Haifa SOP GG Water Soluble Fertilizer 0-0-51
Haifa SOP GG 0-0-51 is a greenhouse-grade, fully water-soluble sulfate of potash fertilizer with 51% soluble potash and 18% sulfur for fertigation, hydroponics, and crop nutrition.
Haifa SOP GG 0-0-51 Water Soluble Fertilizer is a high-analysis potassium sulfate fertilizer formulated for growers who need clean, efficient potassium and sulfur nutrition. It is especially useful in greenhouse, fertigation, hydroponic, and intensive crop production systems where nutrient precision is essential.
Because Haifa SOP GG contains 0% nitrogen, it allows growers to increase potassium availability without raising nitrogen levels in the feeding program. This makes it a strong option during crop stages when potassium demand is high, such as flowering, fruit development, fruit sizing, and finishing. Its 18% sulfur content also helps support crops that require additional sulfur for healthy growth and crop quality.
Haifa SOP GG is fully water soluble and suitable for fertigation of all crops, as well as for preparing fertilizer blends and liquid fertilizer solutions. Its low-chloride profile and low salt index make it a dependable choice for professional growers managing salt-sensitive crops or high-frequency irrigation systems.
Haifa SOP GG Water Soluble Fertilizer is a premium sulfate of potash fertilizer designed for professional greenhouse, fertigation, hydroponic, and specialty crop nutrition programs. With a guaranteed analysis of 0-0-51, it supplies a concentrated source of soluble potassium plus sulfur without adding nitrogen, making it ideal when crops require high potassium levels but nitrogen inputs must be carefully controlled.
This greenhouse-grade potassium sulfate fertilizer contains 51% soluble potash, K₂O, and 18% sulfur, S, and is derived from potassium sulfate, according to the attached product label. The label also identifies it as a Greenhouse Grade Soluble Fertilizer and lists the package size as 25 kg / 55.12 lb. Haifa’s official product information also confirms Haifa SOP GG as fully water soluble, suitable for Nutrigation™ / fertigation of all crops, and useful in the production of fertilizer blends and liquid fertilizer solutions.
Quick Product Snapshot
| Product Feature |
Details |
| Product Name |
Haifa SOP GG |
| Fertilizer Type |
Sulfate of Potash / Potassium Sulfate |
| Grade |
0-0-51 |
| Soluble Potash, K₂O |
51% |
| Potassium, K |
42.3% typical, according to Haifa |
| Sulfur, S |
18% |
| SO₃ |
45% typical, according to Haifa |
| Nitrogen Content |
0% nitrogen |
| Form |
Greenhouse-grade soluble fertilizer |
| Common Uses |
Fertigation, greenhouse production, hydroponics, liquid fertilizer blends |
| Package Size |
25 kg / 55.12 lb |
Sources: product label and Haifa’s official product page.
Nutrient Analysis Chart
| Nutrient |
Percentage |
Grower Benefit |
| Soluble Potash, K₂O |
51% |
Supports fruit sizing, crop quality, firmness, and plant performance |
| Sulfur, S |
18% |
Helps support sulfur-demanding crops and balanced plant nutrition |
| SO₃ |
45% |
Sulfate form supports readily available sulfur nutrition |
| Nitrogen, N |
0% |
Allows potassium feeding without increasing nitrogen levels |
Key Benefits of Haifa SOP GG
| Benefit |
Why It Matters |
| High potassium concentration |
Delivers 51% soluble potash for efficient potassium feeding. |
| Nitrogen-free formula |
Useful during flowering, fruiting, finishing, or any stage where nitrogen must be limited. |
| Supplies sulfur |
Provides 18% sulfur, beneficial for crops with higher sulfur needs. |
| Fully water soluble |
Suitable for fertigation, greenhouse systems, hydroponic nutrient programs, and liquid fertilizer preparation. |
| Low chloride profile |
Haifa describes SOP as very low in chloride, making it appropriate for chloride-sensitive crops and intensive growing systems. |
| Low salt index |
Haifa lists a salt index of 46, helping make it a practical potassium source where salinity management matters. |
| Fast dissolving |
Haifa states that SOP dissolves rapidly and can produce a clear 10% solution at 20°C with minimal insoluble residue. |
Recommended Uses
| Application |
Suitable Use |
| Greenhouse Production |
Ideal for controlled-environment crop feeding programs |
| Fertigation / Nutrigation™ |
Designed for injection through irrigation systems |
| Hydroponics |
Can be used as a potassium and sulfur source in nutrient solutions |
| Liquid Fertilizer Blending |
Suitable for preparing liquid fertilizer solutions |
| Custom Fertilizer Programs |
Helps adjust potassium without adding nitrogen |
| Salt-Sensitive Crops |
Useful where chloride and salinity management are important |
The product label recommends using Haifa SOP GG according to the guidance of a qualified professional, such as a certified crop advisor, agronomist, university extension recommendation, or approved nutrient management plan.
Ideal Crop Situations
Haifa SOP GG is a strong fit when growers need:
| Crop Need |
Why Haifa SOP GG Helps |
| Higher potassium without nitrogen |
0-0-51 analysis supports potassium feeding while keeping nitrogen at zero |
| Sulfur nutrition |
18% sulfur supports balanced fertility programs |
| Low-chloride potassium source |
Helps reduce chloride concerns in sensitive crops |
| Fertigation-ready fertilizer |
Fully water soluble for irrigation-based feeding |
| Clear stock solutions |
Haifa reports rapid dissolution with very low insoluble residue |
