干旱区生态环境知识资源中心(Arid): NO3-, K+, and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil

Arid

DOI	10.1590/1678-992X-2021-0122
	NO3-, K+, and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil
	da Silva, Alexsandro Oliveira; Silva, Davi Jose; Bassoi, Luis Henrique; de Melo Chaves, Agnaldo Rodrigues
通讯作者	da Silva, AO
来源期刊	SCIENTIA AGRICOLA
ISSN	1678-992X
出版年	2023
卷号	80
英文摘要	Evaluating the effects of N and K supply on grapevines (Vitis vinifera L.) and the techniques for nutritional diagnosis is of great importance for fertigation management of this crop. This study evaluated the effects of N and K fertigation on the soluble concentrations of NO3- and K+ in the petiole sap and on the leaf chlorophyll index in drip irrigated 'Syrah' grapevine (from 17 June 2013 to 25 Nov 2014). The treatments consisted of five levels of N (0, 15, 30, 60 and 120 kg ha(-1)) and K2O (0, 15, 30, 60 and 120 kg ha(-1)), combined in an incomplete 5(2) factorial scheme in 13 combinations and arranged in randomized blocks with four replications. We determined NO3- and K+ concentrations in petiole sap, leaf chlorophyll index, grapevine cluster mass and number per plant, mean grapevine cluster mass, and phenolic composition. High NO3- concentrations contributed positively to grapevine yield; however, increased K+ concentrations caused a negative response of sap. For 120 kg N ha(-1) rate, NO3- in the sap and chlorophyll index showed higher values at the flowering stage, while high values for K+ were observed during the grape-ripening stage.
英文关键词	Vitis vinifera L. fertigation petiole
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000837629200001
WOS关键词	CHEMICAL-COMPOSITION ; NITROGEN APPLICATION ; GROWTH ; IRRIGATION ; POTASSIUM ; NUTRIENTS ; PETIOLE ; SAP
WOS类目	Agriculture, Multidisciplinary
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398571
推荐引用方式 GB/T 7714	da Silva, Alexsandro Oliveira,Silva, Davi Jose,Bassoi, Luis Henrique,et al. NO3-, K+, and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil[J],2023,80.
APA	da Silva, Alexsandro Oliveira,Silva, Davi Jose,Bassoi, Luis Henrique,&de Melo Chaves, Agnaldo Rodrigues.(2023).NO3-, K+, and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil.SCIENTIA AGRICOLA,80.
MLA	da Silva, Alexsandro Oliveira,et al."NO3-, K+, and chlorophyll index in fertigated grapevines in the semi-arid region of Brazil".SCIENTIA AGRICOLA 80(2023).