ISWC OpenIR  > 水保所知识产出(1956-2013)
不同降水年型下长期施肥旱地小麦产量效应
胡雨彤1,2; 郝明德; 王 哲1; 付 威4
2017
Source Publication应 用 生 态 学 报
Volume28Issue:1Pages:135-141
Abstract

以黄土高原 30 年长期肥料定位试验为基础,依据降水将生育年划分为干旱年、平水
年和丰水年,研究不同施肥方式对黄土高原冬小麦产量、肥料贡献率和降水利用率的影响.结
果表明: 小麦连续种植 30 年中,氮磷配施和氮磷钾配施下小麦产量、肥料贡献率和降水利用
率显著高于不施肥和单施肥处理,氮磷钾配施下小麦产量、肥料贡献率和降水利用率分别达
到 3480 kg·hm
-2
、61.45 kg·kg
-1
、6.13 kg·mm
-1
·hm
-2
;不同降水年型下,丰水年小麦产量、
肥料贡献率和降水利用率相对较高;使用逐步回归分析可知,不同降水年型下小麦产量主要
受氮磷肥施用量、休闲期降水和越冬期降水影响.黄土旱塬可以通过提高氮磷用量同时适当
施用钾肥,以及在休闲期做好蓄水保墒工作来提高小麦产量.

Other Abstract

 Based on 30 years long⁃term fertilization experiment on the semiarid Loess Plateau in
China, we studied the effect of different fertilizer treatments on the winter wheat yield, fertilizer
contribution rate (FCR) and precipitation use efficiency (PUE) in different precipitation years
(drought, normal and wet years). The result showed that the wheat yield, FCR and PUE were sig⁃
nificantly higher in nitrogen + phosphorus (NP) and nitrogen + phosphorus +potassium (NPK)
treatments than in control (CK) and phosphorus (P) treatments when winter wheat was planted for
30 consecutive years. The wheat yield, FCR and PUE in NPK treatment were highest, with values
of 3480 kg·hm
-2
, 61.45 kg·kg
-1
and 6.13 kg·mm
-1
·hm
-2
, respectively, and those in the wet
years were higher than in drought and normal years. The stepwise regression analysis showed that
wheat yield was mainly influenced by the amount of nitrogen, phosphorus input and precipitation
during fallow period and wintering period. Accordingly, increasing nitrogen and phosphorus input
accompanying with potassium and water conservation practices during the fallow period could im⁃
prove the wheat yield on the semiarid Loess Plateau in China.

Keyword小麦产量 降水年型 肥料贡献率 降水利用率 逐步回归分析
Language中文
Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/8362
Collection水保所知识产出(1956-2013)
Affiliation1.中国科学院水利部水土保持研究所, 陕西杨凌 712100
2.中国科学院大学, 北京 100049
3.西北农林科技大学水土保持研究 所, 陕西杨凌 712100
4.西北农林科技大学资源与环境学院, 陕西杨凌 712100
First Author Affilication中国科学院水利部水土保持研究所
Recommended Citation
GB/T 7714
胡雨彤,郝明德,王 哲,等. 不同降水年型下长期施肥旱地小麦产量效应[J]. 应 用 生 态 学 报,2017,28(1):135-141.
APA 胡雨彤,郝明德,王 哲,&付 威.(2017).不同降水年型下长期施肥旱地小麦产量效应.应 用 生 态 学 报,28(1),135-141.
MLA 胡雨彤,et al."不同降水年型下长期施肥旱地小麦产量效应".应 用 生 态 学 报 28.1(2017):135-141.
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