| 播种量对龙粳39、龙粳31混种秧苗素质及产量的影响 |
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| 引用本文： | 刘传增.播种量对龙粳39、龙粳31混种秧苗素质及产量的影响[J].中国稻米,2017(6):108-110. |
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| 作者姓名： | 刘传增 |
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| 作者单位： | 黑龙江省农业科学院齐齐哈尔分院,黑龙江齐齐哈尔,161006 |
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| 摘 要： | 在黑龙江省第三积温带,龙粳39、龙粳31按4∶6的比例混合种植方式被广泛应用,本文研究了不同播种量对该模式秧苗素质及产量的影响。结果表明,随着播种量的增加,秧苗株高增高,叶片数和根数减少,茎基宽、充实度、秧苗地上部、地下部百株鲜质量与干质量均呈减小趋势,根系盘结力增强,秧苗立枯病病株率及病情指数增高,秧苗素质变差;产量以110 g/盘干籽处理最高,达9 282.45 kg/hm~2。
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| 关 键 词： | 播种量 混种 秧苗素质 产量 |
Effects of Mixed Sowing Amount on Seedling Quality and Yield between Longgeng 39 and Longgeng 31 |
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| Abstract: | The mixed cropping way of 4:6 proportion between Longgeng 39 and Longgeng 31 is widely used in the third temperature zone of Heilongjiang Province, the effects of different sowing amount on seedling quality and yield were studied in this paper. The re-sults showed that, with the increase of seeding amount, seedling height increased, leaf number, root number, stem width, stem plump-ness, and dry weight and fresh weight decreased, while the root set strengthened, disease rate and disease index of seedling blight in-creased. The yield of the treatment by 110 g/disk dry seed was the highest, up to 9282.45 kg/hm 2. |
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| Keywords: | sowing amount mixed cropping seedling quality yield |
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