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(续第8期第16页)4.水质调控池水以黄绿色为好,透明度保持在30~40厘米,pH值控制在7.2~7.8。当水色变为茶褐色、黑褐色或水中溶氧量低于3毫克/升时,要及时加注新水,以增加池水溶氧量,注水时注意用木板将水挡散。若水质太瘦,则适当追施肥料,每667平方米施有机肥50~80公斤,另根据水质情况,施碳酸氢铵4~5公斤、磷肥2~3公斤。要经常施肥,保持池塘中的浮游生物繁盛不衰。5.科学投饵采取以投喂人工饵料为主,
(Continued on page 16, page 16) 4. Water quality control Pool water to yellow green as well, the transparency of 30 to 40 cm, pH control at 7.2 ~ 7.8. When the water color turns brown, dark brown or dissolved oxygen in water is less than 3 mg / L, it is necessary to add fresh water in a timely manner to increase the amount of dissolved oxygen in water. If the water quality is too thin, then the appropriate fertilizer topdressing, organic fertilizer per 667 square meters 50 to 80 kg, the other according to the water quality, ammonium bicarbonate 4 to 5 kg, phosphate fertilizer 2 to 3 kg. Use regular fertilizers to keep the plankton in the pond prosperous. 5. Scientific feeding to take to feed artificial bait-based,