论文部分内容阅读
三个多与三个少的原则即利用同一空间的品种要少放,不同空间的品种可以多放;摄食同一种饵料的品种要少放,不同食性的品种可以多放;对主养品种危害大的要少放,危害少或没有危害的多放。
More than three and three less principle that the use of the same space less variety of varieties, different varieties of space can be placed more; feeding the same kind of food to be less species, different food species can be placed more; Big to put less harm or no harm to put more.