The Effect of Fertilization

Oct 13, 2025 by magicalceylontours.com 74 views

Introduction

Soybean (Glycine max (L.) Merrill) is one of the most widely cultivated legumes in the world, and its production is crucial for food security and economic growth. However, soybean production is often limited by factors such as soil fertility, climate, and genetic potential of the varieties used. Fertilization with nitrogen and phosphorus is a common practice to improve soybean yields, but the optimal dose and timing of fertilization can vary depending on the variety and growing conditions. This study aims to examine the growth and production response of several soybean varieties to fertilizing nitrogen and phosphorus.

Research Methods

This study uses a random factorial group design with 2 factors, namely:

Soybean Varieties

Varietas Anjasmoro: This is a popular soybean variety in Indonesia, known for its high yield potential and good disease resistance.
Varietas Willis: This is another widely cultivated soybean variety in Indonesia, known for its good yield potential and adaptability to different growing conditions.

Konsentrasi Pupuk (Fertilizer Concentration)

K1: 50 kg/ha N, 30 kg/ha P: This treatment represents a moderate level of nitrogen and phosphorus fertilization.
K2: 50 kg/ha N, 60 kg/ha P: This treatment represents a higher level of phosphorus fertilization compared to K1.
K3: 50 kg/ha N, 90 kg/ha P: This treatment represents an even higher level of phosphorus fertilization compared to K2.
K4: 100 kg/ha N, 30 kg/ha P: This treatment represents a higher level of nitrogen fertilization compared to K1.
K5: 100 kg/ha N, 60 kg/ha P: This treatment represents a higher level of nitrogen fertilization compared to K2.
K6: 100 kg/ha N, 90 kg/ha P: This treatment represents an even higher level of nitrogen fertilization compared to K3.
K7: 150 kg/ha N, 30 kg/ha P: This treatment represents an even higher level of nitrogen fertilization compared to K4.
K8: 150 kg/ha N, 60 kg/ha P: This treatment represents an even higher level of nitrogen fertilization compared to K5.
K9: 150 kg/ha N, 90 kg/ha P: This treatment represents an even higher level of nitrogen fertilization compared to K6.
K10: 100 kg/ha N, 0 kg/ha P: This treatment represents a control treatment with no phosphorus fertilization.
K11: 0 kg/ha N, 60 kg/ha P: This treatment represents a control treatment with no nitrogen fertilization.

Results and Discussion

The results showed that fertilization treatment had a significant effect on flowering age, while varieties had a significant effect on plant height, flowering age, harvest age, number of pods, number of seeds, production results, and weight of 100 seeds. Interaction between factors has a significant effect on plant height at 4 MST (week after planting).

The Effect of Fertilization

Fertilization with nitrogen and phosphorus plays an important role in accelerating the flowering process in soybean plants. This shows that nutrients are needed for the development of plant reproductive organs. The results also showed that the optimal dose of nitrogen and phosphorus fertilization can vary depending on the variety and growing conditions.

Pengaruh Varietas (Effect of Varieties)

Varietas Anjasmoro and Willis showed significant differences in various aspects of growth and production. Anjasmoro varieties tend to have better plant height, flowering age, harvest age, number of pods, number of seeds, production results, and weight of 100 seeds. This shows that Anjasmoro varieties have superior genetic potential compared to Willis's variety.

Factor Interaction

Interaction between varieties and the concentration of fertilizer indicates that the response of plants to fertilization is influenced by its varieties. This shows that it is necessary to select varieties in accordance with the level of fertilization given to achieve optimal results.

Conclusion

This study shows that fertilizing nitrogen and phosphorus significantly affects the growth and production of soybean plants, especially at flowering age. Anjasmoro varieties have superior genetic potential compared to Willis varieties. To get optimal results, the selection of varieties and fertilization levels must be done appropriately.

Recommendation

Further research is needed to optimize the dose of nitrogen and phosphorus fertilization for each soybean variety.
It is important to consider other factors such as soil conditions, climate, and cultivation management to achieve optimal crop yields.

Future Directions

This study provides valuable insights into the growth and production response of soybean varieties to fertilizing nitrogen and phosphorus. Future research can build on this study by exploring the effects of other factors such as soil conditions, climate, and cultivation management on soybean yields. Additionally, further research is needed to optimize the dose of nitrogen and phosphorus fertilization for each soybean variety.

Q: What is the purpose of this study?

A: The purpose of this study is to examine the growth and production response of several soybean varieties to fertilizing nitrogen and phosphorus.

Q: What are the soybean varieties used in this study?

A: The soybean varieties used in this study are Varietas Anjasmoro and Varietas Willis.

Q: What are the fertilizer concentrations used in this study?

A: The fertilizer concentrations used in this study are:

K1: 50 kg/ha N, 30 kg/ha P
K2: 50 kg/ha N, 60 kg/ha P
K3: 50 kg/ha N, 90 kg/ha P
K4: 100 kg/ha N, 30 kg/ha P
K5: 100 kg/ha N, 60 kg/ha P
K6: 100 kg/ha N, 90 kg/ha P
K7: 150 kg/ha N, 30 kg/ha P
K8: 150 kg/ha N, 60 kg/ha P
K9: 150 kg/ha N, 90 kg/ha P
K10: 100 kg/ha N, 0 kg/ha P
K11: 0 kg/ha N, 60 kg/ha P

Q: What are the results of this study?

A: The results of this study show that fertilization treatment had a significant effect on flowering age, while varieties had a significant effect on plant height, flowering age, harvest age, number of pods, number of seeds, production results, and weight of 100 seeds. Interaction between factors has a significant effect on plant height at 4 MST (week after planting).

Q: What is the effect of fertilization on soybean plants?

A: Fertilization with nitrogen and phosphorus plays an important role in accelerating the flowering process in soybean plants. This shows that nutrients are needed for the development of plant reproductive organs.

Q: What is the effect of varieties on soybean plants?

A: Varietas Anjasmoro and Willis showed significant differences in various aspects of growth and production. Anjasmoro varieties tend to have better plant height, flowering age, harvest age, number of pods, number of seeds, production results, and weight of 100 seeds.

Q: What is the interaction between varieties and fertilizer concentrations?

A: Interaction between varieties and the concentration of fertilizer indicates that the response of plants to fertilization is influenced by its varieties. This shows that it is necessary to select varieties in accordance with the level of fertilization given to achieve optimal results.

Q: What are the implications of this study?

A: This study shows that fertilizing nitrogen and phosphorus significantly affects the growth and production of soybean plants, especially at flowering age. Anjasmoro varieties have superior genetic potential compared to Willis varieties. To get optimal results, the selection of varieties and fertilization levels must be done appropriately.

Q: What are the recommendations of this study?

A: Further research is needed to optimize the dose of nitrogen and phosphorus fertilization for each soybean variety. It is also important to consider other factors such as soil conditions, climate, and cultivation management to achieve optimal crop yields.

Q: What are the future directions of this study?

A: This study provides valuable insights into the growth and production response of soybean varieties to fertilizing nitrogen and phosphorus. Future research can build on this study by exploring the effects of other factors such as soil conditions, climate, and cultivation management on soybean yields. Additionally, further research is needed to optimize the dose of nitrogen and phosphorus fertilization for each soybean variety.