1、"Humic Acid: Types, Sources & Fertilizer Uses Guide"

Discover humic acid’s definition, main types, and natural sources. Learn how it boosts fertilizer efficiency and improves soil health for higher yields.

2、Humic substances: Structure, function and benefits for

This review advocates switching to use of organic matter (manure and compost) that contains vital nutrients for plant growth and helps restore soil health. Humic substances (HSs), derived from degraded plant remains and found ubiquitously in nature, are an important source of organic matter.

3、The Impact of Humic Acid Fertilizers on Crop Yield and Nitrogen

Humic acid, as a novel organic fertilizer, has the potential to improve soil fertility and the agronomic performance of crops.

4、Humic Acid Fertilizer Explained and How to Use It Effectively

Humic acid fertilizer is a natural product that improves soil quality and helps plants grow stronger and healthier. It comes from organic materials like peat and leonardite, with different types offering unique benefits for soil and plants.

5、Humic Acid Enhances Soil Fertility and Microbial Diversity Under

Excessive nitrogen fertilization can degrade soil quality by inducing nutrient leaching, disrupting the microbial balance, and impairing plant reproductive growth, ultimately reducing crop yields. Optimizing nitrogen application rates and integrating humic acid fertilizers are promising strategies f …

How to Choose the Best Fertilizer Humic Acid: A Complete Buyer's Guide

Learn what to look for in fertilizer humic acid, including types, key features, and value tips to make an informed purchase decision.

Understanding How Humic Acid Fertilizers Regulate Nitrogen, Promote

These fertilizers have humic substances like humic acid, fulvic acid, and humin. Scientists say humic acid can dissolve in alkaline liquids but not in acidic ones.

How Humic Acid Fertilizer Improves Soil and Plant Growth

Humic acid is available in several forms, including liquid concentrates, soluble powders, and granular products. Liquid concentrates are often diluted and used as a soil drench, applied directly to the soil around the base of the plant to immediately impact the root zone.

Humic Acid Fertilizer: What It Is and Its Key Benefits

While humic acid influences nutrient availability indirectly through soil improvements, fulvic acid directly facilitates nutrient transfer into plants. Both humic and fulvic acids often work synergistically to promote plant health and soil fertility.

Understanding the Role of Humic Acids on Crop Performance

HS are classified as humic acids (HA), fulvic acids (FA), and humins based on their solubility in water, acidic or alkaline solutions (De Melo et al., 2016).

Plant humic acid fertilizers are soil amendments rich in organic matter, primarily derived from the decomposition of animal and plant residues under microbial action. They not only improve soil structure but also enhance soil fertility, increasing crop yield and quality. Below is a detailed introduction to the types of plant humic acid fertilizers:

1. Animal-based Humic Acid Fertilizers: These fertilizers originate from animal manure, such as cow dung, horse manure, and chicken manure. Through processes like high-temperature fermentation or anaerobic digestion, they are transformed into humic acid fertilizers. Rich in nitrogen, phosphorus, potassium, and other nutrients, they provide essential nourishment for plant growth. Additionally, they contain trace elements and vitamins, which help improve crop quality.

2. Plant-based Humic Acid Fertilizers: Derived from plant residues like straw, fallen leaves, and bark, these fertilizers convert organic compounds (e.g., cellulose, lignin) into humic acid through microbial activity. With high humic acid content, they enhance soil structure, physical-chemical properties, and fertility. They also supply essential nutrients for plant growth, promoting crop development.

3. Mixed-type Humic Acid Fertilizers: These fertilizers combine animal-based and plant-based humic acids in specific ratios. By leveraging the advantages of both types, they optimize nutrient utilization and improve overall fertilizer effectiveness. Suitable for diverse soils and crops, they offer broad adaptability.

4. Biodegradable Humic Acid Fertilizers: Produced via biotechnological degradation of animal- or plant-based humic acids, these fertilizers are environmentally friendly and reduce pollution risks. They are ideal for agricultural production with high environmental protection requirements.

5. Composite Humic Acid Fertilizers: Formulated by blending multiple animal- or plant-based humic acids, these fertilizers maximize nutritional benefits and enhance comprehensive efficacy. They are suitable for agricultural systems requiring diverse nutrients.

6. Slow-release Humic Acid Fertilizers: Manufactured through specialized processes, these fertilizers release nutrients gradually, extending fertilization periods and improving resource efficiency. They are designed for long-term agricultural applications.

plant humic acid fertilizers vary widely in type and functionality. When selecting and applying them, factors such as soil conditions, crop requirements, and environmental protection should be carefully considered to achieve optimal results.