Pure natural flocculant for modifying bottom of aquaculture pond and preparation method thereof

The invention relates to a method for modifying bottom of an aquaculture pond and specifically relates to a pure natural flocculant for modifying the bottom of the aquaculture pond and a preparation method of the pure natural flocculant for modifying the bottom of the aquaculture pond. The pure natural flocculant for modifying the bottom of the aquaculture pond comprises the following components in parts by weight: 30-40 parts of paddy shell, 21-27 parts of beanstalks, 21-28 parts of sweet potato leaves, 20-25 parts of starch, 18-25 parts of folium mori, 15-22 parts of isoachlya, 12-17 parts of banana skin, 12-18 parts of galactomannan gum, 11-18 parts of bentonite and 9-15 parts of zeolite powder. The pure natural flocculant has the advantages of excellent bottom modifying effect, natural and nontoxic effect and no secondary pollution. 本发明涉及种水产养殖池塘底改方法，具体涉及种用于水产养殖池塘底改的纯天然絮凝剂，还涉及种上述用于水产养殖池塘底改的纯天然絮凝剂的制备方法。本发明的用于水产养殖池塘底改的纯天然絮凝剂包括以下重量份数的各组分：水稻壳30～40份、豆秸21～27份、红薯叶21～28份、淀粉20～25份、桑叶18～25份、水绵15～22份、香蕉皮12～17份、半乳甘露聚糖