| 播期对河套地区玉米干物质积累模型的影响 |
| |
| 引用本文： | 孔德胤,李建军,杨 松,王卫东,杨钦宇,黄淑琴.播期对河套地区玉米干物质积累模型的影响[J].中国农学通报,2015,31(36):49-53. |
| |
| 作者姓名： | 孔德胤 李建军 杨 松 王卫东 杨钦宇 黄淑琴 |
| |
| 作者单位： | (内蒙古巴彦淖尔市农业气象试验站,内蒙古临河 015000） |
| |
| 基金项目： | 公益性行业专项“河套灌区主要农作物农业气象条件预评估技术研究”(GYHY20120621)。 |
| |
| 摘 要： | 建立玉米干物质重量随生理日数、活动积温、有效积温生长变化的生长模型，确定玉米干物质重量随其增长变化的关键点，为玉米田间管理提供科学依据。采用分期播种试验数据，建立21个生长模型（Logistic方程均通过0.01的极显著检验），将玉米干物质重量随生理日数、活动积温、有效积温生长的时段分为三阶段，即渐增期、快增期和缓增期；当活动积温为1449.7℃·d时，开始进入快增期，到1733.7℃·d时，增长速度最快，达2008.5℃·d时，开始进入缓增期，终止点的活动积温为2717.3℃·d；当有效积温为761.4℃·d时，开始进入快增期，到912.0℃·d时，增长速度最快，达1068.6℃·d时，开始进入缓增期，终止点的有效活动积温为1447.3℃·d。以各阶段积温界限值作为判断水肥管理的依据，以取得最佳经济效益。
|
| 关 键 词： | 年增加量 年增加量 |
| 收稿时间： | 2014/3/12 0:00:00 |
| 修稿时间： | 2015/11/28 0:00:00 |
Growth Model of Maize Based on Dry Matter Accumulation in Hetao Area |
| |
| Kong Deyin,Li Jianjun,Yang Song,Wang Weidong,Yang Qinyu and Huang Shuqin.Growth Model of Maize Based on Dry Matter Accumulation in Hetao Area[J].Chinese Agricultural Science Bulletin,2015,31(36):49-53. |
| |
| Authors: | Kong Deyin Li Jianjun Yang Song Wang Weidong Yang Qinyu and Huang Shuqin |
| |
| Institution: | (Experimental Station of Agricultural Meteorology in Bayannaoer City, Linhe Inner Mongolia 015000) |
| |
| Abstract: | By establishing the growth model of maize in relation with the number of growing day, the active and effective accumulated temperatures, and determining the growth critical points in relation with maize dry matter accumulation, a scientific basis for field management would be provided. Different-stage sowing data were used. 21 growth models were established (Logistic equations were tested by 0.01 level extreme significance). The growth period of dry matter weight of maize in relation with the number of growing day, the active and effective accumulated temperatures, was divided into 3 stages, including gradual growth period, fast growth period and slow growth period. and began to enter the fast growth period when the active accumulated temperature was 1449.7℃·d. The fastest active accumulated point was 1733.7℃·d. It entered slow growth period at 2008.5℃·d. The active accumulated temperature of the termination point was 2717.3℃·d. When the effective accumulated temperature was 761.4℃·d, it entered into fast growth period. The fastest effective accumulated point was 912.0℃·d. It entered slow growth period at 1068.6℃·d. and the effective accumulated temperature of the termination point was 1447.3℃·d. The accumulated temperature points at different stages could be used for determining the water and fertilizer management, in order to get the optimal economic benefits. |
| |
| Keywords: | maize dry matter accumulation temperature water and fertilizer management |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《中国农学通报》浏览原始摘要信息 |
| 点击此处可从《中国农学通报》下载免费的PDF全文 |
|
