Observations and Parameters

Oct 13, 2025 by wbrum.org 26 views

The Application of Phosphate Solvent Microbes and Organic Material Sources to Increase the Absorption of P and Potato Plant (Solanum Tuberosum L.) on Andisol Soils Affected by the Eruption of Mount Sinabung

Introduction

The eruption of Mount Sinabung has had a significant impact on the agricultural land in the surrounding areas, including the Andisol soil in Kutarayat Village, Naman Teran District, Karo Regency, Medan. The eruption has led to a reduction in the nutritional content of the soil and affected the soil structure, resulting in poor plant growth. In this study, we aim to explore the effects of phosphate solvent microbial applications and sources of organic matter on phosphorus absorption (P) and the growth of potato plants (solanum tuberosum L.) in Andisol soil affected by the eruption of Mount Sinabung.

Methodology

This study was conducted from February to June 2015 in Kutarayat Village, Naman Teran District, Karo Regency, Medan. The methodology used in this study was a Factorial Random Design (Rack) with two treatment factors and three replications. The first factor in this study is the type of microbial (M), which consists of four treatment levels: (m0) without microbial application, (m1) application of 30 ml phosphate solvent bacteria, (m2) application of phosphate solvent fungi as much as 30 ml, and (M3) Application of a combination of bacteria and phosphate solvent mushrooms with 15 ml each. While the second factor is the source of organic matter (B) consisting of five levels: (B0) without the application of organic material, (B1) 100 g of cow dung/plant, (B2) chicken manure 100 g/plant, (B3) rice straw 100 G/plants, and (B4) Tithonia diversifolia 100 g/plants.

Observations and Parameters

Observations were made on several parameters, including soil pH (H2O), the number of microbial populations, microbial activity (total respiration), the percentage of soil C-organic, P available, absorption of P, and the dry weight of the canopy and plant roots.

Results

The results of this study indicate that the application of phosphate solvent microbes and organic matter, both individually and in interaction, significantly increases the absorption of P and potato plant growth in Andisol soil that is affected by the eruption of Mount Sinabung.

Additional Analysis and Explanation

Andisol soil, which is a type of soil that is rich in minerals and generally has good agricultural capacity, can experience quality degradation due to volcanic activity, including the eruption of Mount Sinabung. When the soil has an eruption, the nutritional content can be reduced and the soil structure can be affected, which has a negative impact on plant growth.

Phosphate solvent microbes play an important role in increasing the availability of essential phosphorus for plants. Phosphorus is one of the main nutrients needed in the process of photosynthesis, energy, and root development. In this study, the application of phosphate solvent microbes has been shown to increase the efficiency of the absorption of P by plants, which in turn increases the growth of potato plants.

Sources of organic materials such as cow dung, chicken manure, rice straw, and diversifolia tithonia also have a crucial role. Organic material not only functions as a source of nutrition, but also contributes in improving soil structure, increasing water retention capacity, and enriching soil microbial activity. Therefore, a combination of phosphate solvent microbes and sources of organic matter can be an effective strategy for increasing agricultural output in land affected by volcanic eruption.

Conclusion

The implementation of agricultural technology that utilizes microbes and organic matter can potentially be a solution to improve soil fertility and increase crop productivity in eruption affected areas. This not only provides benefits for local farmers, but also contributes to overall food security.

Recommendations

Based on the results of this study, we recommend the following:

The use of phosphate solvent microbes and organic matter as a strategy to improve soil fertility and increase crop productivity in eruption affected areas.
The development of agricultural technology that utilizes microbes and organic matter to improve soil fertility and increase crop productivity.
The provision of training and education to local farmers on the use of phosphate solvent microbes and organic matter to improve soil fertility and increase crop productivity.

Future Research Directions

Future research should focus on the following areas:

The development of new agricultural technologies that utilize microbes and organic matter to improve soil fertility and increase crop productivity.
The evaluation of the effectiveness of phosphate solvent microbes and organic matter in improving soil fertility and increasing crop productivity in different types of soil.
The development of strategies to improve the availability and accessibility of phosphate solvent microbes and organic matter to local farmers.

