| 氮钾耦合对黄芪种子产量和质量的影响 |
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| 引用本文： | 王国祥,武伟国,蔡子平,米永伟,王宏霞.氮钾耦合对黄芪种子产量和质量的影响[J].甘肃农业科技,2016(11):9-14. |
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| 作者姓名： | 王国祥 武伟国 蔡子平 米永伟 王宏霞 |
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| 作者单位： | 甘肃省农业科学院中药材研究所，甘肃 兰州 730070; 甘肃省中药材种质改良与质量控制工程实验室，甘肃 兰州 730070 |
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| 基金项目： | 甘肃省农业科学院中药材重大科技创新专项(2013GAAS03-02)；国家基本药物所需中药材种子种苗繁育基地建设(国中医药办规财发[2013]41)；甘肃省道地中药材产业科技攻关项目(GYC14-01)。 |
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| 摘 要： | 以蒙古黄芪为材料,研究了氮钾耦合对黄芪种子产量和质量的影响。结果表明,施氮可提高黄芪种子产量,提高蛋白质含量;施钾可提高种子淀粉含量。在黄芪现蕾期和盛花期追施尿素120 kg/hm2和喷施3 g/kg磷酸二氢钾溶液2次(间隔7 d),种子产量最高,为136.65 kg/hm2,较不追肥处理增产15.40%;结实率为54.20%,较不追肥处理提高7.6百分点;种子千粒重达到8.04 g,较不追肥处理增加0.32 g。
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| 关 键 词： | 黄芪 氮钾耦合 产量 质量 |
| 收稿时间： | 2016/8/30 0:00:00 |
Effects of Nitrogen and Potassium Coupling on Seed Yield and Quality of Astragalus membranaceus |
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| WANG Guoxiang,WU Weiguo,CAI Ziping,MI Yongwei,WANG Hongxia.Effects of Nitrogen and Potassium Coupling on Seed Yield and Quality of Astragalus membranaceus[J].Gansu Agricultural Science and Technology,2016(11):9-14. |
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| Authors: | WANG Guoxiang WU Weiguo CAI Ziping MI Yongwei WANG Hongxia |
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| Abstract: | With triennial Astragalus membranaceus var. mongholicus as materials, the effects of nitrogen and potassium coupling on seed yield and quality of Astragalus membranaceus is studied. The result indicates that nitrogen fertilizer could increase the seed yield and protein content of Astragalus membranaceus, potassium fertilizer could increase the seed starch content of Astragalus membranaceus. When topdressing 120 kg/hm2 CH4N2O and spraying 3 g/kg KH2PO4 for 2 times at squaring stage and full-bloom stage, the seed yield attained to the highest value of 136.65 kg/hm2 and increased 15.4%compared with control, the maturing rate is 54.20% and increased 7.6 percent point compared with control, the thousand kernel weight is 8.04 g and increased 0.32 g compared with control. |
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| Keywords: | Astragalus membranaceus Coupling effect Yield Quality |
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