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1.试验材料和方法 1.1 试验日期 1989年5月18日～9月28日,全程132天。 1.2 试验地点东沟县海洋红农场养虾场。 1.3 试验虾池选择的3个虾池,彼此相邻,对照组、试一组、试二组面积(亩)分别为28.5、28、13,且均在高潮区以内,换水全部靠水泵提水。(注:每月两大潮汛时,只能提新水10天左右,其余有10～15天可提各虾池排出的循环水,每月还有5～7天不能提水。3个虾池的提水能力同其面积比基本相同) 1.4 虾苗由海洋红农场育苗场提供,每亩放
1. Test Materials and Methods 1.1 Test Date May 18, 1989 to September 28, the entire 132 days. 1.2 Test Location Donggou Ocean Red Farm shrimp farm. 1.3 Test shrimp ponds selected three shrimp ponds, adjacent to each other, the control group, a test group, test two groups of area (mu) were 28.5,28,13, and are within the orgasm zone, all water change by pumping water. (Note: The two major tidal floods each month, only to mention the new water about 10 days, the remaining 10 to 15 days to mention the circulation of water discharged from the shrimp ponds, there are 5 to 7 days a month can not mention water .3 shrimp Pool water capacity with its area ratio is basically the same) 1.4 shrimp seedlings provided by the Marine Red Farm, mu