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通过二年水稻两品种抛秧与常规手插的对比研究,结果表明:头季稻抛秧与手插产量无显著差异,而再生稻“浙辐802”抛秧明显高于手插,“汕优 63”两者相当。在穗数上抛秧具有明显优势,“浙辐 802”再生穗数比手插高70.8%,“汕优63”高18.2%。分析其再生穗数构成,“浙辐802”再生穗数由一次穗、二次再生穗组成,一次再生穗为主,占56%;再生穗发生于2个节位,以基部第一节再生穗为主。“汕优 63”只有一次再生穗,发生于3个节位,第三节位再生德占总的60%左右。抛秧每穗粒数比手插的少,但是穗数优势弥补或超过了粒数弱势,使抛秧具有比手插再生稻相当或更高的产量。
The results showed that there was no significant difference in seedling throwing and hand plucking between the first rice and the second planting rice, while the transplanting rice “Zhefu 802” You 63 “equivalent. Sprouting seedlings in the number of spikes has obvious advantages, ”Zhejiang spokes 802“ spike 70.8% higher than the hand inserted, ”Shanyou 63“ high 18.2%. The spikes of regeneration spikelets were analyzed. The spikelets of ”Zhefu 802“ were composed of first spikelets and second spikelets, and the main one was spikelets, accounting for 56%. The spikelets occurred at 2 nodes and regenerated in the first section Spike-based. ”Shanyou 63" only one spike regeneration, occurred in three sections, the third section of the total regeneration accounted for about 60% Germany. Throwing grain per spike less than the hand inserted, but the number of spikes to make up for more than the number of grains or weaknesses, throwing transplanting rice seedlings have a higher or higher yield.