论文部分内容阅读
在谷物生产过剩、天旱时有水源保证、水质又符合渔业水质标准的地区 ,实行部分宜鱼稻田休稻养鱼。一种模式是 :在丘陵地区以养鱼为主的稻田 ,可建占稻田面积 10 %～ 2 0 %的鱼凼、鱼沟 ,亩增加蓄水150 m3 ～ 30 0 m3 ;另一种模式是 :属沙土或半沙、半粘土壤的稻田 (以养虾、蟹为主 ) ,建稻田面积 30 %～ 50 %的鱼沟数条 ,亩可增加蓄水 2 0 0 m3 ～ 30 0 m3 。这两种凼、沟工程中 ,实施稻、鱼 (虾、蟹 )、果、菜、萍、花卉等优化组合 ,立体开发 ,每 m3 水体可年生产 1kg或 0 .5kg虾 (蟹 ) ,比单种水稻提高 5～ 8倍利润。
In excess grain production, water supply when drought is guaranteed, the water quality in line with the fishery water quality standards in the region, the implementation of part of the appropriate fish rice paddy fish. One model is that in paddy fields where fish farming is dominant in the hilly areas, 10-60% of the paddy fields and fish ditch may be built and occupied, with an increase of 150-330 m3 in water storage; another mode is : Sandy or semi-sand, semi-clay paddy fields (shrimp, crab-based), the construction of rice paddy area of 30% to 50% of the number of fish ditch, acres can increase the storage 200 ~ 300 m3. These two Taipa, ditch project, the implementation of rice, fish (shrimp, crab), fruit, vegetables, flowers, flowers and other optimal combination of three-dimensional development, per m3 of water can produce 1kg or 0.5kg shrimp (crab) A single kind of rice to improve profits 5 to 8 times.