农业综合板块8月19日涨0.1%，润农节水领涨，主力资金净流出1898.86万元

Group 1 - The agricultural comprehensive sector increased by 0.1% on August 19, with Runong Water Saving leading the gains [1] - The Shanghai Composite Index closed at 3727.29, down 0.02%, while the Shenzhen Component Index closed at 11821.63, down 0.12% [1] - Runong Water Saving's closing price was 8.58, with a gain of 0.59%, and a trading volume of 87,700 shares [1] Group 2 - The main funds in the agricultural comprehensive sector experienced a net outflow of 18.99 million yuan, while retail investors saw a net inflow of 26.75 million yuan [2] - The trading volume for Huilong Co. was 184,600 shares, with a closing price of 5.76 and a gain of 0.35% [1] - Dayu Water Saving's closing price was 5.38, with a decrease of 0.19% and a trading volume of 496,500 shares [1]