干旱区生态环境知识资源中心(Arid): 水磷耦合对藜麦根系生长、生物量积累及产量的影响

Arid

	水磷耦合对藜麦根系生长、生物量积累及产量的影响
其他题名	Effects of Water and Phosphorus Coupling on Root Growth, Biomass Allocation and Yield of Quinoa
	庞春花; 张紫薇; 张永清
来源期刊	中国农业科学
ISSN	0578-1752
出版年	2017
卷号	50 期号:21 页码:4107-4117
中文摘要	【目的】水肥是旱地农业作物高产的主要限制因素,研究水磷耦合对藜麦根系生长、生物量积累以及产量的影响,探明适合藜麦高产的水磷耦合配比,从而为旱地农业藜麦高产提供理论依据。【方法】以藜麦为研究对象,采用盆栽试验,对藜麦整个生长期进行不同灌水(W1、W2、W3分别按照土壤含水量为田间持水量的35% 45%、55%65%、75%85%),不同施磷(PO、Pl、P2、P3分别为0、0.1、0.2、0.4 g P_2O_5·kg~(-1))耦合处理,测定藜麦根系形态和生理指标、生物量积累以及成熟期产量。【结果】(1)在相同灌水处理下,不同根系参数(根系表面积、根系总长度、最大根长、根系直径、根体积)均在P2 (0.2gP_2O_5·kg~(-1))水平下达到最大;在相同施磷水平下,根系最大根长与根系总长均在W2 (土壤含水量为田间持水量的55%65%)下达到最大,根系表面积在低磷水平(PO、P1)下,均表现为W2P0>W3P0, W2P1 >W3P1,高磷水平(P2、P3)下,均表现为W2P2
英文摘要	【Objective】 In arid regions, agricultural plantation is mainly restricted by water and fertilizer. To explore a optimal water/phosphorus ratio and provide a theoretical basis for the high yield of quinoa in arid land. In this study, the effects of water and phosphorus coupling on root growth, biomass allocation and high yield of quinoa (Chenopodium quinoa Willd) were studied.【Method】 Guinoa was taken as an experimental material and pot-culturing experiment were carried out at 3 levels of water irrigation (Wl, W2 and W3 represented 35%-45%, 55%-65% and 75%-85% soil moisture content) and 4 levels of phosphorus fertilizer (P_2O_5 application rates of PO,Pl,P2, P3 were 0,0.1, 0.2 and 0.4 g.kg~(-1)),and root morphological and physiological indexes, biomass allocation and yield under the conditions of 12 different water and phosphorus coupling treatments were compared.【Result】 At the same water irrigation level, the root parameters (root area, total root length, maximum root length,root diameter and root volume) were the highest under P2 treatment. At the same phosphorus level,the maximum root length and total root length reached the maximum under W2 treatment, and root area showed W2P0>W3P0 and W2P1 >W3P1 under low phosphorus treatment(P0,P1). Under high phosphorus treatment (P2,P3) root area showed W2P2
中文关键词	藜麦 ; 水磷耦合 ; 根系 ; 生物量 ; 产量
英文关键词	quinoa water and phosphorus coupling root system biomass yield
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRONOMY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6115531
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/237049
作者单位	山西师范大学生命科学学院, 临汾, 山西 041004, 中国
推荐引用方式 GB/T 7714	庞春花,张紫薇,张永清. 水磷耦合对藜麦根系生长、生物量积累及产量的影响[J],2017,50(21):4107-4117.
APA	庞春花,张紫薇,&张永清.(2017).水磷耦合对藜麦根系生长、生物量积累及产量的影响.中国农业科学,50(21),4107-4117.
MLA	庞春花,et al."水磷耦合对藜麦根系生长、生物量积累及产量的影响".中国农业科学 50.21(2017):4107-4117.