农业综合板块1月21日涨0.36%，大禹节水领涨，主力资金净流出87.52万元

Group 1 - The agricultural sector index increased by 0.36% on January 21, with Dayu Irrigation leading the gains [1] - The Shanghai Composite Index closed at 4116.94, up 0.08%, while the Shenzhen Component Index closed at 14255.12, up 0.7% [1] - Dayu Irrigation's closing price was 4.85, with a gain of 0.41%, and a trading volume of 173,200 shares [1] Group 2 - The agricultural sector experienced a net outflow of 875,200 yuan from main funds, while retail investors saw a net inflow of 927,620 yuan [1] - Dayu Irrigation had a net outflow of 2,908,200 yuan, representing a decrease of 3.47% [1] - Huilong Co. experienced a net outflow of 7,419,600 yuan, with a decrease of 7.93% [1]