Student Research Reports
The effect of irrigation with fish-breeding pond water on soil properties
Organization(s):Asma bint aomis basic school
Country:Oman
Student(s):Jomana Jamal Alfarsi
Rahaf Thowaini Alfarsi
Grade Level:Middle School (grades 6-8, ages 11-14)
GLOBE Teacher:hedaya alfarsy
Contributors:
Report Type(s):International Virtual Science Symposium Report
Protocols:Conductivity, Dissolved Oxygen, Salinity, Water Temperature, Water Transparency, pH, Soil Characterization
Presentation Poster:
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Optional Badges:I am a Collaborator, I am a Data Scientist, I work with a STEM Professional
Language(s):English
Date Submitted:03/09/2020
Our research aims to study the effect of irrigation with fish-breeding pond water on soil properties. We raised the following questions:
1 - What is the impact of fish waste on the properties of water?
2 – How do soil properties (acidity, salinity and conductivity) get affected when irrigating with the fish-breeding pond water?
To answer the first question, we applied water protocol on two samples of water. One before adding the fish to the water pond and the other after adding the fish. In addition, to answer the second question, we have collected soil samples before adding fish to the water pond and then two months after adding fish to the pond .We applied soil protocol to study the properties of each sample, in terms of acidity, salinity and conductivity.
The results indicated that the properties of the water change in terms of Ph, salinity and conductivity. The reason behind that is due to fish waste that contains mineral elements, which led to an increase in salinity and conductivity of the pond water. Moreover, the percentage of dissolved Oxygen increased from 2 to 8 due to the growth of algae in the pond water, which produces large quantities of Oxygen.
Furthermore, the soil properties changed after adding fish to the pond water, it became less salty and arable land due to the nutrients found in fish waste.
Therefore, we recommend adopting this method in line with hydroponics in order to rationalize water consumption and use fish wastes as an alternative to chemical fertilizers.
Key terms:
- Fish waste: is the organic matter that fish excrete in water.
- Aquaculture: is the practice of fish farming together with the cultivation of plants in water without soil.