Pond Water Fertilization – 01 - Background

Existence of planktons especially from phytoplankton type within pond water ecosystem have a very big role to stability and water productivity which very required by the organism residing in the depth in doing its life activities. Especial role and function of plankton (phytoplankton) within water able to be made as base consideration with water quality management are, among others:

1. Phytoplankton is especial producer in enchaining the food there are in water ecosystem, so that its productivity level will affected to water productivity.
   
   
2. Phytoplankton is one of the oxygen supplier through photosynthesis process with the sun’s rays constructively that required by other organism to do respiration within water.
   
   
3. Oxygen (O2) that produced by phytoplankton can depress the happening of the water chemistry process that having the character of the poison and endanger for shrimps and other organisms.
   
   
4. Phytoplankton is a shelter for the shrimp that having the character of nocturnal and negative photo taxis.

As like have been mentioned above description as a plant type, phytoplankton has chlorophyll (green of leaf) that play a part in the photosynthesis process in water with constructively sun’s rays. Productivity level of phytoplankton determined by availability of nutrient element that availableness in pond both for coming from soil and local water. At some condition phytoplankton require the nutrient element supply and others both for having the character of organic and an organic to race improvement of its productivity within water.

Fertilization of pond water basically is one of the technical treatment in the form of giving an organic manure and an organic for the supply of required essences to phytoplankton within pond water with dose as according with need level. The objectives of fertilization are among others:

1. Arrange and control the pond water transparency so that as according with shrimp need/requirement level.
   
   
2. Arrange and control plankton stability within pond water so that as according with shrimp need/requirement level.
   
   
3. Stimulate plankton seed growth within water which be improving it’s quality.

The main condition to conduct pond water fertilization is availability of plankton seed and existence of sun’s rays. The fertilization that conducted to pond water that have very minimized plankton seed water can generate the growing of moss in pond or appearance camouflage color that its very have an effect to prawn condition or technical of shrimp culture.

Sun’s rays is very required in activity of fertilization of pond water that is to stimulate the process plankton photosynthesis so that essence supply in the fertilizer can be permeated by plankton and stimulate it growth. Based on the rationale hence fertilization is better conducted in the morning at the fine weather. [At] wheather condition not fine/rainy season, the activity of fertilization is better conducted routinely with appropriate dose in order to avoid mass plankton mortality which caused by the high rainfall, so that stability pond water will fixed awake from collapse condition

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