农化制品板块2月2日跌6.88%，宏达股份领跌，主力资金净流出22.69亿元

Group 1 - The agricultural chemical sector experienced a significant decline of 6.88% on February 2, with Hongda Co. leading the drop [1] - The Shanghai Composite Index closed at 4015.75, down 2.48%, while the Shenzhen Component Index closed at 13824.35, down 2.69% [1] - Key stocks in the agricultural chemical sector saw substantial losses, with Hongda Co. down 10.02% to 14.63, and Zhongnong United down 10.01% to 18.52 [1] Group 2 - The agricultural chemical sector saw a net outflow of 2.269 billion yuan from main funds, while retail investors had a net inflow of 2.299 billion yuan [1] - Individual stock fund flows showed varied results, with Guangxin Co. experiencing a net outflow of 40.09 million yuan from main funds [2] - Longqing Co. had a net inflow of 4.18 million yuan from main funds, while Jinzhen Co. saw a net outflow of 3.77 million yuan from retail investors [2]