Secondary Macronutrients Market Size

Global Secondary Macronutrients Market size was valued at USD 33.1 billion in 2023 and is poised to grow from USD 34.99 billion in 2024 to USD 54.51 billion by 2032, growing at a CAGR of 5.7% during the forecast period (2025-2032). 

Current agricultural intensification, such as monoculture cultivation and overuse of nitrogen, phosphorus, and potassium (NPK) fertilizers, has caused a drastic reduction in secondary macronutrient levels—i.e., calcium (Ca), magnesium (Mg), and sulfur (S)—in soils globally. This imbalance of nutrients leads to poor plant growth, weakened resistance to pests, and lower yields. As farmers increasingly recognize the role of these nutrients in maintaining soil fertility and plant health, the demand for specialized fertilizers rises. Consequently, this depletion acts as a major catalyst for the expansion of the global secondary macronutrients market.

With growing consumer awareness around food quality, nutritional content, and safety, there is increasing pressure on farmers to produce superior-grade crops. Secondary macronutrients are essential in enhancing crop qualities like texture, flavor, and shelf life. For example, calcium hardens cell walls, magnesium aids photosynthesis, and sulfur improves protein synthesis. Farmers are embracing balanced fertilization practices to achieve high quality requirements in domestic and export markets. This shift in cultivation practices significantly fuels the demand for secondary macronutrients, reinforcing their importance as a key market-driving factor.

What Environmental Benefits result from AI-based Nutrient Management?

Artificial intelligence (AI) is revolutionizing the global secondary macronutrients market by enhancing precision agriculture techniques. Soil analysis and crop monitoring systems based on AI offer farmers reliable information on secondary macronutrients such as calcium, magnesium, and sulfur. This allows fertilizer application with precision, maximizing the efficiency of nutrient use and minimizing the environmental footprint. For instance, AI-based tools can suggest personalized nutrient management strategies so that crops will get just what they need for maximum growth. As a result, this results in increased crop quality and yields, creating a boost in demand for secondary macronutrient fertilizers in the market.

In March 2025, researchers developed machine learning and AI models to predict soil nutrient levels, including secondary macronutrients like calcium, magnesium, and sulfur, using satellite and weather data. This advancement enables precise fertilization strategies, enhancing crop yields and promoting sustainable agriculture practices.

How are Startups Contributing to Long-Term Agricultural Sustainability?

The startup ecosystem of the global secondary macronutrients market is picking up speed, with a concentration on sustainable and technology-enabled solutions. In parts of Canada with seriously tricky soil conditions, farmers have turned to calcium and magnesium fertilizers for enhancing the soil structure and improve crop resilience. These environmental stewardship and best management practices have propelled the growth of secondary macronutrients in the country to improve the quality of crops while promising sustainability in the agriculture sector at the same time.

Founded in 2020, AgriTech Innovations creates intelligent farming systems that combine AI and IoT for precision nutrients. Its flagship solution, NutriSense System, applies real-time soil sensor and satellite information to identify calcium, magnesium, and sulfur deficiencies. The system facilitates tailored fertilization, minimizing wastage and increasing yield. Their innovation, Predictive Nutrient Analytics, predicts soil imbalances, giving farmers proactive planning capabilities. This improves nutrient efficiency and enhances resilience in contemporary crop production systems through informed, timely interventions.

Established in the year 2018, EcoFert Solutions focuses on sustainable agriculture by producing eco-friendly secondary nutrient fertilizers. Their best product, SulphurPlus, is organic slow-release, high-sulphur plant mixture that boosts crop health and protein synthesis. Their technology, Bio-Enhanced Nutrient Release Technology, takes advantage of the soil's resident microbes for sequential release of nutrients. By so doing, this method enhances the structure and cycling of soil while reducing environmental interference. By such, EcoFert unites ecological responsibility and high-output farming with stable fertility of soils.