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Growing Solutions for a modern Agriculture in Ghana
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ICL Growing Solutions

As a world's leading fertilizer manufacturer, ICL provides farmers, growers, and manufacturers with a wide range of high-performing advanced fertilizers and agriculture solutions, including high-end specialty products for every need. Our products provide farmers with critical nutrients needed to increase yields and improve the health and quality of crops.
Our Brands
Polysulphate® is a new 4-in-1 natural fertilizer
Polysulphate fertilizer is a soluble, easily-absorbed, cost-effective answer to crop nutrition, containing four key plant nutrients: sulphur, potassium, magnesium and calcium. Polysulphate is an environmentally friendly fertilizer with a low carbon footprint of 0.034 kg CO2 equivalent per kg, making it suitable for organic farming and approved by global agencies like Ecocert, Ceres, and OMRI.
Controlled Released Fertilizers
Controlled Released Fertilizers were developed to provide optimum nutrient levels throughout the crops’ entire growing cycle, our Controlled Release Fertilizers improve yields, reduce nutrient losses, and simplify fertilizer application.
Nova Range single-source water-soluble fertilizers
The Nova line of water-soluble straight fertilizers offers a comprehensive portfolio of unique, highly soluble fertilizers specially selected for fertigation and foliar application.
Nutrivant
Nutrivant is a foliar range of fully soluble fertilizers (macro-, meso- and micro-nutrients) designed with the advanced adjuvant technology known as ‘Fertivant’ providing triple action i.e., Sticker, Spreader and Penetration for improved, long lasting foliar nutrition.
Contact our sales professionals
Our professional sale managers are here for any query or comment
Cristian Terrones
Agronomist Sustainability Specialist
+31418655706
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Polysulphate Cocoa Trial
Objectives & Treatments
To investigate the effect Polysulphate has on the yield of mature cocoa trees and to compare it with a comparable granular NPK fertilizer which also contains calcium, magnesium, and sulfur. The study was conducted by the Cocoa Research Institute of Ghana (CRIG) in 2020/21 and 2021/22 cocoa seasons on farms at 4 locations. The trial utilized a randomized complete block design, incorporating 3 treatments and 2 replicates per location. The ages of the mixed hybrid cocoa variety trees ranged from 10 to 15 years. Treatment 1 was the unfertilized control, treatment 2 was the reference granular fertilizer (NPK 0-22-18+9CaO+9MgO+7S) applied at 375 kg/ha per year, treatment 3 was Polysulphate granular fertilizer applied at 375 kg/ha per year. All recommended agronomic practices were followed.
Trial results
Polysulphate significantly increased the two-year cumulative dry cocoa bean yield at 3 of the 4 locations.

On average, Polysulphate increased the dry bean yield by 13.6% compared with the reference granular fertilizer and by 70.8% compared with the unfertilized control.

Based on these results, Polysulphate is considered suitable for mature cocoa plantations at the application rate of 375 kg/ha.