitrate provides nitrogen (15.5%) and calcium (19%). It dissolves quickly for rapid nutrient delivery and prevents calcium deficiency disorders."}}, {"@type":"Question","name":"Does it prevent blossom end rot?","acceptedAnswer":{"@type":"Answer","text":"Yes! The 19% calcium content effectively prevents blossom end rot in tomatoes, peppers, and other susceptible crops when applied properly."}}, {"@type":"Question","name":"When should I apply it?","acceptedAnswer":{"@type":"Answer","text":"Apply when fruits are walnut-sized and continue every 1-2 weeks. Also apply after heavy rain or during drought stress."}}, {"@type":"Question","name":"Can I use it in hydroponics?","acceptedAnswer":{"@type":"Answer","text":"Yes! Use 1-2 tsp per gallon in hydroponic systems. Target EC of 1.5-2.5 mS/cm. Mix separately from phosphorus sources."}}, {"@type":"Question","name":"How does it compare to gypsum?","acceptedAnswer":{"@type":"Answer","text":"Unlike gypsum, calcium nitrate provides immediately available calcium AND nitrogen. It works faster and is ideal for rapid correction of deficiencies."}} ] }
/* Scoped styles for Shopify compatibility */ .gwb-ams{font-family:'Roboto',sans-serif;line-height:1.6;color:#064747;background:#fff} .gwb-ams * .gwb-ams .wrapper .gwb-ams h1{font-size:2.2rem;font-weight:700;color:#064747;margin:0 0 .5rem;text-align:center} .gwb-ams h2{font-size:1.6rem;font-weight:700;color:#A3B04A;margin:2rem 0 .8rem} .gwb-ams h3{font-size:1.2rem;font-weight:700;color:#6B4921;margin:1rem 0 .5rem} .gwb-ams a{color:#8A9439;text-decoration:none;font-weight:500;transition:color .2s} .gwb-ams a:hover .gwb-ams :focus-visible{outline:3px solid #FFB300;outline-offset:2px} .gwb-ams .green{color:#A3B04A!important} .gwb-ams .brown{color:#6B4921!important} .gwb-ams .teal{color:#064747!important} /* Hero */ .gwb-ams .hero-subtitle{text-align:center;max-width:760px;margin:0 auto 2rem;font-size:1.05rem;color:#333;line-height:1.7} .gwb-ams .trust-badges{display:flex;justify-content:center;gap:20px;margin:2rem 0;flex-wrap:wrap} .gwb-ams .badge{display:flex;align-items:center;gap:8px;padding:10px 20px;background:#FAFBF3;border-radius:25px;font-size:.9rem;min-height:44px} /* Visual Results Timeline */ .gwb-ams .visual-results{background:#FAFBF3;border-radius:12px;padding:2rem;margin:2rem 0;text-align:center} .gwb-ams .visual-results h3{text-align:center;margin-bottom:1.5rem} .gwb-ams .timeline .gwb-ams .timeline::before{content:'';position:absolute;top:50%;left:10%;right:10%;height:2px;background:linear-gradient(90deg,#E6E8D0 0%,#A3B04A 100%);z-index:0} .gwb-ams .timeline-item .gwb-ams .timeline-item .day{font-size:.85rem;color:#6B4921;font-weight:600} .gwb-ams .timeline-item .icon .gwb-ams .timeline-item span:last-child{font-size:.85rem;color:#666} @media(max-width:768px){ .gwb-ams .timeline .gwb-a - By Greenway Biotech, Inc.
Specs
- Npk ratio15.5-0-19
- Fertilizer typeSynthetic
- FormLiquid
- Rec. useVegetable, Fruit, Plant, Tree
- BrandGreenway Biotech
- Rec locationOutdoor
- Free shipping
Free 30-day returns
How do you want your item?
