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1、观察透明度:养虾期间,池水的透明度一般应掌握在30-40cm。当透明度低于30cm时,应停止施肥,并适量换水;当透明度高于40cm时,说明浮游生物太少,应适当施肥。2、观察水色:养虾池的水色是池内浮游生物种类和数量的表现。水中含有丰富的硅藻、绿藻等浮游植物时,水呈浅褐色或黄褐
1, observe the transparency: During shrimp, the transparency of water should generally be in the 30-40cm. When the transparency is less than 30cm, fertilization should be stopped, and the amount of water change; when the transparency is higher than 40cm, the plankton too little, should be appropriate fertilization. 2, observe the color: shrimp aquaculture pond is plankton species and quantity of performance. Water is rich in diatoms, green algae and other phytoplankton, the water was light brown or yellow brown