每年的５～９月份，每星期用绑有稻草的尼龙绳，系上砖头等重物后，２人站在池塘２边各拉一端，沿着池埂在池塘中来回拖１次，即可提高鲢鳙产量和防止“泛池”的发生。１ 提高鲢鳙产量 绳拖可使被淤泥吸附的９５％以上的有效磷得以蜂放，促使浮游生物的大量繁殖，从而增加鲢鳙 Every year from May to September every year, tied with a straw rope nylon, tied to a brick and other heavy objects, two people standing on each side of the pond pull one end, along the pond 来 drag back and forth in the pond 1, you can Increase the production of silver carp and bighead carp and prevent the occurrence of “pan-pool”. 1 increase the production of silver and silver carp rope drag can make more than 95% of the available phosphorus adsorption by the sludge bee, to promote the large number of plankton breeding, thereby increasing the silver carp and bighead carp