Recommended Dose of Fertilizer

Oct 13, 2025 by windailys.com 24 views

Introduction

Increasing rice production in Indonesia is a crucial step in achieving national food security. One of the reliable superior varieties is Situ Bagendit, known for its ability to adapt in various conditions. However, the challenge arises when this variety is planted in a dry climate zone, where the availability of water and nutrients is a limiting factor. This research, led by Dr. Dra. Ir. Chairani Hanum MS, examines the effect of fertilizing N, P, K, and SI on the growth and production of Situ Bagendit in the dry climate zone E (Oldeman Classification).

Background

Rice production in Indonesia is a significant contributor to the country's food security. The government has set a target to increase rice production to meet the growing demand. One of the reliable superior varieties is Situ Bagendit, which has been widely cultivated in various regions. However, the dry climate zone poses a significant challenge to rice production, as it limits the availability of water and nutrients. This research aims to investigate the effect of fertilizing N, P, K, and SI on the growth and production of Situ Bagendit in the dry climate zone E.

Methodology

This research was conducted in Percut Sei Tuan District, Deli Serdang Regency, Medan City, North Sumatra Province with a height of ± 20 meters above sea level, lasting during October 2022 to January 2023. The method used was a random design group (RAK) with one factor and three replications. Situ Bagendit was given the treatment of fertilizing urea, TSP, KCL, and granular silica with four levels, namely 100%, 66%, 33%, and 0% of the recommendation dose.

Results

The results showed that the fertilization of N, P, K, and SI had a significant effect on Situ Bagendit's growth and production. There is an increase in the root volume, the dry weight of the roots/stems in the vegetative phase, and the percentage of vacuum seeds. However, several other variables such as plant height, number of leaves, flag leaves, root and stem wet weight, dry weight and roots in the generative phase, flowering age and harvesting, the number of productive puppies, weighing 1000 grains, and the weight of dry grain does not show a positive response to fertilization treatment.

Discussion

Increased root volume and root/stem dry weight in the vegetative phase shows that fertilization of N, P, K, and SI can increase the ability of plants to absorb nutrients and water, so that vegetative growth is more optimal. However, this does not continue to the generative phase, which indicates that fertilization has not been able to overcome other limiting factors in the dry climate zone, such as water stress or other micronutrients.

The percentage of empty seeds that increase may be caused by several factors, such as limited water availability, less optimal pollination, or pest and disease attacks. This needs to be further investigated to determine the main causing factors and the right solution.

Recommendation

It needs to be further examined regarding the optimal dose and time of fertilizer application for Situ Bagendit in the dry climate zone, in order to maximize growth and production.
Additional research needs to be done to identify other limiting factors in the dry climate zone and the right solution to overcome them.
The application of water and soil conservation technology and the use of organic fertilizer can help increase the resistance of Situ Bagendit to dry conditions and increase the efficiency of the use of nutrients.

Conclusion

This study provides valuable information about the potential of Situ Bagendit in the dry climate zone E. By understanding the factors that affect growth and production, it is hoped that appropriate management strategies can be produced to increase rice productivity and resistance in dry areas.

Limitation

This study has several limitations. Firstly, the research was conducted in a specific location, and the results may not be applicable to other regions. Secondly, the study only focused on the effect of fertilizing N, P, K, and SI on the growth and production of Situ Bagendit, and did not investigate other factors that may affect rice production in the dry climate zone.

Future Research

Future research should focus on identifying other limiting factors in the dry climate zone and developing strategies to overcome them. Additionally, research should be conducted to investigate the optimal dose and time of fertilizer application for Situ Bagendit in the dry climate zone.

Oldeman Classification

Oldeman Classification is a climate classification system developed by Dr. Ir. R. Oldeman to describe climate characteristics in Indonesia. The dry climate zone E (oldman) is a zone with low rainfall and long dry period.

Recommended Dose of Fertilizer

Recommended dose of fertilizer is the amount of fertilizer recommended for each plant based on soil needs and characteristics.

Granular Silica

Granular silica is a fertilizer that contains silica (SiO2) that is useful for increasing plant resistance to stress, such as drought and disease pest attacks.

Conclusion

In conclusion, this study provides valuable information about the potential of Situ Bagendit in the dry climate zone E. By understanding the factors that affect growth and production, it is hoped that appropriate management strategies can be produced to increase rice productivity and resistance in dry areas.

Introduction

In our previous article, we discussed the potential of Situ Bagendit in the dry climate zone E, and the effect of fertilizing N, P, K, and SI on its growth and production. In this article, we will answer some of the frequently asked questions related to this topic.

Q: What is Situ Bagendit?

A: Situ Bagendit is a reliable superior variety of rice that has been widely cultivated in various regions. It is known for its ability to adapt in various conditions.

Q: What is the dry climate zone E?

A: The dry climate zone E is a zone with low rainfall and long dry period, as classified by Dr. Ir. R. Oldeman.

Q: What is the effect of fertilizing N, P, K, and SI on Situ Bagendit's growth and production?

A: The fertilization of N, P, K, and SI has a significant effect on Situ Bagendit's growth and production. There is an increase in the root volume, the dry weight of the roots/stems in the vegetative phase, and the percentage of vacuum seeds.

Q: What are the limitations of this study?

A: This study has several limitations. Firstly, the research was conducted in a specific location, and the results may not be applicable to other regions. Secondly, the study only focused on the effect of fertilizing N, P, K, and SI on the growth and production of Situ Bagendit, and did not investigate other factors that may affect rice production in the dry climate zone.

Q: What are the recommendations for future research?

A: Future research should focus on identifying other limiting factors in the dry climate zone and developing strategies to overcome them. Additionally, research should be conducted to investigate the optimal dose and time of fertilizer application for Situ Bagendit in the dry climate zone.

Q: What is the importance of understanding the factors that affect growth and production of Situ Bagendit in the dry climate zone E?

A: Understanding the factors that affect growth and production of Situ Bagendit in the dry climate zone E is crucial for developing appropriate management strategies to increase rice productivity and resistance in dry areas.

Q: What are the potential benefits of using Situ Bagendit in the dry climate zone E?

A: The potential benefits of using Situ Bagendit in the dry climate zone E include increased rice productivity, improved resistance to dry conditions, and increased efficiency of the use of nutrients.

Q: What are the potential challenges of using Situ Bagendit in the dry climate zone E?

A: The potential challenges of using Situ Bagendit in the dry climate zone E include limited water availability, less optimal pollination, and pest and disease attacks.

Q: What is the role of fertilizers in improving rice productivity in the dry climate zone E?

A: Fertilizers play a crucial role in improving rice productivity in the dry climate zone E by providing essential nutrients to the plants, which can help to increase growth and production.

Q: What are the potential risks of over-fertilization in the dry climate zone E?

A: The potential risks of over-fertilization in the dry climate zone E include environmental pollution, soil degradation, and negative impacts on human health.

Q: What are the potential benefits of using organic fertilizers in the dry climate zone E?

A: The potential benefits of using organic fertilizers in the dry climate zone E include improved soil health, increased crop yields, and reduced environmental pollution.

Conclusion

In conclusion, this Q&A article provides valuable information about the potential of Situ Bagendit in the dry climate zone E, and the effect of fertilizing N, P, K, and SI on its growth and production. We hope that this article will help to answer some of the frequently asked questions related to this topic.