Response To The Growth And Production Of Soybeans (glycine Max L.) To Biological Fertilizer And Liquid Organic Fertilizer From Tofu Liquid Waste

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Response to the Growth and Production of Soybeans (Glycine max L.) to Biological Fertilizer and Liquid Organic Fertilizer from Tofu Liquid Waste

Introduction

Soybean production in Indonesia is still relatively low, primarily due to the lack of farmers' knowledge about technology that supports sustainable agricultural practices, as well as reduced agricultural land that can be processed due to continuous use of inorganic fertilizer. This study aims to determine the response of soybean growth and production to the application of biological fertilizer and liquid organic fertilizer originating from tofu liquid waste.

Background

Soybean is one of the most important crops in Indonesia, providing a significant source of protein for the community. However, the production of soybeans in Indonesia is still relatively low compared to other countries. This is due to several factors, including the lack of knowledge about sustainable agricultural practices, reduced agricultural land, and the continuous use of inorganic fertilizers. Inorganic fertilizers can have negative impacts on the environment and human health, making it essential to explore alternative and sustainable methods of fertilization.

Methodology

This study was conducted in Sunggal District, Deli Serdang from November 2014 to January 2015, using a Double Factors Random Block Experiment Design. The two main factors tested in this study are the use of biological fertilizer (without and with biological fertilizer) and the dose of liquid organic fertilizer from tofu liquid waste (0, 15, 30, 45, and 60 ml/L). Observed parameters include plant height, stem diameter, total leaf area, effective root nodule, effective nodule weight, canopy dry weight, number of pods per plant, empty number per plant, dry weight of seeds per plant, dry weight of seeds per plot, and the dry weight of 100 seeds.

Results

The results of this study showed that the provision of biological fertilizer can increase the number of effective root nodules, effective nodules, canopy dry weight, root dry weight, and the number of empty pods per plant. In addition, the use of liquid organic fertilizer from tofu liquid waste also contributes to an increase in the number of effective root nodules, effective nodules, canopy dry weight, root dry weight, and the number of pods and dry seeds per plant. The interaction between the treatment of biological fertilizers and liquid organic fertilizer is proven to increase the number of empty pods per plant.

Discussion

The application of biological fertilizer and liquid organic fertilizer from tofu waste has a significant impact on soybean growth. Biological fertilizer serves to improve soil quality and increase useful microorganism activity, thus allowing soybean plants to get nutrients more effectively. This fertilizer also helps in the formation of root nodules, which is important for the process of nitrogen fixation, thereby increasing soil fertility naturally.

On the other hand, liquid organic fertilizer derived from tofu liquid waste has a good nutritional content for plant growth. Tofu liquid waste contains nitrogen, phosphorus, and potassium needed by plants. Provision of the right dose of organic fertilizer is able to encourage root and canopy growth, and increase the number of pods that can be produced.

However, it is essential to record that the interaction between the two types of fertilizer can affect agricultural products. The selection of the right dosage and combination is very important to maximize results. This study also shows that, although there is a significant increase in soybean growth and results, there is also an increase in the number of empty pods, which indicate that other factors such as pests, diseases, and cultivation management need to be considered to achieve optimal results.

Conclusion

By utilizing biological fertilizer and liquid organic fertilizer from waste, farmers in Indonesia can reduce dependence on inorganic chemical fertilizers, increase the sustainability of agricultural practices, and ultimately increase soybean production which is an important commodity for the community. The use of environmentally friendly agricultural technology is very supportive to create more sustainable agriculture and improve the welfare of farmers.

Recommendations

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

  1. Use of biological fertilizer: The use of biological fertilizer can improve soil quality and increase useful microorganism activity, thus allowing soybean plants to get nutrients more effectively.
  2. Use of liquid organic fertilizer: The use of liquid organic fertilizer from tofu liquid waste can provide a good nutritional content for plant growth, encouraging root and canopy growth, and increasing the number of pods that can be produced.
  3. Selection of the right dosage and combination: The selection of the right dosage and combination of biological fertilizer and liquid organic fertilizer is very important to maximize results.
  4. Consideration of other factors: Other factors such as pests, diseases, and cultivation management need to be considered to achieve optimal results.