Similar items you might like
Based on what customers bought
PowerGrow Systems 15.5-0-0 Calcium Nitrate Organic Fertilizer, 1 lb $12.95
$1295current price $12.95PowerGrow Systems 15.5-0-0 Calcium Nitrate Organic Fertilizer, 1 lb
164.9 out of 5 Stars. 16 reviewsVoluntary Purchasing Group BAC351 4Lb Calcium Nitrate, 4 lb $23.66 Was $29.07 $5.92/lb
$2366current price $23.66, Was $29.07$29.07$5.92/lbVoluntary Purchasing Group BAC351 4Lb Calcium Nitrate, 4 lb
344.8 out of 5 Stars. 34 reviewsMasterBlend 4-18-38 Fertilizer Combo Kit (2.5 Pounds) $24.99
$2499current price $24.99MasterBlend 4-18-38 Fertilizer Combo Kit (2.5 Pounds)
454.4 out of 5 Stars. 45 reviews50+ bought since yesterday Miracle-Gro Organic Plant Food, Made from Plants for All Plants, OMRI Listed, 32 Fl oz $6.99 21.8 ¢/oz
50+ bought since yesterday
$699current price $6.9921.8 ¢/ozMiracle-Gro Organic Plant Food, Made from Plants for All Plants, OMRI Listed, 32 Fl oz
1164.5 out of 5 Stars. 116 reviews50+ bought since yesterday Expert Gardener All-Purpose Water Soluble Plant Food, 24-8-16 5 Pounds $9.97 $1.99/lb
50+ bought since yesterday
2 optionsAvailable in additional 2 options$997current price $9.97$1.99/lbExpert Gardener All-Purpose Water Soluble Plant Food, 24-8-16 5 Pounds
5444.6 out of 5 Stars. 544 reviewsBoca Hydro Calcium Nitrate Fertilizer 15.5-0-0 Plus 26% Calcium – High Purity Greenhouse Grade for Hydroponics, Soil, Fertigation, Foliar – Chloride-Free, Fast-Dissolving $16.99
5 optionsAvailable in additional 5 options$1699current price $16.99Boca Hydro Calcium Nitrate Fertilizer 15.5-0-0 Plus 26% Calcium – High Purity Greenhouse Grade for Hydroponics, Soil, Fertigation, Foliar – Chloride-Free, Fast-Dissolving
35 out of 5 Stars. 3 reviewsBest seller Espoma 4 Lb Organic Bone Meal All-Natural Plant Food 4-12-0 $10.52 Was $17.32 $2.63/lb
Best seller
$1052current price $10.52, Was $17.32$17.32$2.63/lbEspoma 4 Lb Organic Bone Meal All-Natural Plant Food 4-12-0
754.7 out of 5 Stars. 75 reviewsMasterBlend 4-18-38 Fertilizer Combo Kit (12.5 Pounds) $34.85
$3485current price $34.85MasterBlend 4-18-38 Fertilizer Combo Kit (12.5 Pounds)
454.8 out of 5 Stars. 45 reviewsMasterBlend 4-18-38 Fertilizer Combo Kit (5 Pounds) $32.95
$3295current price $32.95MasterBlend 4-18-38 Fertilizer Combo Kit (5 Pounds)
114.5 out of 5 Stars. 11 reviewsBougainvillea Fertilizer – Liquid Plant Food for Bougainvillea Blooms & Healthy Growth, 32 oz $19.99
$1999current price $19.99Bougainvillea Fertilizer – Liquid Plant Food for Bougainvillea Blooms & Healthy Growth, 32 oz
100+ bought since yesterday Garden Safe Take Root Rooting Hormone Powder, Grow New Plants from Cuttings, 2 Ounces $5.68 $2.84/oz
100+ bought since yesterday
6 optionsAvailable in additional 6 options$568current price $5.68$2.84/ozGarden Safe Take Root Rooting Hormone Powder, Grow New Plants from Cuttings, 2 Ounces
12034.5 out of 5 Stars. 1203 reviewsJack's Nutrients (#79081) Calcium Nitrate Part B 15-0-0, 2.2lbs $29.95
$2995current price $29.95Jack's Nutrients (#79081) Calcium Nitrate Part B 15-0-0, 2.2lbs
25 out of 5 Stars. 2 reviewsEspoma Organic Evergreen-Tone 4-3-4 Fertilizer and Plant Food for Evergreens, 8 lb $24.10 $3.01/lb
$2410current price $24.10$3.01/lbEspoma Organic Evergreen-Tone 4-3-4 Fertilizer and Plant Food for Evergreens, 8 lb
94.1 out of 5 Stars. 9 reviewsSupply Solutions Calcium Nitrate 15.5-0-0 + 19% Ca | Fast-Acting Water Soluble Fertilizer Prevents Blossom End Rot - Boosts Growth & Yield for Vegetables, Fruit, Gardens & Hydroponics (10 Pounds) $31.99
$3199current price $31.99Supply Solutions Calcium Nitrate 15.5-0-0 + 19% Ca | Fast-Acting Water Soluble Fertilizer Prevents Blossom End Rot - Boosts Growth & Yield for Vegetables, Fruit, Gardens & Hydroponics (10 Pounds)
MycoMaxx Garden Fungi Kit - 8 Species of Carefully Selected Arbuscular Mycorrhizal Fungi $20.50
$2050current price $20.50MycoMaxx Garden Fungi Kit - 8 Species of Carefully Selected Arbuscular Mycorrhizal Fungi
Calcium Nitrate - Provides Calcium and Nitrogen to Vegetables and Flowers - 5 lb Bag by Southern Ag $22.99
