10 Best Organic Fertilizers in the Philippines 2026 | The Urban Gardening Shop, Aditha's Farm Supply, and More

Fish meal and fish emulsion do the same job by providing primary nutrients such as nitrogen and phosphorus. They also act as food for the good bacterias that also helps with the plant's growth. 

Fish meal is made by grinding, pressing, and drying fish bones, scales, and skin, making them useful instead of throwing them as a waste. They are buried in the soil to transfer the nutrients to the plants' roots, while the plants need to be watered heavily to produce significant results. 

On the other hand, fish emulsion is made by immersing the fish waste with water and other organic ingredients, usually for seven days. The liquid is separated from the soaked fish waste, and it is ready to be poured on the soil or sprayed on the leaves.

Animal manures are the most readily available organic fertilizers that use the waste of farm animals such as chicken, cow, horse, sheep, and pig. These organic fertilizers are the most recommended because they contain a high level of nitrogen, which supports plant growth, and are easily found in the market.

They are often bought composted, as raw manures take longer to break down and might contaminate your soil. They are safe from weed seeds and have reduced odor. They are usually broken down with a temperature of at least 140°F or 60°C  for six months or longer so that the plants will absorb the nutrients quickly and effectively.

Shellfish meals are produced by composting shells of crabs, shrimps, and lobsters, hence the name. It is rich in nitrogen, phosphorus, and magnesium to strengthen the roots. It also promotes the growth of helpful and healthy microorganisms and earthworms as they eat it when fertilizers are buried deep in the soil.

Greensand fertilizer is a natural mineral from ocean floors, often used to raise and maintain sensitive plants as it slowly releases and distributes nutrients so that the plants' roots won't burn.

The sand is mixed with a slightly green color because of the glauconite, which means that it contains a high level of iron, potassium, and magnesium. It is mainly used for making the soil healthy. 

It has many other benefits such as loosening soil, especially clay soil, allowing the oxygen to penetrate, improving moisture retention to keep the plants hydrated, and enhancing the roots' growth. Please take note that it should be used directly in the soil as it is not water-soluble.

Rock Phosphate, also called rock dust, is essential since plants need a large amount of phosphate to grow strong and healthy. It is primarily used by those who have flower, fruit, or vegetable plants because it makes the plants' roots healthy. However, due to a lack of resources, rock phosphate is for sale in the market as an organically-processed product.