| 马兆惠，车仁君，张惠君，王海英，谢甫绨.磷酸二铵施肥量和单混种植对超高产大豆根系性状的影响研究[J].干旱地区农业研究,2014,32(2):119~125 |
| 磷酸二铵施肥量和单混种植对超高产大豆根系性状的影响研究 |
| Effect of different diammonium phosphate levels and population type on root traits of super-high-yield soybean cultivars |
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| DOI：10.7606/j.issn.1000-7601.2014.02.019 |
| 中文关键词: 大豆 施肥量 根系形态 根系活力 伤流成份 |
| 英文关键词:soybean fertilizer amount root morphological root activity bleeding sap |
| 基金项目:国家自然科学基金（31071355）；辽宁省科技厅攻关项目（2011201020）；国家“十一五”科技支撑计划（2011BAD35B06-2） |
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| 中文摘要: |
| 在盆栽条件下，以超高产大豆品种辽豆14、中黄35和普通大豆品种辽豆11为试材，探讨了超高产品种在不同施肥量和种植类型处理下根系的竞争力。结果表明，超高产品种和普通品种大豆的根系形态性状、根系活力和伤流成份在品种和品种×肥力互作间均存在显著差异。开花期，普通品种在不施肥条件下单播处理的根长、根表面积和伤流量较超高产品种分别高出46.3%、47.6%和27.9%，差异达显著水平。超高产品种在中肥和高肥水平下根系形态指标较高，在鼓粒期和混播处理中其根系活力、伤流量和伤流成份含量均显著高于普通品种。说明在施肥量充足时，超高产品种的根系较普通品种表现了良好的生长优势和吸收能力。 |
| 英文摘要: |
| Super-high-yielding soybean cultivar Liaodou 14, Zhonghuang 35, and conventional cultivar Liaodou11 were used to study the root competitiveness of Super-high-yield soybean under different fertilizer rate (0,100 and 200 mg diammonium phosphate/kg soil) and population type (single seeding and mix seeding). The result showed that the root morphological trait, root vigor and bleeding sap amount of soybean showed a significant difference for cultivar and cultivar×fertility interaction. The root length, root surface, and bleeding sap of conventional cultivar Liaodou11 were higher than those of super-high-yield cultivar under the non-fertilizer treatment especially at blooming stage and single seeding treatment (46.3%,47.6% and 27.9%). On the other hand, the root morphological index, root activity, bleeding and bleeding element content of super-high-yielding soybean cultivar was significant higher than that of the conventional cultivar, which was more obviously at seed filling stage and mix seeding treatment. The results indicated that super-high-yield soybean root had higher growth rate and absorbing ability at abundant fertilizer rate. |
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