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发展冬种绿肥紫云英,是自力更生解决肥料问题,建设稳产高产农田的重大措施。1965年各地实践证明,紫云英绿肥施用得宜,能促进水稻大幅度增产。但也发生施绿肥田,早稻分蘖期延迟,影响早生快发;生育后期发生贪青,引起病害,增产效果不稳定等情况。究其原因,主要与施用技术密切相关。因此,探求紫云英绿肥合理的施用技术,是当前生产上迫切要求解决的问题。现就揭阳县1965年早造各地施用经验教训分述如下,以供参考。
The development of winter green Shi Ziyun Ying, self-reliance to solve the problem of fertilizer, building a stable and high yielding farmland major measures. Practice in various places in 1965 proved that the application of Shiyinying green manure can promote a substantial increase of rice yield. However, the application of green manure and delayed tillering of early rice also occurred, which affected the rapid growth of early rice and early growth. The occurrence of greyness, disease and yield instability were observed in the late growth period. The reason, mainly with the application of technology is closely related. Therefore, to explore the reasonable application of Ziyunying green manure is an urgent need to solve the current production problems. Now Jieyang County as early as 1965 made around the application of lessons learned as follows, for reference.