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分层施磷对冬小麦生长及产量的影响
引用本文:席天元,李永山,谢三刚,刘青云,赵海祯,梁哲军. 分层施磷对冬小麦生长及产量的影响[J]. 中国农业科技导报, 2016, 18(3): 112-118. DOI: 10.13304/j.nykjdb.2015.734
作者姓名:席天元  李永山  谢三刚  刘青云  赵海祯  梁哲军
作者单位:1.山西省农业科学院棉花研究所, 山西 运城 044000,2.运城农业职业技术学院, 山西 运城 044000
基金项目:“十二五”国家科技支撑计划项目 (2015BAD22B03-04)资助。
摘    要:为探明分层施磷对冬小麦生长发育和产量的影响,在大田采用PVC管栽培法,设置不施肥、0~20 cm单施氮肥、0~20 cm单施磷肥、0~20 cm施氮磷肥、分层施磷(1~20 cm,20~40 cm,40~50 cm)、40~50 cm深层施磷6个处理,比较了分层施磷的效应。结果表明,分层施磷明显促进了冬小麦生长发育,提高了地上部和根系干重,增加了下层根比例;与深层施磷、表层施磷和单施磷肥相比,分层施磷处理产量分别增加7.46%、16.16%和75.81%,磷素农学利用分别提高156.20%、43.71%和297.11%。分层施磷可提高冬小麦产量,提高磷肥利用效率。

关 键 词:小麦  磷肥  生长  产量  分层施肥  

Effects of Placing Phosphorus Fertilizer in Different Soil Layers on Winter Wheat Growth and Yield
XI Tian-yuan,LI Yong-shan,XIE San-gang,LIU Qing-yun,ZHAO Hai-zhen. Effects of Placing Phosphorus Fertilizer in Different Soil Layers on Winter Wheat Growth and Yield[J]. Journal of Agricultural Science and Technology, 2016, 18(3): 112-118. DOI: 10.13304/j.nykjdb.2015.734
Authors:XI Tian-yuan  LI Yong-shan  XIE San-gang  LIU Qing-yun  ZHAO Hai-zhen
Affiliation:1.Cotton Research Institute, Shanxi Academy of Agricultural Sciences, Shanxi Yuncheng 044000; 2.Yuncheng Agricultural Vocational and Technical College, Shanxi Yuncheng 044000, China
Abstract:In order to study the effects of placing phosphorus fertilizer in different soil layers on winter wheat growth and yield with PVC tubes in a field, this study designed six treatments of blank control, single N at 0~20 cm depth, single P at 0~20 cm depth, subsurface manuring N and P at 0~20 cm depth, manuring P by layers at 0~20 cm,20~40 cm and 40~50 cm, and deep placing P at 40~50 cm in soil. The results showed the treatment of manuring phosphorus fertilizer by layers at 0~20 cm,20~40 cm and 40~50 cm depth in soil improved winter wheat growth, increased weights of aboveground parts and roots, improved root ratios in deeper soil layers. Compared with deep placing phosphorus at 40~50 cm, subsurface manuring and single phosphorus treatment, wheat yield of manuring phosphorus fertilizer by layers at 0~50 cm depth in soil increased 7.46%, 16.16% and 75.81%, respectively, and P agronomic efficiency (PAE) increased 156.2%,43.71% and 297.11%, respectively. Therefore, manuring phosphorus fertilizer by layers at 0~50 cm depth in soil improved winter wheat growth, yield and phosphorus efficiency.
Keywords:wheat  phosphorus  growth  yield  manuring layers  
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