ULTRALGAE Ca+Mg
A seaweed-based calcium–magnesium biostimulant formulated to improve nutrient transport, prevent deficiency disorders, and enhance fruit quality and stress resistance.

Details
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ULTRALGAE Ca+Mg is highly concentrated natural biostimulant formula product developed based on the MAXBIO Co-effect R&D Center of the Citymax group. It uses imported Ascophyllum nodosum, extracted by the exclusive patented "three-stage enzymatic hydrolysis" process of Citymax, and then fused with calcium and magnesium to form a stable micro-coating structure, which retains the active substances in the seaweed to the greatest extent while overcoming the inertia of calcium transport. This product can efficiently promote nutrient absorption and distribution. After use, it can prevent poor quality problems such as yellowing, navel rot, and cracked fruit caused by crop deficiency, providing more guarantees for healthy growth of crops and improving quality and yield.
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Benefits
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• Strengthens cell walls, improving fruit firmness and storability.
• Enhances nutrient transport and calcium accumulation in fruits.
• Improves crop resistance to disease and environmental stress.
• Delays leaf senescence, maintaining late-stage nutrient supply.
• Stimulates root meristem activity and enhances root vitality.
• Improves crop adaptability to heat, drought, and salinity stress
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Field Application Cases
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Recommended Application
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| Method | Crop | Period | Dosage | Use Suggestions |
| Root Irrigation | Vegetables (tomatoes, watermelons, peppers, etc.) | After transplanting, continuous harvesting period | 15-30 Kg/Ha | 1-2 Kg/1000L Water |
| Fruit trees (citrus, apples, grapes, cherries) | Ripening | 15-30 Kg/Ha | 1-2Kg/1000L Water | |
| Tubers (potatoes, beets, sweet potatoes, etc.) | Seedling stage, tuber expansion stage | 15-30 Kg/Ha | 1-2Kg/1000L Water | |
| Leafy vegetables (lettuce, romaine lettuce, etc.) | Seedling stage, early maturity stage | 15-30 Kg/Ha | 1-2Kg/1000L Water | |
| Banana | Seedling stage, earliest stage | 15-30 Kg/Ha | 1-2Kg/1000L Water | |
| Foliar spray | Fruit trees(Mango、grape、apple, pear, etc) | bud break、Young | 0.75-1 Kg/Ha | 1-1.2Kg/1000L Water |
| Cotton | Seedling stage, bud stage | 0.75-1 Kg/Ha | 1-1.2Kg/1000L Water | |
| Berries (coffee, blueberries, etc.) | Flowering stage, expansion stage | 0.8-1.5 Kg/Ha | 1-1.2Kg/1000L Water | |
| Rice, wheat | Jointing stage, filling stage | 0.75-1 Kg/Ha | 1-1.2Kg/1000L Water | |
| Potato | starch accumulation stage | 0.75-1 Kg/Ha | 1-1.2Kg/1000L Water | |
| Soybeans | Pod setting stage | 0.75-1 Kg/Ha | 1-1.2Kg/1000L Water |
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Honors and Qualifications
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latest News
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about us
Welcome to CityMax Group
Citymax group was established in the ancient city of Xi’an. With subsidiaries:Xi’an Citymax AgroChemical Co.,Ltd., Xi’an Greenfert Crop Science Co.,Ltd., Shaanxi Citymax Agrotech Co.,Ltd.
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2012Establishment Time
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30+global Distributors
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70+countries

Imported Ascophyllum nodosum processed by patented three-stage enzymatic hydrolysis to preserve high seaweed activity.







