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我县戴庄村大沟上科技户张留大,1982年利用自己承包的2.5亩稻田放养鱼苗,当年就取得亩产鱼种42.9斤、亩产水稻987斤的好收成。1983年稻田养鱼苗6.2亩,亩产鱼种56.6斤,水稻单产提高到1,221斤。张留大稻田养鱼种的主要经验: 一、开挖好鱼沟鱼窝培育鱼种的稻田,要选择易灌易排,四周田埂牢固坚实的近村田,为了创造鱼栖息游戏的场所,要挖好鱼沟、鱼窝,按照田块的大小,确定开挖鱼沟的条数和鱼窝的个数。鱼沟一般开成“中”字或
Zhang County, Dagou Village, Dagou County, a science and technology household, stayed in Zhang County. In 1982, it took stock of 2.5 million mu of paddy field with its own contract. In the same year, 42.9 kg of muleated fish species and 987 kg of mu of rice were harvested. In 1983, there were 6.2 mu of paddy fish fry in paddy field, 56.6 kg of mule per mu, and rice yield increased to 1,221 kg. The main experience of Zhangyu large-scale paddy field fish farming: First, excavation good fish ditch fish breeding foraging paddy fields, to choose easy to easy to row, surrounded by Tian Mi solid solid near Murata, in order to create a fish habitat game place, to Dig a good fish ditch, fish nest, in accordance with the size of plots to determine the number of fish ditch excavation and the number of fish nests. Fish ditch generally open into “in” word or