红萍是一种适应性强,繁殖快,肥效好的水生绿肥。大力发展稻田养萍,是自力更生、多快好省地解决肥源的重要途径.今年我们在海拔820余公尺的井冈山茨坪,进行稻田养萍的试验、示范。四月中旬,越冬萍种放入萍母田后,生长繁殖正常,五月初偶见萍丝虫,中旬便大量发生和危害。经采取多种措施, Hongping is a kind of adaptable, fast propagation, good fertilizer aquatic green manure. To develop rice paddies is an important way to solve the problem of self-reliance and quicker, better and more economical solution to the problem of fertilizer sources. This year we conducted experiments and demonstration on rice paddies in Ciping, Jinggangshan, at an altitude of 820 meters. In mid-April, the overwintering species was put into the field of Pingtong and grew normally and multiply. After taking various measures,