1、Agronomic and environmental aspects of phosphate fertilizers varying in source and solubility: an update review

Phosphorus (P) is an essential macronutrient that can limit normal plant growth if not provided by the soil or by appropriate quantities of fertilizers. For soils low in available P, the nutrient must be applied in either organic or inorganic form to obtain optimal crop yield.

2、Nitrogen, phosphorus, calcium, and magnesium applied individually or as a slow release or controlled release fertilizer increase growth and yield and affect

Plant producers can use MAP as a slowly soluble fertilizer in production of crops. One advantage of using slowly soluble fertilizer compared to traditional highly soluble fertilizers is that plant nutrients are released over a longer time period that may or may not correspond better with plant needs.

3、Dissolution Kinetics of Macronutrient Fertilizers Coated with Manufactured Zinc Oxide Nanoparticles

These novel solubility features of ZnO NPs might be exploited to improve the efficiency of Zn fertilizers. In this study, we compared the Zn solubility and dissolution kinetics of ZnO nanoparticles and bulk ZnO particles coated onto two selected granular macronutrient fertilizers, urea and monoammonium phosphate (MAP).

4、Production of a water

We performed solid-state fermentation by using Bacillus subtilis strain N-2 to produce a water-soluble fertilizer containing amino acids. Strain N-2 produced a high yield of protease, which transformed the proteins in soybean meal into peptide and free amino acids that were dissolved in the fermentation products.

5、Water soluble phosphate fertilizers for crops grown in calcareous soils – an outdated paradigm for recycled phosphorus fertilizers?

The current paradigm for phosphorus (P) fertilizers applied to calcareous soil is that almost entirely water soluble P fertilizers are efficient and sparin

Developing alternatives to phosphate fertilizers of high water solubility

As part of an integrated catchment management program for the eutrophic waterbodies, an intensive research program was conducted to develop alternatives to highly water soluble phosphatic fertilizers which were argonomically and economically effective.

Influence of water solubility of granular zinc fertilizers on plant uptake and growth: Journal of Plant Nutrition: Vol 22, No 12

Regression correlations showed that the higher the water solubility, the more effective the Zn fertilizer in increasing dry matter production. Assuming that 5 to 10 kg Zn ha −1 are the rates commonly recommended, about 50% water soluble Zn is required to adequately supply the crop's needs.

Design and Kinetic Study of Sustainable Potential Slow

Sustainable slow-release fertilizers have been reported as environmentally friendly alternatives to highly soluble commercial products. Their main advantages are that they dissolve and release nutrients into soils in a way that assures bioavailability of nutrients to plants over a long period of growth.

Nanotechnology in fertilizers

A nanofertilizer refers to a product that delivers nutrients to crops in one of three ways. The nutrient can be encapsulated inside nanomaterials such as nanotubes or nanoporous...

Growth and yield responses of crops and macronutrient balance influenced by commercial organic manure used as a partial substitute for chemical fertilizers

It was concluded that appropriate COM used as a partial substitute for chemical fertilizers could not only meet the crops’ nutrient requirement, but also improved the efficiency of macronutrient and remained positive balance of P and K in the intensive tomato–radish–pakchoi cropping system, which can be regarded as an effective measure for a con...

Macronutrient water-soluble fertilizers, also known as high-concentration compound fertilizers, are water-soluble fertilizers containing essential plant nutrients such as nitrogen (N), phosphorus (P), and potassium (K). These fertilizers are characterized by high nutrient content, ease of use, rapid absorption by plants, and the ability to enhance crop growth rates and yields.

I. What Are Macronutrient Water-Soluble Fertilizers? Macronutrient water-soluble fertilizers are water-soluble formulations composed of multiple essential nutrients (e.g., nitrogen, phosphorus, potassium) that are critical for plant growth, development, flowering, and fruiting. They typically utilize water-soluble polymers as carriers, combined with various nutrients to create a high-concentration, easily absorbable product.

II. Characteristics of Macronutrient Water-Soluble Fertilizers:

1. High Nutrient Content: The nutrient concentration in these fertilizers far exceeds that of ordinary compound fertilizers, adequately meeting plants’ nutritional needs.
2. Convenient to Use: Dissolved in water, they can be applied directly after dilution, offering simplicity and efficiency.
3. Rapid Absorption: Due to their high nutrient content and plant-available forms, they provide quick nourishment, accelerating plant growth.
4. Effective Results: With a comprehensive range of nutrients, they address plants’ requirements at different growth stages, leading to optimal outcomes.

III. Classification of Macronutrient Water-Soluble Fertilizers: Based on nutrient composition and ratios, these fertilizers are categorized as:

1. Nitrogen-Based: Rich in nitrogen, suitable for legumes, peanuts, vegetables, and other nitrogen-demanding crops.
2. Phosphorus-Based: High in phosphorus, ideal for fruit trees, flowers, vegetables, and other phosphorus-intensive plants.
3. Potassium-Based: Potassium-rich, designed for corn, wheat, potatoes, and other crops requiring significant potassium.
4. Balanced (N-P-K): Contains nitrogen, phosphorus, and potassium, applicable to all plant types.

IV. Precautions for Using Macronutrient Water-Soluble Fertilizers:

1. Select the Right Type: Choose a formulation matched to the plant’s growth stage and soil conditions.
2. Follow Recommended Dosages: Excessive use may lead to overgrowth or nutrient imbalance, while insufficient application might fail to meet demands. Adhere to product guidelines or expert advice.
3. Timing Matters: Apply during peak growth periods for efficient uptake. Avoid fertilizing during hot weather to prevent "fertilizer burn."
4. Complement with Other Fertilizers: While macronutrient fertilizers are potent, combine them with organic fertilizers and micronutrient supplements to ensure full-spectrum plant nutrition.

macronutrient water-soluble fertilizers offer high nutrient density, ease of application, and rapid efficacy. Suitable for diverse plants, their effective use requires selecting the right type, proper dosing, timely application, and integration with other fertilizers. With scientific management, they significantly boost plant growth and yield potential.