1、颗粒水溶肥料

颗粒水溶肥料是一种完全溶于水的多元素复合型肥料，呈颗粒状，具有养分均衡、吸收效率高、施用方式多样等特点。 该品类于2013年推出，打破了传统水溶肥以液态或粉末为主的形态限制，成为水溶肥行业的新型产品类别。 2025年《颗粒水溶肥料》 团体标准 颁布，标志着其进入标准化发展阶段。 传统水溶肥曾历经桶装液体肥、膏体肥等阶段，但在吸收率及施用灵活性上存在不足。 颗粒水溶肥支持底施、撒施等多种方式，适配各类灌溉系统，且物理形态允许添加更多营养成分，适用于大规模种植、缺水土地区及经济作物的精准施肥需求 [1]。 团体标准的实施进一步推动行业向品质化、规范化转型。

2、Polymer coated slow/ controlled release granular fertilizers

By coating technology, the rapidly dissolved water-soluble granular fertilizers can be covered by a polymeric layer or multi-layers with a barrier function to prevent the release of nutrients at higher rates [1].

3、Water Soluble Fertilizers in Horticultural Crops – An appraisal.

The production of short-cycle horticultural crops demands readily available provisions of fertilizer, rendering the application of water-soluble fertilizers via fertigation an oftentimes...

4、Water Soluble NPK Fertilizers

To provide fertilizer dissolved in the irrigation water to any overhead or drip irrigated crop. Wide range of formulations to suit many cropping situations. Manufactured using high grade raw materials. Contain chelated micronutrients to ensure effectiveness and stability.

WATER SOLUBLE FERTILIZERS

All formulations include properly proportioned ratios of micronutrients manufactured from high purity chelated iron, manganese, copper, zinc, sodium borate and molybdate. An intense blue-green tracer is included to facilitate easy monitoring when used in an injector.

Organic granular water

However, the existing water-soluble fertilizers contain more water-insoluble residues, which are easy to cause blockage and directly affect the use of the entire drip irrigation system.

Plant Production and Protection Division: Fertilizer Specifications

Fertilizer grade is an expression referring to the legal guarantee of the available plant nutrients expressed as a percentage by weight in a fertilizer, e.g. a 12-32-16 grade of NPK complex fertilizer indicates the presence of 12 % nitrogen (N), 32 % phosphorous (P 2 O 5) and 16 % potash (K 2 O).

Water soluble fertilizers: A liquid solution for crops

e name suggests, water soluble fertilizers (WSFs) dissolve completely in water. Nutrients delivered through WSFs are more eficiently abso. bed by the plant as compared to those supplied through traditional fertilizers. With WSFs, it is easy to make avai.

Water

Explore how water-soluble fertilizers deliver efficient, precise, and high-performance crop nutrition for modern farming.

Introduction and use of granular water

Granular water-soluble fertilizer, an innovative form of water-soluble fertilizer, is unique in that the water-soluble fertilizer is refined into granules. Although it appears as granules, it can be quickly and completely dissolved in water without residue, and the nutrients are balanced.

Granular water-soluble fertilizers are solid-form nutrients typically dissolved in water for application. Their advantages include ease of storage, transport, and efficient absorption by plants due to uniform nutrient dispersion. selecting appropriate ingredient composition is critical, as it directly impacts fertilizer efficacy, cost, and environmental sustainability.

1. Nitrogen (N) Content

Nitrogen is a primary nutrient essential for plant growth and development. In granular water-soluble fertilizers, nitrogen levels should balance plant needs without excess waste. Generally, nitrogen content ranges from 20% to 40%, adjusted according to crop type and growth stage.

2. Phosphorus (P) Content

Phosphorus is vital for cell structure, growth, and disease resistance. Phosphorus levels in fertilizers should ensure adequate absorption. Typically, phosphorus content ranges from 10% to 30%, depending on crop requirements and growth phases.

3. Potassium (K) Content

Potassium enhances stress resistance, disease resilience, and crop maturation. Fertilizer potassium content should align with plant uptake capacity, generally between 20% to 50%, tailored to specific crops and growth stages.

4. Micronutrient (e.g., Iron, Manganese, Zinc, Copper) Content

Micronutrients are indispensable for growth and disease resistance, though not primary nutrients. Their inclusion in fertilizers should be moderate to ensure proper absorption. Micronutrient levels typically range from 0.5% to 2%, customized by crop and growth stage.

5. Other Nutrient Components

Beyond macronutrients, fertilizers should contain secondary nutrients like calcium, magnesium, and sulfur. These auxiliary nutrients support growth and resilience, with optimal concentrations determined by crop-specific needs.

6. Recommendations

When selecting granular water-soluble fertilizers, prioritize formulations with balanced N-P-K ratios aligned with your crops and growth conditions. Monitor plant health and soil nutrient status regularly to adjust dosage and application methods for optimal results.

choosing the right ingredient composition in granular water-soluble fertilizers is crucial for healthy plant growth and yield maximization. When purchasing, carefully review the product’s nutrient content label and match it to your agricultural goals and crop requirements.