Improving Irrigation Systems: Plastic Bottle Drip Irrigation Phase One

Improving Irrigation Systems: Plastic Bottle Drip Irrigation Phase One

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We are testing whether a plastic bottle drip irrigation system will help farmers grow crops during the usually barren dry season in Flores.


Farmers in Flores have difficulty growing enough food for their daily minimum needs during the eight-month dry season. The majority of households in Flores depend on subsistence farming. Maize is their main food staple, and more than 60 percent of families grow maize and cassava for their own consumption. 

However, it is difficult for farmers to grow sufficient crops during the long dry season due to water shortages and a lack of functional irrigation systems. Although 24 percent of farmers have access to some kind of irrigation system, these do not help during the dry season because it is difficult to store water. Furthermore, the dry, rocky soil in many areas absorbs water quickly. When there is no rain, farmers must water their crops every day, which is impossible when rainwater cannot be stored from the wet season and well water is brackish. Instead, the farmers must rely on stored or purchased produce to fulfill their minimum daily needs. A better irrigation system is needed to alleviate hunger under drought conditions.


Kopernik will work with farmers in Kotauneng village in East Flores to test a system of drip irrigation using plastic bottles. This simple, accessible system needs 75 percent less water to grow maize. We will test the system with well water and three different crops. One crop will be selected for each of the following criteria: 

  • one crop which is familiar to the farmers and which they are used to consuming (in this case, this will likely be maize); 
  • one crop suited to the rocky, sandy soil; 
  • one drought-resistant crop. 

We will use 10 plastic bottle drip irrigation systems for each crop, or 30 in total. During a four-month period in the dry season, we will record the progress of the crops grown using the plastic bottle drip irrigation systems. The indicators we will measure are: 

  • the survival rate of the plants; 
  • their yield;
  • the volume of water used for irrigation. 

We will also calculate the average cost of production using the plastic bottle drip irrigation systems to see if it is a viable product for low-resource farmers.


We hypothesize that the plastic bottle drip irrigation system will allow farmers to produce food in drought conditions where they were previously unable to.

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This project is managed by Kopernik Solutions and implemented by PT Kopernik on behalf of our client.