First, the role
1.Provides natural bait:Plankton in fertile water is a natural bait for crabs and can meet the nutritional needs of crabs during their growth.
2.Maintain stable water qualityAn appropriate amount of fertilized water can maintain the stability of the water quality of the crab pond and prevent the crabs from getting sick or dying due to the deterioration of the water quality.
3.Promotes crab growth:A good fertilizer and water environment can promote the metabolism of crabs, speed up their growth rate, and improve the efficiency of breeding.
2. Methodology
1.Choosing the Right Fertilizer:According to the specific situation of the crab pond, choose the appropriate fertilizer. We generally use: multi-effect fertilizer and water pioneer, rich in a variety of amino acids and trace elements and other nutrients, small molecules are easy to absorb, can be low temperature and rapid fertilizer water.
2.Introduction of biologics:Some biological agents can be introduced to regulate water quality and promote the growth of plankton. Such as: EM bacteria pioneer, ultra-high concentration EM strains, clean hydroponic algae, degradable ammonia nitrogen can be used, each bottle can be used 40 acres.
3.Proper fertilization:The principle of "small amount and many times" should be followed when fertilizing to avoid the deterioration of water quality caused by excessive fertilization at one time. At the same time, the amount of fertilizer should be adjusted according to the season, weather and the growth of crabs.
4.Change the water regularly:While fertilizer and water management is important, it is also important to change the water regularly to keep the water fresh. The frequency and amount of water change should be determined according to the actual situation of the crab pond and the weather conditions.
3. Precautions
1.Avoid over-fertilization:Excessive fertilization can lead to deterioration of water quality, affecting the growth and health of crabs.
2.Adjust the strategy according to the situation:The growth needs and water quality changes of crabs vary in different seasons, and the fertilizer and water management strategies should be adjusted according to the actual situation.
3.Focus on balance:The management of fertilizer and water in crab ponds is a comprehensive task, which needs to comprehensively consider the growth needs of crabs, water quality changes, ecosystem balance and other aspects.