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稻田养鱼是一种新的种养结合的生产方式,各地区推广较快,经济效益好,均可获得鱼稻双丰收。但是,如果施肥和用药不当,不仅对水稻生长无益而且对鱼类生长有很大影响,严重者会造成药害。养鱼稻田施肥时应注意以下几点:1.基肥要用氨水、碳酸氢铵、钙镁磷等化学肥料,尽管用量较大,一般在施肥7～10天之后再放养鱼种,对鱼无影响。2.追肥。一般用尿素为宜,每亩用量可掌握在7～10公斤,撒施之前,要适当加深田水,使水
Paddy fish farming is a new mode of production combined with planting and breeding, rapid promotion in all regions, good economic returns, can obtain double harvest of fish and rice. However, improper fertilization and misuse not only do harm to the growth of rice but also have a great impact on the growth of fish. In severe cases, it can cause phytotoxicity. Fish farms should pay attention to the following points when fertilizing: 1. Base fertilizer to use ammonia, ammonium bicarbonate, calcium magnesium phosphate and other chemical fertilizers, although a large amount of fertilizer, generally 7 to 10 days after fertilization re-feeding of fish species influences. 2 top-dressing Urea is generally appropriate, the amount per acre can be mastered at 7 to 10 kg, before spreading, to deepen the field water, so that water