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我县在近年的杂交稻制种生产中,采用了地池育秧小苗栽插技术,对增加母本的穗数和每穗颖花数具有显著效果。 1.地池育秧技术选择背风向阳的场地,挖一个深2寸的地池(长、宽视种子数量及覆盖薄膜的宽度而定)。先在底部铺一层薄膜,在薄膜上摊匀一层约1厘米左右厚的烂塘泥,在塘泥上每平方尺播种3两芽谷(0.5公斤干种子可催出芽谷0.65公斤),轻踏谷,撒上田灰土,用喷雾器打湿复土,盖上薄膜。阳光强时,用草帘遮光,掌握膜内温度不超过35℃。栽前注意炼苗,栽时叶尖顶水珠最佳,否则,适当喷雾。一叶一心开始移栽到大田,密度大栽1粒谷苗,密度小栽2粒谷苗,至2叶全部栽完。
In recent years, my county hybrid rice seed production, the use of the pool planting seedlings transplanting techniques, to increase the female parent spikelets and spikelets per panicle has a significant effect. 1. To pool seedling technology Select leeward sunny venue, dig a deep 2-inch pool (long, depending on the number of seeds and cover the width of the film may be). Lay a thin film on the bottom first, spread a layer of rotten mud about 1 cm thick on the film, and sowing 2 buds per square foot on the mud (0.5 kg of dry seeds can induce 0.65 kg of buds) Light tapping the valley, sprinkled on Tian soil, wet with a sprayer, covered with film. When the sun is strong, shade with straw curtain, grasp the film temperature does not exceed 35 ℃. Note planting seedlings before planting, leaf spire when planting the best, otherwise, appropriate spray. A leaf one heart began transplanting to Daejeon, planting a large density of grain seedlings, planting density 2 small grain seedlings, to 2 leaves all planted finished.