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重庆市合川县农村养鱼户在大力推广稻田半旱式种植法的基础上,又试行了冬水田双垄厢沟种稻养鱼技术。该县大石乡观龙村何代明,双庙村周兴隆等6户农民,1986年在7.25亩冬水田,实行双垄厢沟种稻养鱼,实收稻谷3,858.5公斤,亩平产稻谷532.2公斤,实收鲜鱼333.5公斤,亩产鲜鱼46公斤。其中2块2.9亩收再生稻234.5公斤,亩产80.8公斤,5块田5.85亩,收高笋465.3公斤,亩产79.5公斤;实现了产值翻番。双垄厢沟式稻田养鱼技术,适宜于冷浸冬水田稻田,一般不需翻犁,在加高加固田坎后,作成厢宽80厘米,沟宽50厘米,沟深33厘米以上。作厢时采用双绳牵线平行定距,控制沟宽距离。在作双垄厢前首先作好田中和田周四面相通的主鱼沟(保鱼沟),主鱼沟的宽深度根据鱼种和田的大小而定。田块周围的主鱼沟要远离田坎和背坎4～5行秧距远,作为田坎的保护带。作双垄
On the basis of vigorously promoting the semi-arid cultivation method in paddy fields, the farmers in Hechuan County, Chongqing Municipality, tried out the double-ridged furrows and paddy cultivation techniques in winter paddy fields. In the county Dashixiang Kwun Long Village Ho Dai Ming, Shuangmiao Village weeks Xinglong and other six farmers in 1986 in 7.25 acres of winter paddy fields, the implementation of double-ridge ditch species of rice, real rice 3,858.5 kg, mu flat-crop 532.2 kg, Remaining fresh fish 333.5 kilograms, 46 kilograms of fresh fish per mu. Among them, two 2.9 mu of regenerated rice are muted at a yield of 234.5 kg, a yield of 80.8 kg, a yield of 5.85 mu in 5 plots, a gain of 465.3 kg in high shoots and a yield of 79.5 kg per mu; Double ridge ditch paddy field fish farming technology, suitable for cold paddy paddy paddy fields in winter, generally do not need to turn the plow, in the heightening ridge after the formation of 80 cm wide, 50 cm in width, ditch more than 33 cm. For the box when using double-rope tied parallel distance, control the width of the groove. Before making a double-ridge box, the main fish ditch (fish-holding ditch) that connects the four sides of Tianhe Central Tianhe area first is made. The width of the main fish ditch is determined by the size of the fish species and the fields. The main fish trenches around the plots should be far away from the ridge and the ditch 4 to 5 rows of seedlings far away, as a ridge ridge protection zone. For double ridge