| 密度和氮肥运筹对两种穗型小麦生长与物质生产特性的影响 |
| |
| 引用本文： | 刘红胜,王竟绍.密度和氮肥运筹对两种穗型小麦生长与物质生产特性的影响[J].现代农业科技,2021(9). |
| |
| 作者姓名： | 刘红胜 王竟绍 |
| |
| 作者单位： | 合肥丰乐种业股份有限公司,合肥丰乐种业股份有限公司 |
| |
| 基金项目： | 国家科技支撑计划课题(2006BAD02A06-19)；国家科技支撑计划项目(2009BADA6B06,2008BAD96B12)共同资助 |
| |
| 摘 要： | 研究了密度和氮肥基追比例对不同穗型冬小麦生长与物质生产特性的影响,以多穗型小麦烟农19和大穗型小麦兰考矮早8为材料,在同一施氮量设氮肥基追比例7:3、5:5和4:6 3个水平和密度设低、中、高3个水平组合处理进行大田试验。结果表明：多穗型小麦烟农19的中密度和氮肥基追比例5:5互作处理、大穗型小麦兰考矮早8的高密度和氮肥基追比例7:3互作处理有利于叶绿素SPAD值、旗叶净光合速率、群体叶面积指数、干物质积累量的提高,产量最高。
|
| 关 键 词： | 穗型 氮肥 密度 物质生产 |
| 收稿时间： | 2020/12/9 0:00:00 |
| 修稿时间： | 2020/12/15 0:00:00 |
Effects of density and nitrogen fertilization on growth and substance production characteristics of wheat with two panicle types |
| |
| Authors: | wang jing shao |
| |
| Institution: | Hefei Fengle Seed Co., Ltd. |
| |
| Abstract: | The effects of density and ratio of base to Topdressing of nitrogen fertilizer on growth and material production characteristics of winter wheat with two spike types were studied. Yannong 19 with multi spike type and Lankao aizao 8 with large spike type were selected as materials. The ratio of base to topdressing of nitrogen fertilizer was 7:3,5:5 and 4:6 at the same nitrogen application rate, and the density was set as low , medium and high. Field experiments were carried out with three horizontal combinations.The results showed that: the interaction of medium density and N-fertilizer ratio of 5:5 for multi spike wheat Yannong 19, high-density of large spike wheat Lankao aizao 8 and 7:3 interaction of nitrogen fertilizer base topdressing ratio were beneficial to the improvement of chlorophyll SPAD value, net photosynthetic rate of canopy leaf, population leaf area index and dry matter accumulation, and the yield was the highest. |
| |
| Keywords: | spike type nitrogen fertilizer density material production |
|
| 点击此处可从《现代农业科技》浏览原始摘要信息 |
| 点击此处可从《现代农业科技》下载免费的PDF全文 |