$2299current price $22.99Calcium Nitrate - Provides Calcium and Nitrogen to Vegetables and Flowers - 5 lb Bag by Southern Ag
25 out of 5 Stars. 2 reviewsRot Stop Rtu Blossom End Rot Stop 1676 $19.57 Was $23.60
$1957current price $19.57, Was $23.60$23.60Rot Stop Rtu Blossom End Rot Stop 1676
1584.3 out of 5 Stars. 158 reviewsHumic Acid GS Plant Foods Fertilizer, 1 Quart - 32 Oz $20.95
$2095current price $20.95Humic Acid GS Plant Foods Fertilizer, 1 Quart - 32 Oz
304.6 out of 5 Stars. 30 reviewsBonide Rot-Stop Liquid Plant Food - Liquid Fertilizer for Fruit - 16 oz $12.23
$1223current price $12.23Bonide Rot-Stop Liquid Plant Food - Liquid Fertilizer for Fruit - 16 oz
374.6 out of 5 Stars. 37 reviews
About this item
Product details
Introducing our solution-grade Ammonium Calcium Nitrate Fertilizer 15.5-0-0, enriched with an additional 19% calcium content, meticulously formulated to meet the demanding needs of modern agriculture. Whether you're cultivating in soil or hydroponically, this innovative fertilizer offers an optimal balance of water-soluble nitrogen and calcium, ensuring robust plant growth and enhanced crop yield.
Our Calcium Ammonium Nitrate fertilizer is specifically designed for agriculture, especially in acid soils, thanks to its acidifying properties. It enhances photosynthesis, reduces soil acidity, and promotes the development of beneficial soil microorganisms, aiding in nitrogen fixation. With a nitrogen content of 15.5%, our fertilizer provides a potent source of this vital nutrient, crucial for promoting vigorous vegetative growth, improving leaf formation, and enhancing overall plant health.
The absence of phosphorus makes it suitable for environments where phosphorus runoff is a concern, ensuring environmental sustainability. Additionally, Calcium Nitrate fertilizer 15.5-0-0 aids in water regulation in plant tissues, enhances photosynthesis, and protects plants from biochemical stresses, resulting in healthier fruits, especially in crops like tomatoes and apples.
Our fertilizer is also highly favored in hydroponic systems, where it can be diluted into feeding tubes to nourish plants growing in water indoors. What sets our fertilizer apart is its enriched calcium content, comprising 19% of the formula. Calcium plays a pivotal role in strengthening cell walls, enhancing plant structure, and reducing susceptibility to common disorders such as blossom end rot in fruits and vegetables.
Moreover, our fertilizer boasts 100% water solubility, facilitating rapid nutrient uptake by plants and minimizing the risk of nutrient leaching. This ensures efficient utilization of nutrients, maximizing their availability to crops and reducing wastage, ultimately leading to healthier plants and improved yields.
Whether you're a commercial grower or a passionate gardener, our Ammonium Calcium Nitrate Fertilizer 15.5-0-0 plus 19% calcium is your go-to solution for promoting robust plant growth, enhancing crop quality, and achieving superior yields. Trust in our commitment to quality and innovation to take your agricultural endeavors to new heights.
Key Features:Balanced Nutrient Composition: With a nitrogen content of 15.5%, our fertilizer fuels robust vegetative growth, fosters healthy leaf development, and bolsters overall plant vitality, ensuring your crops thrive at every stage of growth.
Enriched Calcium Content: Featuring an additional 19% calcium, our formula fortifies cell walls, enhances plant structure, and combats common ailments like blossom end rot, fortifying your crops with resilience and vitality.
Phosphorus-Free Formula: Our fertilizer is thoughtfully formulated with a phosphorus content of 0%, making it ideal for environments where phosphorus runoff poses concerns. This promotes sustainable agricultural practices, safeguarding the environment for future generations.
Enhanced Nutrient Uptake: Calcium Nitrate enhances the absorption of potassium, magnesium, and calcium from the soil, unlocking their potential for plant growth. By releasing these essential nutrients from the soil matrix, our fertilizer empowers your crops to thrive.
