PENGELOLAAN LAHAN RAWA LEBAK DENGAN SISTEM POLDER

Summary

This video introduces an innovative land and water management system called the folder system, developed in South Sumatra for agricultural development. The system utilizes a dike pattern to manage excess water through channels, drains, and pumps, ensuring that water is stored and utilized efficiently for irrigation. This approach aims to improve soil conditions, particularly in swamp areas with high acidity, by incorporating land washing, liming, and the use of biocar for soil fertility. Over time, the system has helped achieve increasing rice yields, reaching up to 4 tons per hectare. The method is mechanized and designed for local farmers to adopt and manage independently.

Takeaways

• 😀 The Polder System is an innovative water and land management technology developed in South Sumatra, particularly for agricultural purposes in swampy areas.
• 😀 It involves building dikes around rice fields, creating drainage channels, and using water pumps to manage water levels effectively.
• 😀 The system helps control excess water during heavy rains by storing it in temporary reservoirs and releasing it during dry periods for irrigation.
• 😀 The Polder System minimizes water wastage by ensuring that water is stored in collector channels for later use in agricultural fields.
• 😀 It takes several years for the system to fully improve soil quality, especially due to the acidic nature of the land when it is first developed.
• 😀 The system requires land reclamation, including washing the soil to remove acidic substances, and is usually followed by liming and fertilization.
• 😀 Farmers in the area have seen increased crop yields over time, with rice production rising from 2-3 tons per hectare in early years to 4 tons per hectare after 10 years.
• 😀 The system is mechanized, with agricultural tools used for land cultivation, sowing, and harvesting, making farming more efficient.
• 😀 Biocar, a soil conditioner made from charcoal produced from rice husks, is used to improve soil fertility and increase the pH of the soil over time.
• 😀 The polder system requires a balance of water management, as water is discharged into rivers during excess water events and stored for future use during dry seasons.

Q & A

What is the folder system used in South Sumatra's agricultural development?

The folder system is a water management technology involving the construction of surrounding dikes, a main drainage channel, and collector channels for temporary water storage. It ensures efficient water use in agriculture, storing excess water during the rainy season and providing irrigation during dry periods.

How does the folder system manage water during excess rainfall?

During excess rainfall, the water is collected in the collector channels. If the water level in the collector exceeds capacity, it is discharged into a river. The system uses a pump to move water as needed, either to storage or to fields requiring irrigation.

What role do the surrounding dikes play in the folder system?

The surrounding dikes form the boundary of the farming area. They channel excess water to the main drainage system and help prevent flooding by containing water within the agricultural area.

What are the initial steps required when opening new swamp land for agriculture?

The initial steps include building the surrounding dikes, excavating drainage channels, and addressing the acidic content in the soil by washing and liming the land. This process is vital for preparing the land for effective crop production.

Why is liming important in the folder system's water management?

Liming is important for neutralizing acidic substances in the soil, which are common in swamp areas. It improves soil quality and enhances the effectiveness of fertilization and water management, especially during the initial stages of land reclamation.

What is biocar and how does it improve soil fertility in the folder system?

Biocar is a soil conditioner made by burning rice husks to create charcoal, which is then used to improve soil fertility. It raises soil pH and enhances soil structure, helping to improve overall crop production over time.

What are the expected crop yields when using the folder system in South Sumatra?

Initially, crop yields may be low, around 2-3 tons per hectare. However, after 6 years of soil improvement and management, yields can reach 5 tons per hectare. In some cases, yields may approach 4 tons per hectare by the 10th year.

How is the folder system mechanized to assist farmers in land preparation and planting?

The folder system incorporates mechanized tools for land leveling, sowing seeds, and harvesting. Farmers use tools such as doser machines for leveling and pumps to distribute water efficiently across the fields.

How is water stored and distributed in the folder system during dry seasons?

During the dry season, water stored in collector channels is used for irrigation. Water is temporarily stored in these channels and then distributed via a tertiary channel to the fields in need of water.

How does the folder system manage water quality for agriculture?

The folder system ensures good water quality by directing water through proper filtration and drainage channels, preventing contaminants from affecting crop growth. It helps maintain suitable conditions for rice cultivation.