Limitations of the Study

This study has several limitations, including:

The study was conducted in a limited area and may not be representative of other areas affected by volcanic eruption.
The study only focused on the effects of phosphate solvent microbes and organic matter on phosphorus absorption and potato plant growth, and did not consider other factors that may affect soil fertility and crop productivity.

Conclusion

In conclusion, this study has shown that the application of phosphate solvent microbes and organic matter can significantly increase the absorption of P and potato plant growth in Andisol soil affected by the eruption of Mount Sinabung. The implementation of agricultural technology that utilizes microbes and organic matter can potentially be a solution to improve soil fertility and increase crop productivity in eruption affected areas.
Frequently Asked Questions (FAQs) about the Application of Phosphate Solvent Microbes and Organic Material Sources to Increase the Absorption of P and Potato Plant (Solanum Tuberosum L.) on Andisol Soils Affected by the Eruption of Mount Sinabung

Q: What is the purpose of this study?

A: The purpose of this study is to explore the effects of phosphate solvent microbial applications and sources of organic matter on phosphorus absorption (P) and the growth of potato plants (solanum tuberosum L.) in Andisol soil affected by the eruption of Mount Sinabung.

Q: What is Andisol soil?

A: Andisol soil is a type of soil that is rich in minerals and generally has good agricultural capacity. However, it can experience quality degradation due to volcanic activity, including the eruption of Mount Sinabung.

Q: What are phosphate solvent microbes?

A: Phosphate solvent microbes are microorganisms that play an important role in increasing the availability of essential phosphorus for plants. They help to break down phosphorus compounds in the soil, making it more available to plants.

Q: What are the benefits of using phosphate solvent microbes and organic matter?

A: The benefits of using phosphate solvent microbes and organic matter include:

Increased phosphorus absorption by plants
Improved soil fertility
Increased crop productivity
Improved soil structure
Increased water retention capacity
Enriched soil microbial activity

Q: What are the different types of organic matter used in this study?

A: The different types of organic matter used in this study include:

Cow dung
Chicken manure
Rice straw
Diversifolia tithonia

Q: How do phosphate solvent microbes and organic matter interact with each other?

A: Phosphate solvent microbes and organic matter interact with each other in a synergistic way. The microbes help to break down the organic matter, making it more available to plants. At the same time, the organic matter provides a source of nutrients for the microbes, which helps to increase their activity and effectiveness.

Q: What are the limitations of this study?

A: The limitations of this study include:

The study was conducted in a limited area and may not be representative of other areas affected by volcanic eruption.
The study only focused on the effects of phosphate solvent microbes and organic matter on phosphorus absorption and potato plant growth, and did not consider other factors that may affect soil fertility and crop productivity.

Q: What are the recommendations for future research?

A: The recommendations for future research include:

The development of new agricultural technologies that utilize microbes and organic matter to improve soil fertility and increase crop productivity.
The evaluation of the effectiveness of phosphate solvent microbes and organic matter in improving soil fertility and increasing crop productivity in different types of soil.
The development of strategies to improve the availability and accessibility of phosphate solvent microbes and organic matter to local farmers.

Q: What are the implications of this study for agricultural practices?

A: The implications of this study for agricultural practices include:

The use of phosphate solvent microbes and organic matter as a strategy to improve soil fertility and increase crop productivity in eruption affected areas.
The development of agricultural technology that utilizes microbes and organic matter to improve soil fertility and increase crop productivity.
The provision of training and education to local farmers on the use of phosphate solvent microbes and organic matter to improve soil fertility and increase crop productivity.

Q: What are the potential applications of this study?

A: The potential applications of this study include:

Improving soil fertility and increasing crop productivity in eruption affected areas.
Developing new agricultural technologies that utilize microbes and organic matter to improve soil fertility and increase crop productivity.
Providing training and education to local farmers on the use of phosphate solvent microbes and organic matter to improve soil fertility and increase crop productivity.