pH Regulation and Disease Prevention: The nitrate component of our fertilizer increases soil pH and strengthens cell walls, effectively combating diseases like clubroot in brassica crops. Additionally, fo
- Calcium Nitrate Fertilizer 15.5-0-0 - Prevent Blossom End Rot - 10 Pounds
-
{ "@context":"https://schema.org", "@type":"Product", "name":"Calcium Nitrate Fertilizer 15.5-0-0", "image":["https://www.greenwaybiotech.com/cdn/shop/files/calcium-nitrate-15-5-0-0.jpg"], "sku":"CAN-15-5-0-0-25LB", "brand":{"@type":"Brand","name":"Greenway Biotech"}, "description":"Ammonium calcium nitrate (15.5-0-0, 19% Ca). Fast-acting nitrogen and calcium for preventing blossom end rot and strengthening cell walls.", "additionalProperty":[ {"@type":"PropertyValue","name":"Nitrogen (N)","value":"15.5%"}, {"@type":"PropertyValue","name":"Calcium (Ca)","value":"19%"} ], "offers":{"@type":"Offer","priceCurrency":"USD","price":"29.99","availability":"https://schema.org/InStock","url":"https://www.greenwaybiotech.com/products/calcium-nitrate-15-5-0-0"}, "url":"https://www.greenwaybiotech.com/products/calcium-nitrate-15-5-0-0" } { "@context":"https://schema.org", "@type":"FAQPage", "mainEntity":[ {"@type":"Question","name":"What is calcium nitrate?","acceptedAnswer":{"@type":"Answer","text":"Calcium nitrate provides nitrogen (15.5%) and calcium (19%). It dissolves quickly for rapid nutrient delivery and prevents calcium deficiency disorders."}}, {"@type":"Question","name":"Does it prevent blossom end rot?","acceptedAnswer":{"@type":"Answer","text":"Yes! The 19% calcium content effectively prevents blossom end rot in tomatoes, peppers, and other susceptible crops when applied properly."}}, {"@type":"Question","name":"When should I apply it?","acceptedAnswer":{"@type":"Answer","text":"Apply when fruits are walnut-sized and continue every 1-2 weeks. Also apply after heavy rain or during drought stress."}}, {"@type":"Question","name":"Can I use it in hydroponics?","acceptedAnswer":{"@type":"Answer","text":"Yes! Use 1-2 tsp per gallon in hydroponic systems. Target EC of 1.5-2.5 mS/cm. Mix separately from phosphorus sources."}}, {"@type":"Question","name":"How does it compare to gypsum?","acceptedAnswer":{"@type":"Answer","text":"Unlike gypsum, calcium nitrate provides immediately available calcium AND nitrogen. It works faster and is ideal for rapid correction of deficiencies."}} ] }
/* Scoped styles for Shopify compatibility */ .gwb-ams{font-family:'Roboto',sans-serif;line-height:1.6;color:#064747;background:#fff} .gwb-ams * .gwb-ams .wrapper .gwb-ams h1{font-size:2.2rem;font-weight:700;color:#064747;margin:0 0 .5rem;text-align:center} .gwb-ams h2{font-size:1.6rem;font-weight:700;color:#A3B04A;margin:2rem 0 .8rem} .gwb-ams h3{font-size:1.2rem;font-weight:700;color:#6B4921;margin:1rem 0 .5rem} .gwb-ams a{color:#8A9439;text-decoration:none;font-weight:500;transition:color .2s} .gwb-ams a:hover .gwb-ams :focus-visible{outline:3px solid #FFB300;outline-offset:2px} .gwb-ams .green{color:#A3B04A!important} .gwb-ams .brown{color:#6B4921!important} .gwb-ams .teal{color:#064747!important} /* Hero */ .gwb-ams .hero-subtitle{text-align:center;max-width:760px;margin:0 auto 2rem;font-size:1.05rem;color:#333;line-height:1.7} .gwb-ams .trust-badges{display:flex;justify-content:center;gap:20px;margin:2rem 0;flex-wrap:wrap} .gwb-ams .badge{display:flex;align-items:center;gap:8px;padding:10px 20px;background:#FAFBF3;border-radius:25px;font-size:.9rem;min-height:44px} /* Visual Results Timeline */ .gwb-ams .visual-results{background:#FAFBF3;border-radius:12px;padding:2rem;margin:2rem 0;text-align:center} .gwb-ams .visual-results h3{text-align:center;margin-bottom:1.5rem} .gwb-ams .timeline .gwb-ams .timeline::before{content:'';position:absolute;top:50%;left:10%;right:10%;height:2px;background:linear-gradient(90deg,#E6E8D0 0%,#A3B04A 100%);z-index:0} .gwb-ams .timeline-item .gwb-ams .timeline-item .day{font-size:.85rem;color:#6B4921;font-weight:600} .gwb-ams .timeline-item .icon .gwb-ams .timeline-item span:last-child{font-size:.85rem;color:#666} @media(max-width:768px){ .gwb-ams .timeline .gwb-a - By Greenway Biotech, Inc.
Warranty
Warranty information
Customer ratings & reviews
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.

