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Puerto Verde makes natural products for crop and garden care: magnesium sulfate powder, to correct magnesium deficiencies in plants; liquid Agro pH reducer, to adjust the pH of irrigation water; and cane molasses, a natural activator of soil microbial life and biofertilizers. All three are designed for vegetable gardens, gardens, greenhouses, and farms looking to care for their crops with a more natural approach, without compromising on effectiveness.
What products make up Puerto Verde's organic farming line?
Magnesium sulfate powder
Supplies magnesium to plants to correct deficiencies that manifest as yellowing leaves between green veins (chlorosis), improving photosynthesis and overall crop development.
View magnesium sulfate →
Liquid Agro pH reducer
Lowers the pH of irrigation water when it is too alkaline, so that plants can correctly absorb nutrients from the soil or substrate in irrigation and fertigation systems.
View Agro pH reducer →
Cane molasses
Natural byproduct of sugarcane that activates and feeds beneficial soil microorganisms, ideal for biofertilizers, manure, compost, and improving the fruit's Brix level.
View cane molasses →Which product do I need? Quick comparison by symptom
| What you see in your crop or garden | Recommended product |
|---|---|
| Yellowing leaves between green veins (chlorosis) | Magnesium sulfate |
| Slow growth despite regular fertilizing | Magnesium sulfate |
| Irrigation water with high pH (alkaline) | Agro pH reducer |
| Fertilizers don't seem to have an effect on the crop | Agro pH reducer |
| Drip irrigation or fertigation systems | Agro pH reducer |
| Soil or compost with little microbial activity | Cane molasses |
| Preparation of biofertilizers, manure, or fermented products | Cane molasses |
| You want to improve the Brix level (sweetness) of the fruit | Cane molasses |
| Preparation for the growing season | Magnesium sulfate + Agro pH reducer + cane molasses |
🍯
Looking for cane molasses in the size you need?
Available in 1, 7, 14, and 28 kg formats, from urban gardens to large-scale farms. View cane molasses →
Available in 1, 7, 14, and 28 kg formats, from urban gardens to large-scale farms. View cane molasses →
Why choose Puerto Verde's organic farming products?
🌿
Natural formulation
Designed for more natural crop care, without compromising on effectiveness
♻️
Biodegradable
They leave no toxic residues in the soil or irrigation water
🚿
Compatible with fertigation
Suitable for drip irrigation, spraying, and automated systems
🦠
Boost soil life
Cane molasses activates beneficial soil and compost microbiology
🏡
For all types of crops
From urban gardens to greenhouses, gardens, and farms
🇪🇸
Spanish production
A project committed to local employment and the environment
🌱 Before applying: Always follow the recommended doses on the product label according to the crop and area, and perform a test in a small area if it is your first time using it on a specific plant. Cane molasses must always be diluted in water before application; it should never be used pure.
Frequently asked questions about organic farming
What is magnesium sulfate used for in agriculture?
Magnesium sulfate supplies magnesium, an essential nutrient for photosynthesis and plant development. It is mainly used to correct magnesium deficiencies, which are identified by older leaves yellowing between the veins while the veins remain green (interveinal chlorosis), common in tomatoes, peppers, grapevines, citrus trees, and olive trees.
How is magnesium sulfate applied to plants?
It can be applied dissolved in irrigation water (root application) or, in some cases, as a foliar spray diluted in water, always following the dose indicated on the label according to the type of crop and the area to be treated.
What is Agro pH reducer used for?
Agro pH reducer lowers the pH of irrigation water when it is too alkaline. Water pH outside the range blocks root nutrient absorption, even if the soil or substrate is well fertilized, so correcting it improves the utilization of any fertilizer you use.
What pH should irrigation water have?
For most crops, the generally recommended range is between pH 5.5 and 6.5, where nutrient availability for the plant is highest. Each crop has its own specific optimal range, so it is advisable to consult the recommendations for your case and measure the water pH regularly.
What is cane molasses used for in agriculture?
Cane molasses is not a mineral fertilizer, but a source of energy (sugars and organic carbon) that feeds beneficial soil microorganisms. It is used to activate biofertilizers and manure, speed up composting, and, when applied as a diluted foliar spray, improve the Brix level (sweetness) of fruits and vegetables.
How is cane molasses used?
Always diluted in water, never pure: as an activator in biofertilizers and manure according to the recipe you follow, or in very diluted irrigation and foliar spraying, preferably early in the morning or at dusk to avoid sunburn. Find more details in our agriculture and garden blog.
Are they compatible with drip irrigation and fertigation?
Yes, both magnesium sulfate and Agro pH reducer are compatible with drip irrigation, sprinkler, and automated fertigation systems, always respecting the recommended doses and dilution to prevent emitter clogging. Since cane molasses is thicker, it should be well diluted and filtered before adding it to the irrigation system.
Can I use all three products at the same time?
Yes, in fact, they complement each other well at the start of the season: Agro pH reducer adjusts the irrigation water so that nutrients are available, magnesium sulfate supplies the magnesium the crop needs, and cane molasses boosts soil microbial activity. It is recommended not to mix them directly in concentrated form and to always follow the dosing instructions on the label.
Where can I learn more about naturally caring for my crops?
In our blog, in the agriculture and garden section, we publish guides and tips on naturally caring for vegetable gardens, gardens, and crops.
Where can I buy organic farming products online in Spain?
You can buy magnesium sulfate, Agro pH reducer, and cane molasses from Puerto Verde directly in this collection, with shipping throughout the mainland and formats ranging from home use in a garden to large quantities for farms.
Learn to care for your crops naturally
Discover guides and tips about agriculture and gardening in our blog.