Future Research Directions

Future research directions can include:

  1. Long-term study: A long-term study can be conducted to evaluate the effects of biological fertilizer and liquid organic fertilizer on soybean growth and production over a longer period.
  2. Different types of soybeans: Different types of soybeans can be used to evaluate the effects of biological fertilizer and liquid organic fertilizer on soybean growth and production.
  3. Different types of liquid organic fertilizer: Different types of liquid organic fertilizer can be used to evaluate the effects of biological fertilizer and liquid organic fertilizer on soybean growth and production.

Limitations of the Study

This study has several limitations, including:

  1. Small sample size: The sample size of this study is relatively small, which may limit the generalizability of the results.
  2. Limited number of parameters: The number of parameters observed in this study is limited, which may not provide a comprehensive understanding of the effects of biological fertilizer and liquid organic fertilizer on soybean growth and production.
  3. Limited duration of the study: The duration of this study is relatively short, which may not provide a comprehensive understanding of the long-term effects of biological fertilizer and liquid organic fertilizer on soybean growth and production.
    Frequently Asked Questions (FAQs) about Response to the Growth and Production of Soybeans (Glycine max L.) to Biological Fertilizer and Liquid Organic Fertilizer from Tofu Liquid Waste

Q: What is the purpose of this study? A: The purpose of this study is to determine the response of soybean growth and production to the application of biological fertilizer and liquid organic fertilizer originating from tofu liquid waste.

Q: What are the main factors tested in this study? A: The two main factors tested in this study are the use of biological fertilizer (without and with biological fertilizer) and the dose of liquid organic fertilizer from tofu liquid waste (0, 15, 30, 45, and 60 ml/L).

Q: What are the observed parameters in this study? A: The observed parameters in this study include plant height, stem diameter, total leaf area, effective root nodule, effective nodule weight, canopy dry weight, number of pods per plant, empty number per plant, dry weight of seeds per plant, dry weight of seeds per plot, and the dry weight of 100 seeds.

Q: What are the results of this study? A: The results of this study showed that the provision of biological fertilizer can increase the number of effective root nodules, effective nodules, canopy dry weight, root dry weight, and the number of empty pods per plant. In addition, the use of liquid organic fertilizer from tofu liquid waste also contributes to an increase in the number of effective root nodules, effective nodules, canopy dry weight, root dry weight, and the number of pods and dry seeds per plant.

Q: What is the significance of this study? A: This study is significant because it provides evidence that the use of biological fertilizer and liquid organic fertilizer from tofu liquid waste can improve soybean growth and production. This is important because it can help reduce dependence on inorganic chemical fertilizers and increase the sustainability of agricultural practices.

Q: What are the limitations of this study? A: The limitations of this study include a small sample size, limited number of parameters, and limited duration of the study.

Q: What are the recommendations of this study? A: The recommendations of this study include the use of biological fertilizer and liquid organic fertilizer from tofu liquid waste, selection of the right dosage and combination, and consideration of other factors such as pests, diseases, and cultivation management.

Q: What are the future research directions of this study? A: The future research directions of this study include long-term study, different types of soybeans, and different types of liquid organic fertilizer.

Q: What are the potential applications of this study? A: The potential applications of this study include the use of biological fertilizer and liquid organic fertilizer from tofu liquid waste in soybean production, which can help reduce dependence on inorganic chemical fertilizers and increase the sustainability of agricultural practices.

Q: What are the potential benefits of this study? A: The potential benefits of this study include improved soybean growth and production, reduced dependence on inorganic chemical fertilizers, and increased sustainability of agricultural practices.

Q: What are the potential challenges of this study? A: The potential challenges of this study include the need for further research to confirm the results, the potential for variability in results depending on factors such as climate and soil type, and the need for education and training for farmers on the use of biological fertilizer and liquid organic fertilizer from tofu liquid waste.

Q: What are the potential implications of this study? A: The potential implications of this study include the potential for widespread adoption of biological fertilizer and liquid organic fertilizer from tofu liquid waste in soybean production, which can help reduce dependence on inorganic chemical fertilizers and increase the sustainability of agricultural practices.