Phosphorus and Potassium Content

Oct 13, 2025 by wbrum.org 58 views

Introduction

Liquid fertilizer from vegetable waste is an effective solution for managing plant remnants that are often wasted. The process of making this fertilizer involves research on the effect of the addition of EM-4 in three levels, namely 150 ml, 250 ml, and 300 ml, the size of the material, the amount of water added, and the fermentation time to the quality of the resulting liquid fertilizer. The method used in this study is the experimental method in the laboratory with a complete random design for three EM-4 dose treatments.

In this study, it was revealed that the addition of EM-4 had a significant impact on the quality of liquid fertilizer produced. Before the addition of EM-4, the level of carbon ratio to nitrogen (C/N) is 33.56, with a phosphorus content of 2.4%, potassium 0.6%, and oxygen chemical demand (COD) of 7120 mg/l, and pH 7.68. After the addition of EM-4, the C/N ratio level dropped to 30.02%, the phosphorus content decreased to 1.98%, potassium increased to 0.85%, COD decreased dramatically to 2386 mg/L, and pH to 5.55.

The Importance of EM-4 in Liquid Fertilizer Production

The addition of EM-4, which is a culture of microorganisms, has an important function in the fermentation process. This microorganism helps accelerate the decomposition of organic matter contained in vegetable waste, thus turning it into high quality liquid fertilizer. The use of EM-4 in liquid fertilizer production is a key factor in achieving optimal results.

The Role of EM-4 in Decomposition

The addition of EM-4 helps to break down organic matter in vegetable waste, resulting in a more efficient decomposition process. This is evident in the decrease in C/N ratio from 33.56 to 30.02, indicating that the decomposition process has occurred more efficiently.

The Effect of EM-4 on Nutrient Content

The addition of EM-4 also has an impact on the nutrient content of the liquid fertilizer. The decrease in phosphorus to 1.98% may indicate that microorganisms have used the phosphorus in the process of growth. However, an increase in potassium content to 0.85% can mean that potassium available in vegetable waste is sufficient to support the growth of microorganisms, and provide additional benefits for plants when liquid fertilizer is applied.

The Impact of EM-4 on COD Levels

Decreased COD levels from 7120 mg/l to 2386 mg/l indicates that organic matter in liquid fertilizer has been significantly decomposed. This is important because high COD can show contamination or instability in fertilizer. With a low COD, this liquid fertilizer is safer to use and is easier to apply to plants.

Analysis of the Effect of EM-4

The addition of EM-4 has a significant impact on the quality of liquid fertilizer produced. The results of this study show that the addition of EM-4 with a certain level has a positive effect on the quality of the liquid fertilizer produced.

C/N Ratio

The lower C/N ratio after the addition of EM-4 shows that the decomposition process has occurred more efficiently. The ideal ratio for liquid fertilizer usually ranges from 20-30, so the decline from 33.56 to 30.02 shows that the resulting liquid fertilizer is close to optimal quality.

Phosphorus and Potassium Content

Phosphorus and potassium are important nutrients for plants. The decrease in phosphorus to 1.98% may indicate that microorganisms have used the phosphorus in the process of growth. However, an increase in potassium content to 0.85% can mean that potassium available in vegetable waste is sufficient to support the growth of microorganisms, and provide additional benefits for plants when liquid fertilizer is applied.

Demand for Chemical Oxygen (COD)

Conclusion

Making liquid fertilizer from vegetable waste with the addition of EM-4 offers an efficient way to utilize plant residues. Research shows that the addition of EM-4 with a certain level has a positive effect on the quality of the liquid fertilizer produced. With the right fermentation process, this liquid fertilizer not only reduces waste, but also provides the nutrients needed for plant growth. Therefore, the use of liquid fertilizer from vegetable waste can be an environmentally friendly and economical choice for farmers.

Recommendations

Based on the results of this study, the following recommendations can be made:

The use of EM-4 in liquid fertilizer production is recommended to achieve optimal results.
The addition of EM-4 with a certain level has a positive effect on the quality of the liquid fertilizer produced.
The use of liquid fertilizer from vegetable waste can be an environmentally friendly and economical choice for farmers.

Future Research Directions

Future research directions include:

Investigating the effect of different levels of EM-4 on the quality of liquid fertilizer produced.
Studying the impact of different types of vegetable waste on the quality of liquid fertilizer produced.
Exploring the use of liquid fertilizer from vegetable waste in different agricultural settings.

By following these recommendations and exploring future research directions, the use of liquid fertilizer from vegetable waste can become a more widespread and effective practice in agriculture.

Q: What is liquid fertilizer from vegetable waste?

A: Liquid fertilizer from vegetable waste is a type of fertilizer made from the decomposition of vegetable waste using microorganisms. This process turns the waste into a nutrient-rich liquid fertilizer that can be used to promote plant growth.

Q: What are the benefits of using liquid fertilizer from vegetable waste?

A: The benefits of using liquid fertilizer from vegetable waste include:

Reduced waste disposal costs
Increased nutrient availability for plants
Improved soil health
Reduced environmental impact

Q: How is liquid fertilizer from vegetable waste made?

A: Liquid fertilizer from vegetable waste is made by adding microorganisms to vegetable waste and allowing it to decompose. The resulting liquid fertilizer is then filtered and concentrated to create a nutrient-rich solution.

Q: What is EM-4 and how does it affect the quality of liquid fertilizer?

A: EM-4 is a culture of microorganisms that helps to accelerate the decomposition of organic matter in vegetable waste. The addition of EM-4 has a significant impact on the quality of liquid fertilizer produced, resulting in a more efficient decomposition process and a higher nutrient content.

Q: What are the ideal conditions for making liquid fertilizer from vegetable waste?

A: The ideal conditions for making liquid fertilizer from vegetable waste include:

A suitable temperature range (20-30°C)
Adequate moisture levels
A sufficient amount of microorganisms (EM-4)
A suitable fermentation time (7-14 days)

Q: Can liquid fertilizer from vegetable waste be used in all types of agriculture?

A: Liquid fertilizer from vegetable waste can be used in a variety of agricultural settings, including:

Vegetable gardens
Fruit orchards
Crop fields
Greenhouses

However, it is essential to note that the use of liquid fertilizer from vegetable waste may not be suitable for all types of crops or agricultural settings.

Q: How can I ensure the quality of liquid fertilizer from vegetable waste?

A: To ensure the quality of liquid fertilizer from vegetable waste, it is essential to:

Monitor the pH levels and adjust as necessary
Check for contamination or spoilage
Follow proper storage and handling procedures
Conduct regular testing for nutrient content and other parameters

Q: Can I make liquid fertilizer from vegetable waste at home?

A: Yes, it is possible to make liquid fertilizer from vegetable waste at home using a simple setup and following proper procedures. However, it is essential to note that the quality of the resulting liquid fertilizer may vary depending on the conditions and equipment used.

Q: What are the potential risks associated with using liquid fertilizer from vegetable waste?

A: The potential risks associated with using liquid fertilizer from vegetable waste include:

Contamination or spoilage
Over-fertilization
Soil-borne diseases
Environmental impact

It is essential to follow proper procedures and guidelines to minimize these risks and ensure the safe use of liquid fertilizer from vegetable waste.