杂交水稻是我国农业方面的一项重大发明。它的研究和推广在国际上居领先地位,突破了‘水稻是自花授粉作物,杂交没有优势’的观点,解决了大量制种的技术难题,为大幅度提高水稻产量开辟了新的途径。我县几年来的实践证明,要大力发展杂交水稻,必须稳定当家组合,积极推广接班组合,试种高产、高抗、优质的新组合,促使杂交水稻按梯级形式发展。 Hybrid rice is a major invention in agriculture in China. Its research and promotion have led the world in breaking through the concept that rice is self-pollinating and hybrids have no advantage. The technical problems of large-scale seed production are solved, opening up new avenues for greatly increasing the output of rice. Practice in our county over the past few years has proved that to develop hybrid rice vigorously, it is necessary to stabilize the combination of leaders and take the initiative to promote succession combinations and try new combinations of high yield, high resistance and high quality to promote the development of hybrid rice in a cascade.