1、Recent advances in the chemistry of nitrogen

Organic sources include animal manure, human manure, compost, crop residue, and industrial effluents. They supplied nutrients to the crops in small quantities but were more environmentally friendly and helped in the buildup of soil (Dhaliwal et al., 2019).

2、What Makes Fertilizer? NPK and Key Ingredients

Learn what fertilizers are actually made from — nitrogen, phosphorus, potassium, and more — and what those NPK numbers on the bag really mean.

3、The Nitrogen, Phosphate, and Potassium Contents in Organic Fertilizer

Abstract The nitrogen, phosphorus, and potassium contents are the key factors to determine the quality of organic fertilizers and right amount of application for agricultural uses.

4、How Is Fertilizer Made? What Are Its Components and Production

Wondering how fertilizers are made? In this guide, I'll walk you through the production processes of organic fertilizers and mineral fertilizers.

Nitrogen Phosphorus Potassium plant nutrients

Phosphate rock is treated with sulfuric acid to separate the phosphorus. Phosphoric acid is created in this process, and can be further combined with ammonia and sulfur to create a variety of fertilizer products.

Why Are Nitrogen, Phosphorus, and Potassium in Plant Fertilizer?

The most important components of plant fertilizer are the Big 3: nitrogen, phosphorous, and potassium.

Nitrogen

Nitrogen phosphorus fertilizers refer to chemical fertilizers that contain nitrogen (N) and phosphorus (P), which are essential macro elements crucial for enhancing crop productivity, promoting root development, and improving overall plant growth and yield.

NPK Fertilizers

NPK fertilizer is defined as a type of fertilizer that contains three essential nutrients: nitrogen, phosphorus, and potassium. It can exist in two forms: compound fertilizers, where the components are chemically bound, and blended fertilizers, which are a physical mixture of the individual nutrients.

Nitrogen and Phosphorus interactions in plants: from agronomic to

Several molecular actors have been revealed controlling the molecular interaction between these two essential elements drafting a working model of N and P interactions.

Organic Fertilizer

An organic fertilizer is a fertilizer that is derived from organic sources, including organic compost, cattle manures, poultry droppings and domestic sewage.

The organic components of nitrogen-phosphate fertilizer primarily include the following:

1. Nitrogen (N): The nitrogen in nitrogen-phosphate fertilizer mainly originates from nitrates. Nitrates are inorganic compounds composed of nitrogen, oxygen, and hydrogen, with the chemical formula NO₃⁻. In agricultural production, nitrates are widely used as fertilizers because they can be rapidly absorbed by plants, promoting growth.

2. Phosphorus (P): The phosphorus in nitrogen-phosphate fertilizer exists primarily in the form of phosphate ions. Phosphate ions are inorganic compounds composed of phosphorus, oxygen, and hydrogen, with the chemical formula PO₄³⁻. Phosphorus is one of the essential nutrients for plant growth, participating in various biochemical reactions within plants. It plays a critical role in growth, development, and metabolism.

3. Potassium (K): The potassium in nitrogen-phosphate fertilizer primarily exists as potassium ions. Potassium ions are inorganic compounds composed of potassium, oxygen, and hydrogen, with the chemical formula K⁺. Potassium is a vital microelement for plant growth, regulating water balance, energy metabolism, and cellular membrane stability within plants.

4. Trace Elements: The trace elements in nitrogen-phosphate fertilizer include calcium (Ca), magnesium (Mg), sulfur (S), and others. Although these elements are present in low amounts, they are crucial for plant growth. Calcium participates in physiological and biochemical reactions such as cell wall formation and hormone synthesis. Magnesium is a key component of chlorophyll, involved in photosynthesis and respiration. Sulfur, a constituent of proteins, plays a significant role in various biochemical reactions, impacting growth and development.

5. Vitamins: The vitamins in nitrogen-phosphate fertilizer include B-group vitamins and C-group vitamins. B-group vitamins, such as vitamin B₁ (thiamine), B₂ (riboflavin), and B₆ (pyridoxine), are involved in energy metabolism and protein synthesis. C-group vitamins, such as vitamin C (ascorbic acid) and vitamin E (tocopherol), contribute to antioxidant functions and enhance disease resistance in plants.

the organic components of nitrogen-phosphate fertilizer primarily include nitrogen, phosphorus, potassium, trace elements, and vitamins. These components collectively form the basic nutritional profile of the fertilizer, playing a vital role in promoting plant growth and increasing crop yields.