1、High

Results demonstrated that UPAM-2 significantly enhanced both economic and biological yield and N-UE. In maize (61.28 qha −1), two split applications of UPAM-2 were the most effective, while three split applications optimized results in rice (59.64 qha −1).

2、Estimating thresholds of nitrogen, phosphorus and potassium fertilizer

In this study, we proposed a method that utilizes allowed ranges of partial nutrient balance and yield to estimate the threshold of nitrogen (N), phosphorus (P), and potassium (K) fertilizer applied to rice (Oryza sativa L.) fields in China.

3、Potassium ferrite nanoparticles on DAP to formulate slow release

Abstract Low use efficiency of nitrogen (N) and phosphorus (P) is major challenge of modern agriculture. Coating of conventional fertilizers with nanomaterials is a promising technique for improved nutrient use efficiency.

Nitrogen, Phosphorus, and Potassium (NPK) Fertilizer Guide

Understanding nitrogen, phosphorus, and potassium (NPK) fertilizer labels are essential to growing lush, healthy lawns, vegetables, fruits, and ornamental plants. The quantity of each nutrient is equally important.

How to Apply Slow

In this guide, we’ll explore best practices for applying slow-release fertilizer, highlight key application techniques, and explain why Risso Fertilizer stands out among premium SRF products on the market today.

Advancing nutrient management in agriculture: Rice straw to nitrogen

This study introduces a method for converting Rice straw into a slow-release hydrogel containing nitrogen, phosphorus, and potassium (NPK) fertilizers.

Recent advances in the chemistry of nitrogen, phosphorus and potassium

Nanofertilizers are a promising technology for sustainable agricultural production and are discussed in detail in this review. Fertilizer discovery is an important breakthrough that has rapidly increased crop yield globally (Vojvodic et al., 2014).

Compound Fertilizers

These compound fertilisers, or compounds, supply two or three of the major plant foods (nitrogen, phosphorus and potassium). Other plant foods, e.g. trace elements, as well as pesticides, can also be added, although this is not commonly done now.

Nitrogen, phosphorus and potassium organic compound fertilizer and

TL;DR: In this article, a nitrogen, phosphorus and potassium organic compound fertilizer and a preparation method and application thereof were discussed, which is especially suitable for a base fertilizer of wheat, corn, cotton, sorghum and other crops.

How to Make NPK Compound Fertilizer 15

Learn how to produce NPK 15-15-15 fertilizer from formula to packaging. Full guide on raw materials, machinery, and process flow for fertilizer plants.

In agricultural cultivation, compound fertilizers serve as critical nutrient supplements. They typically contain essential elements such as nitrogen (N), phosphorus (P), and potassium (K), which effectively promote plant growth and enhance crop yields. improper use may negatively impact plants. understanding how to correctly utilize compound fertilizers is crucial.

First, it is essential to define what compound fertilizers are. These are formulated by combining primary nutrients—nitrogen, phosphorus, and potassium—in specific ratios. Their advantage lies in providing comprehensive nutrition to meet the diverse demands of plant growth.

Next, let us discuss the formulation of high-nitrogen, phosphorus-free, low-potassium compound fertilizers. This type features a higher nitrogen content but lower phosphorus and potassium levels. While it effectively stimulates plant growth, it may not suit certain crops or soil conditions.

1. Nitrogen Fertilizer: Nitrogen is a key nutrient for plant growth, playing a critical role in leaf development and photosynthesis. The high-nitrogen formulation meets most plants' needs. for nitrogen-sensitive crops like tobacco or potatoes, excessive nitrogen can cause excessive vegetative growth, reducing yield. Adjustments must be made based on specific crops and soil conditions.

2. Phosphate Fertilizer: Phosphorus is vital for root development and disease resistance. Since this formulation contains little phosphorus, balancing nutrients is critical. Generally, phosphate should account for a proportional share of the total nutrients to meet plant requirements. Coordination with nitrogen and potassium ensures balanced nutrition.

3. Potassium Fertilizer: Potassium enhances stress resistance and fruit quality. The low-potassium formulation requires careful nutrient balancing. Potassium should also occupy a proportional share of total nutrients, complemented by nitrogen and phosphate for holistic nutrition.

In practice, optimal fertilizer ratios depend on crop type, soil conditions, and climate. For example:

• Acid-loving crops (e.g., citrus, tea) may benefit from increased phosphorus.
• Alkaline-loving crops (e.g., corn, wheat) might require more potassium. Additionally, monitoring plant health—such as leaf color and root development—helps assess fertilizer effectiveness.

high-nitrogen, phosphorus-free, low-potassium compound fertilizers hold agricultural value but demand adjustments tailored to crops and soil. Balancing nutrients and coordinating their application ensures efficient use and high-quality, productive crops.