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早春由于水温逐渐上升,在养鱼管理上应抓好以下八要点: 1.水 即水温和水质 在适宜范围内,鱼类生长随水温上升而摄食增加,生长加快。初春鱼池水位应掌握在0.7-1.0米,让水温能较好的升高,充分发挥肥效和促使鱼类提早开食。若发现水质老化和偏酸性,可注入15-20厘米新水,并用20-30公斤/亩生石灰全池泼洒。水质清瘦时,适当施加庸熟有机肥或农用氮,磷肥,保持池水透明度30-40厘米。 2.肥 即施足底肥和适时追肥 当水温
As the water temperature gradually rises in early spring, we should grasp the following eight points in the fish management: 1. Water is the water temperature and water quality Within the appropriate range, the growth of fish increases with the rise of water temperature and the growth of fish increases. Early spring pond water level should be controlled at 0.7-1.0 meters, so that water temperature can rise better, give full play to fertilizer efficiency and to promote early fish food. If it is found that water quality aging and acidic, can inject 15-20 cm of fresh water, and with 20-30 kg / acre lime Quanchiposa. Thin water, the appropriate application of organic fertilizer Yong Yong or agricultural nitrogen, phosphate, water transparency to maintain 30-40 cm. Fertilizer that foot fertilizer and timely top dressing when the water temperature