一、清淤晒塘。在11月前后将塘水排干,清理淤泥,让底泥风化,阳光消毒。每亩塘用生石灰100公斤,用水溶解后全塘泼洒(包括塘边),然后晒塘。塘底力求晒到龟裂。二、施放基肥。到3月中旬左右,新挖塘用75公斤左右禽畜粪全塘施泼,旧塘不宜再施基肥。三、灌水入塘。3月中、下旬灌水入塘,水深0.3—1.2米,视天气是否下雨及塘漏 First, dredging sun pond. In November before and after the pond drained to clean the silt, so that sediment weathering, sun disinfection. Lime 100 kg per mu of ponds, dissolved in water after the whole pond spilled (including the pond side), and then sun pond. At the end of the pond to dry to crack. Second, cast base fat. Around mid-March, the new digging pond with 75 kg of livestock manure Quan Tang Shi Pau, the old pond should not be based on base fertilizer. Third, irrigation into the pond. In mid-March, late into the pond irrigation, water depth 0.3-1.2 meters, depending on whether the weather is raining and pond leakage