| 磷素施用对糯玉米子粒产量和磷素积累分配的影响 |
| |
| 引用本文： | 陆虎华,赵浚宇,陈国清,薛林,郝德荣,陆大雷,陆卫平.磷素施用对糯玉米子粒产量和磷素积累分配的影响[J].玉米科学,2016,24(5):128-135. |
| |
| 作者姓名： | 陆虎华 赵浚宇 陈国清 薛林 郝德荣 陆大雷 陆卫平 |
| |
| 作者单位： | 江苏沿江地区农业科学研究所, 江苏 如皋 226541,江苏沿江地区农业科学研究所, 江苏 如皋 226541,江苏沿江地区农业科学研究所, 江苏 如皋 226541,江苏沿江地区农业科学研究所, 江苏 如皋 226541,江苏沿江地区农业科学研究所, 江苏 如皋 226541,扬州大学, 江苏 扬州 225009,扬州大学, 江苏 扬州 225009 |
| |
| 基金项目： | 江苏省农业科技自主创新资金项目[CX（14）4068]、江苏省农业三新工程项目[SXGC（2015）105]、江苏省科技基础设施建设计划项目[BM2013391]、南通市科技公共服务平台项目（CP22013005）、南通市科技创新项目（MS12015073） |
| |
| 摘 要： | 以苏玉糯5号和渝糯7号为试材,研究不同磷肥施用量和施用时期对糯玉米子粒产量及磷素积累分配的影响。结果表明,糯玉米成熟期子粒产量随施磷量的增加而增加,苏玉糯5号在基施和拔节期分别追施P_2O_575 kg/hm~2处理子粒产量最高;渝糯7号一次性基施P_2O_5150 kg/hm~2的处理子粒产量最高。随着生育进程的推进,两个品种植株磷素积累量均逐渐增加;同一生育时期下,两个品种植株磷素积累量随着施磷量的增加而增加。成熟期苏玉糯5号和渝糯7号两个品种在各施磷处理下子粒中磷素占植株整体的分配比例均最高,达70%左右;雄穗和苞叶中磷素含量相对最低,各仅占植株整体含磷量的2%左右。植株磷素利用效率在基施和拔节期分别追施P2O575 kg/hm~2处理下较低。综合两个品种产量、磷素积累和分配在不同处理的变化趋势,以基施和拔节期分别追施P_2O_575 kg/hm~2较优。
|
| 关 键 词： | 糯玉米 磷素 子粒产量 磷素积累和分配 |
| 收稿时间： | 2015/12/20 0:00:00 |
Effects of Phosphorus on Grain Yield and Phosphorus Accumulation and Distribution in Waxy Maize |
| |
| LU Hu-hu,ZHAO Jun-yu,CHEN Guo-qing,XUE Lin,HAO De-rong,LU Da-lei and LU Wei-ping.Effects of Phosphorus on Grain Yield and Phosphorus Accumulation and Distribution in Waxy Maize[J].Journal of Maize Sciences,2016,24(5):128-135. |
| |
| Authors: | LU Hu-hu ZHAO Jun-yu CHEN Guo-qing XUE Lin HAO De-rong LU Da-lei and LU Wei-ping |
| |
| Institution: | Agricultural Institute of Riparian of Jiangsu, Rugao 226541,Agricultural Institute of Riparian of Jiangsu, Rugao 226541,Agricultural Institute of Riparian of Jiangsu, Rugao 226541,Agricultural Institute of Riparian of Jiangsu, Rugao 226541,Agricultural Institute of Riparian of Jiangsu, Rugao 226541,Yangzhou University, Jiangsu, Yangzhou 225009, China and Yangzhou University, Jiangsu, Yangzhou 225009, China |
| |
| Abstract: | The effects of different amount of P2O5 fertilizer and its application time on waxy maize grain yield and phosphorus accumulation and distribution were studied using Suyunuo5 and Yunuo7 as materials under two-factor split-plot design. The results showed that the grain yield increase with the increment of phosphorus amount, Suyunuo5 highest grain yield was got in the treatment of P2O5 75 kg/ha applied at sowing and topdressing stage, respectively. Yunuo7 highest grain yield was got in treatment of basic fertilizer P2O5 150 kg/ha. With the advance of crop growth, plant phosphorus accumulation gradually increases and the value gradually increased with phosphorus amount at the same stage, and the value peak at P2O5 75 kg/ha applied at sowing and topdressing stage. At maturity, the P content was mainly located in grain, which occupied about 70% of the total accumulation amount, while the value in tassel and bracts were only occupied about 2% of the total. The phosphorus utilization efficiency was lower at P2O5 75 kg/ha applied at sowing and topdressing stage respectively. Among the different treatments, P2O5 75 kg/ha applied at sowing and topdressing stage respectively could get the highest grain yield, dry matter, and P accumulation amount, with the lowest phosphorus utilization efficiency. |
| |
| Keywords: | Waxy maize Phosphorus Yield Phosphorus accumulation and distribution |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《玉米科学》浏览原始摘要信息 |
| 点击此处可从《玉米科学》下载免费的PDF全文 |
|
