Growth and Production of Samosir Local Shallots in Various Sizes of Containers and NPK Doses

Oct 13, 2025 by wbrum.org 71 views

Growth and Production of Samosir Local Shallots in Various Sizes of Containers and NPK Doses

Introduction

Shallots (Allium Cepa L.) are one of the most widely cultivated crops in the world, and their production is an essential component of food security in many regions. In Indonesia, shallots are a staple crop in many areas, including the Samosir region. However, the production of shallots in this region is often hampered by various factors, including the lack of optimal cultivation practices. In this study, we aimed to investigate the effect of container size and NPK fertilizer dose on the growth and production of Samosir local shallots.

Background

Shallots are a type of bulbous plant that belongs to the Allium family. They are widely cultivated for their edible bulbs, which are used as a flavoring agent in many dishes. Shallots are a cool-season crop that requires well-drained soil and full sun to grow. In the Samosir region, shallots are typically grown in small-scale farms, where farmers use traditional cultivation practices that may not be optimal for maximizing production.

Research Methodology

This study was conducted at the Greenhouse of the Faculty of Agriculture, University of North Sumatra, Medan, from August to November 2016. The research design used was a factorial random group design with two factors: container size and NPK fertilizer dose. The container sizes used were W1 (15 cm), W2 (20 cm), W3 (25 cm), and W4 (30 cm). The NPK fertilizer doses used were N0 (0 grams), N1 (0.5 grams), N2 (1 gram), N3 (1.5 grams), and N4 (2 grams).

Results

The results of this study showed that the size of the container had a significant effect on plant height, number of leaves, and wet weight of onion plants. However, the size of the container did not show a significant effect on the number of children, stem diameter, and dry weight. The interaction between the size of the container and NPK dose also had a significant effect on plant height, number of leaves, and wet weight, but did not have a significant effect on the number of children, stem diameter, and dry weight.

Discussion

The success of the growth of shallots is inseparable from various environmental factors, one of which is the size of the right container and fertilization. The size of the container can affect the root capacity in absorbing water and nutrients. Larger containers allow roots to develop more broadly, so plants can get more nutrients and water. This is reflected in the results that indicate an increase in plant height and number of leaves.

In terms of fertilization, the NPK dose is very important in providing the nutrients needed by plants for optimal growth. In this study, the use of proper NPK doses can also increase the production of shallots. However, doses that are too high or low can inhibit growth, because it can cause nutritional imbalances.

It is important to note that although there is a positive effect of the size of the container and NPK dose on several growth parameters, not all variables show significant results. This shows complexity in plant growth, where many other factors, such as soil humidity, light, and climate conditions, also affect.

Conclusion

This study provides useful insights for farmers and researchers in improving the practice of onion cultivation, especially in the Samosir area. Optimizing the size of the appropriate NPK fertilizer container and dose can be an effective strategy for increasing local onion agricultural output. By applying the results of this study, it is expected that the productivity of shallots can increase, so as to support food security in the region.

Recommendations

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

Use larger containers (W3 and W4) to increase plant height and number of leaves.
Use proper NPK doses (N2 and N3) to increase production of shallots.
Avoid using high or low NPK doses, as it can cause nutritional imbalances.
Consider other factors, such as soil humidity, light, and climate conditions, when optimizing cultivation practices.

Future Research Directions

This study provides a foundation for further research on the growth and production of shallots in the Samosir region. Future studies can investigate the effect of other factors, such as soil type, irrigation, and pest management, on the growth and production of shallots. Additionally, studies can be conducted to investigate the economic feasibility of optimizing container size and NPK fertilizer dose in shallot cultivation.

Limitations of the Study

This study has several limitations, including:

The study was conducted in a controlled environment (greenhouse), which may not reflect the actual conditions in the field.
The study only investigated the effect of container size and NPK fertilizer dose on the growth and production of shallots, and did not consider other factors that may affect plant growth.
The study was conducted over a short period of time (3 months), which may not be representative of the entire growing season.

Conclusion

In conclusion, this study provides useful insights for farmers and researchers in improving the practice of onion cultivation, especially in the Samosir area. Optimizing the size of the appropriate NPK fertilizer container and dose can be an effective strategy for increasing local onion agricultural output. By applying the results of this study, it is expected that the productivity of shallots can increase, so as to support food security in the region.
Frequently Asked Questions (FAQs) about the Growth and Production of Samosir Local Shallots in Various Sizes of Containers and NPK Doses

Q: What is the purpose of this study? A: The purpose of this study is to investigate the effect of container size and NPK fertilizer dose on the growth and production of Samosir local shallots.

Q: What are the factors that were studied in this research? A: The two factors that were studied in this research are container size and NPK fertilizer dose. The container sizes used were W1 (15 cm), W2 (20 cm), W3 (25 cm), and W4 (30 cm). The NPK fertilizer doses used were N0 (0 grams), N1 (0.5 grams), N2 (1 gram), N3 (1.5 grams), and N4 (2 grams).

Q: What were the results of this study? A: The results of this study showed that the size of the container had a significant effect on plant height, number of leaves, and wet weight of onion plants. However, the size of the container did not show a significant effect on the number of children, stem diameter, and dry weight. The interaction between the size of the container and NPK dose also had a significant effect on plant height, number of leaves, and wet weight, but did not have a significant effect on the number of children, stem diameter, and dry weight.

Q: What are the implications of this study? A: The implications of this study are that optimizing the size of the container and NPK fertilizer dose can be an effective strategy for increasing local onion agricultural output. By applying the results of this study, it is expected that the productivity of shallots can increase, so as to support food security in the region.

Q: What are the limitations of this study? A: The limitations of this study are that it was conducted in a controlled environment (greenhouse), which may not reflect the actual conditions in the field. Additionally, the study only investigated the effect of container size and NPK fertilizer dose on the growth and production of shallots, and did not consider other factors that may affect plant growth.

Q: What are the recommendations of this study? A: The recommendations of this study are to use larger containers (W3 and W4) to increase plant height and number of leaves. Additionally, using proper NPK doses (N2 and N3) can increase production of shallots. It is also recommended to avoid using high or low NPK doses, as it can cause nutritional imbalances.

Q: What are the future research directions of this study? A: The future research directions of this study are to investigate the effect of other factors, such as soil type, irrigation, and pest management, on the growth and production of shallots. Additionally, studies can be conducted to investigate the economic feasibility of optimizing container size and NPK fertilizer dose in shallot cultivation.

Q: What are the potential applications of this study? A: The potential applications of this study are in the field of agriculture, particularly in the cultivation of shallots. The results of this study can be used by farmers and researchers to optimize the cultivation practices of shallots, leading to increased productivity and food security.

Q: What are the potential benefits of this study? A: The potential benefits of this study are that it can lead to increased productivity and food security in the region. Additionally, the study can provide valuable insights for farmers and researchers in improving the practice of onion cultivation, especially in the Samosir area.

Q: What are the potential challenges of this study? A: The potential challenges of this study are that it may be difficult to replicate the results of this study in the field, due to the controlled environment in which it was conducted. Additionally, the study may not consider other factors that may affect plant growth, such as soil type, irrigation, and pest management.

Q: What are the potential future developments of this study? A: The potential future developments of this study are that it can lead to the development of new cultivation practices for shallots, such as the use of larger containers and optimized NPK fertilizer doses. Additionally, the study can provide valuable insights for farmers and researchers in improving the practice of onion cultivation, especially in the Samosir area.