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(一)稻田模式及田间工程 1.稻田养鱼的模式。可分为“田、沟、凼”模式和“高垄低沟”模式,现多采用第一种生产模式。 2.田间工程。主要是开挖鱼沟、鱼凼和田埂加固,通常为石块堆砌和三合土护边。鱼凼以圆型为宜,鱼凼的面积要视稻田大小而定,一般比例为占稻田面积的5％～8％。鱼凼下挖深度为1.5米上砌高度为1.8米,直径为6～9米。鱼
(A) paddy field model and field engineering 1. Paddy fish farming mode. Can be divided into “Tian, ditch, Taipa” mode and “high ridge and low ditch” mode, are now using the first production model. Field Engineering Mainly excavation fish ditch, Taipa and Tian 埂 reinforcement, usually stone piling and trimming soil edge. It is advisable to use a circular type for the fish Taipa. The area of the fish Taipa will depend on the size of the paddy field, with a typical ratio of 5% to 8% of the paddy field. Miaotao digging depth of 1.5 meters on the building height of 1.8 meters, a diameter of 6 to 9 meters. fish