Science Project
Pandansimo, Bantul, Indonesia
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1999 - Now

Project Background

The increasing demands for food due to the increase population open up opportunities to develop agriculture. In agribusiness, opening more fields can increase food production. One of the ways to add more arable fields is by using marginal lands. One example for the development is the sandy beaches of Yogyakarta’s south coast.

Sandy coastal lands have a large potential to support the development of agribusiness. These lands possess several advantages, such as flat and wide open spaces, rare flooding, plentiful sunrays, and shallow water table. In addition, sandy coastal lands do not require too much preparation, just with simple beds with shallow canals, and thus land management is relatively simple.

The Challenge

Sand with low productivity



high porosity

The Handiworks

Physical, Biological, and Chemical Improvements of the Soil

In anticipating the low availability of organic materials in sandy soil, efforts are needed to increase physical, biological, and chemical characteristics of the soil. Indmira uses four types of our own organic fertilizers; F4, SNN, SAN Tanaman, dan Pembenah Tanah. Applications are undertaken by softening the soil; saturating it with water, letting it sit and keeping it humid for two weeks. After two weeks, the land is ready for use. Soil improvement is conducted by giving a special formulation for sandy soil so that it becomes productive and possesses nutrients needed by the plants.

Wind barier

High winds containing high salinity are one of the main challenges in the sandy coastal lands. Wind breakers function as brakes to reduce high winds. Temporary wind breakers can consist of woven sugar cane or coconut leaves, nylon mesh, nets, and plastic sheets. On the other hand, permanent wind breakers can be composed of perennial plants that have long lives and can be controlled. Casuariana provides the answer for these needs and has been used by Indmira.

Non-permeable Layer

To prevent water infiltration, this layer is used to increase water retention in sandy soil. Non-permeable layer utilizes plastic sheets, concrete or other water tight materials and is produced by excavating a plot, applying the non-permeable layer, and returning the sand. The non-permeable layer is only needed for water-demanding plants like rice. As for drought resistant plants, this layer is not necessary


The lack water in a sandy soil can be solved by drilling wells near the agricultural lands. Water table in this soil type is quite high, and thus it is simple.


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