Caring for plants and ensuring they grow strong and healthy has always been a major concern for those who enjoy gardening, orchards, or simply taking care of their pots at home. For centuries, natural compost It has been the basis for obtaining healthy and vigorous crops, long before the chemical fertilizers we find everywhere today existed. But what are the secrets of traditional natural fertilizer, and what makes it the best option for both your plants and the planet?
If you want to discover the keys to achieving fertile soil, lush plants, and reducing your dependence on artificial products, you'll want to know everything about the types of natural fertilizers, how to prepare them, apply them correctly, and understand their unique benefits.
Why is natural fertilizer essential for plant growth?
Any garden, orchard or terrace flourishes when the soil is well nourished. It is not enough to water or put the plants in the sun: The basis of successful cultivation is a fertile, balanced and full of life substrate. Natural fertilizer provides all the essential nutrients that plants need to grow. and also improves soil structure, moisture retention and biological activity.
Use natural fertilizers Not only does it keep your plants healthy and beautiful, but it also prevents the buildup of chemical residues and protects the biodiversity of the environment. In addition, It represents an economic saving and contributes to the recycling of organic materials that would otherwise end up in the trash.
What exactly is a natural fertilizer?
By definition, natural fertilizer is any material of organic origin—plant or animal—that decomposes and releases nutrients into the soil. That is, natural elements that nourish the substrate as microorganisms decompose their matter. Among the most traditional are composted manure, worm castings, and home compost. But there are also home remedies using kitchen scraps, such as eggshells, banana peel, coffee grounds or even infusions made with specific plants.
Advantages of using natural fertilizers over chemical ones
- Slow and balanced delivery of nutrients: Organic fertilizers release nutrients gradually, preventing damaging peaks and supporting robust plant development.
- Improving soil structure: Organic material enhances the soil's ability to retain water and air, which are vital for the root system.
- Promoting microbial biodiversity: It provides food for worms, bacteria and other organisms that keep the substrate alive and fertile.
- Reduction of environmental impact: By eliminating chemicals, water pollution is minimized and the local ecosystem is protected.
- Self-sufficiency and savings: Reusing organic waste saves money and reduces household waste.
Types of traditional natural fertilizers and their main characteristics
Agricultural tradition and popular knowledge have identified several types of natural fertilizers that cover different needs depending on the type of plant, the climate and the characteristics of the terrain.
Composted animal manure
Undoubtedly, the well-composted animal manure It has been the star fertilizer for thousands of years. It is obtained from herbivorous animals such as sheep, cows, horses, and chickens. During the composting process, it decomposes and transforms into a safe, balanced and highly nutritious material.It is suitable for both horticultural plants and fruit trees, ornamental plants, and crops in general.
- Chicken manure: Very high in nitrogen, perfect for leafy greens and demanding plants.
- Horse manure: More balanced, it aerates the soil and adapts to most gardens.
- Cow dung: Rich in organic matter, Ideal for light soils that need better water retention.
- Sheep or goat manure: High in nutrients but drier, it releases elements little by little and It is excellent for long-cycle crops.
Earthworm humus
This fertilizer is produced thanks to the action of Californian red worms, which digest organic remains and transform them into a superior quality fertilizer, rich in nutrients and beneficial microorganismsThe softness of this humus and its constant contribution significantly improve soil structure.
Home compost
El compost It is easy to obtain from kitchen scraps (fruits, vegetables, coffee, small branches, dried leaves, etc.) and requires patience. As it decomposes, enriches the soil, increases water retention capacity and feeds microbial lifeIt is very versatile and useful for all types of plants.
green manures
El green manure It is based on growing certain plants (usually legumes) that are then incorporated into the soil to provide nitrogen and improve its structure. It is an ancient agricultural technique that is increasingly gaining ground in home gardens.
How to prepare and apply natural fertilizer correctly?
It is not enough to add organic fertilizer to the soil: To get the most out of it, it is key to follow certain tips that ensure the safety and benefit of the plants.
- Pre-composting: Except for worm castings, all manures should mature for at least six months before application. This neutralizes pathogens and ammonia, and prevents root burns.
- Moderate dose: Using too much can saturate the soil and damage the roots. The usual recommendation is 3 to 5 kg per square meter, once a year.
- Integration into the land: It is advisable to mix the fertilizer with the top layer of the substrate and not leave it on the surface.
- Avoid direct contact with stems and leaves: This prevents diseases and keeps the plant healthy.
The Composting Process: How to Turn Waste into Safe and Effective Fertilizer
El composting It is a natural process in which microorganisms decompose organic matter in the presence of oxygen, moisture, and the right temperature, resulting in a very stable and nutritious compost. It is essential for transforming manure, plant debris, and other waste into safe, pathogen-free fertilizer.
- Material balance: Combine carbon-rich waste (dry leaves, uninked cardboard, sawdust) with nitrogen-rich elements (food scraps, fresh grass, manure).
- Keep moist: The compost should be moist, but not soaked, so that the microorganisms can work at a good pace.
- Stir frequently: Airing the pile facilitates decomposition and prevents unpleasant odors.
- Let the compost mature: The entire process can take two to six months, depending on temperature, materials, and pile size.
When the compost is ready, it has a dark color, a homogeneous texture, and a smell of fresh earth.
When and how to apply natural fertilizer in gardens and pots
El optimal moment To fertilize with organic matter, it is best just before the start of strong growth, that is, at the end of winter or at the beginning of spring. It is also advisable to apply in autumn so that the nutrients are integrated into the soil during the winter dormancy. For small spaces, such as naturalistic gardens Or in pots, commercial worm castings are an excellent option, as they are pathogen-free and maintain ecological balance. It's always a good idea to mix the compost into the substrate before planting, or if the plant is already rooted, sprinkle a thin layer on top and stir in lightly.
The use of natural fertilizers Traditional organic fertilizers guarantee lush plants, fertile soil, and a healthy garden or orchard. Choosing organic and traditional farming not only directly benefits your crops, but also allows you to protect the environment and take advantage of resources that would otherwise go to waste. With a little dedication and patience, anyone can prepare and apply organic fertilizers at home, adapting them to the specific needs of each plant and the soil. This way, your plants will grow healthier, more resilient, and more productive, bringing vitality and color to your home or garden year-round.
