干旱区生态环境知识资源中心(Arid): Cactus-sorghum intercropping combined with management interventions of planting density, row orientation and nitrogen fertilisation can optimise water use in dry regions

Arid

DOI	10.1016/j.scitotenv.2023.165102
	Cactus-sorghum intercropping combined with management interventions of planting density, row orientation and nitrogen fertilisation can optimise water use in dry regions
	Freire da Silva, Thieres George; Medeiros, Romulo Satiro de; Arraes, Francisco Dirceu Duarte; Ramos, Clovis Manoel Carvalho; Araujo Junior, George do Nascimento; Jardim, Alexandre Manitoba da Rosa Ferraz; Alves, Cleber Pereira; Campos, Fleming Sena; da Silva, Marcos Vinicius; Florentino de Morais, Jose Edson; Alves de Souza, Carlos Andre; Siqueira e Silva, Servulo Mercier; dos Santos, Djalma Cordeiro; de Carvalho, Ailton Alves; Bastos de Souza, Luciana Sandra
通讯作者	da Silva, TGF
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	895
英文摘要	Some strategies can optimise the use of water in crops under deficit, either by increasing yield or by reducing actual crop evapotranspiration (ET), to promote the sustainable intensification of production systems. The objective was to evaluate how the spacing, planting orientation, nitrogen fertilisation and intercropping strategies impact the dynamics of water in the soil, ET partitioning, and water use indicators for forage cactus and cactus-sorghum intercropping. Four experiments were conducted between 2018 and 2020 in the Brazilian semi-arid region. In the first two sites (I and II), the cladodes of the intercropped forage cactus and sorghum were spaced at 0.10, 0.20, 0.30, 0.40 and 0.50 m with rows-oriented east-west and north-south. In site III, the intercropped rows were spaced at 1.00, 1.25, 1.50 and 1.75 m. Site IV, which contained the forage cactus crop exclusively, was treated with four nitrogen levels (50, 150, 300 and 450 kg N ha-1). The management interventions improved water use more by increasing dry matter than by reducing ET in the cropping system. Intercropping promoted the greatest increase in water productivity (130 %). Increasing N doses in the forage cactus-only crop reduced ET by up to 39 % but increased deep drainage losses by up to 365 %. The most promising management practices for optimising water resources were as follows: spacing of 0.10 m between cactus plants in the intercropping trial under east-west row orientation, as it promoted greater water use efficiency (76 %); spacing of 0.30 m in the north-south orientation; and row spacing of 1.50 m, as it improved water productivity (6.89 kg m-3). Thus, interventions in management should be adopted to optimise water use in intercropping systems with forage cactus, aiming at sustainable intensification in dry environments.
英文关键词	Water complementarity Water productivity CAM-C4 intercropping Semi-arid regions
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001032768400001
WOS关键词	FORAGE CACTUS ; USE EFFICIENCY ; LOESS PLATEAU ; INTERCEPTION LOSS ; YIELD ; MAIZE ; EVAPOTRANSPIRATION ; IRRIGATION ; GROWTH ; DYNAMICS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398538
推荐引用方式 GB/T 7714	Freire da Silva, Thieres George,Medeiros, Romulo Satiro de,Arraes, Francisco Dirceu Duarte,et al. Cactus-sorghum intercropping combined with management interventions of planting density, row orientation and nitrogen fertilisation can optimise water use in dry regions[J],2023,895.
APA	Freire da Silva, Thieres George.,Medeiros, Romulo Satiro de.,Arraes, Francisco Dirceu Duarte.,Ramos, Clovis Manoel Carvalho.,Araujo Junior, George do Nascimento.,...&Bastos de Souza, Luciana Sandra.(2023).Cactus-sorghum intercropping combined with management interventions of planting density, row orientation and nitrogen fertilisation can optimise water use in dry regions.SCIENCE OF THE TOTAL ENVIRONMENT,895.
MLA	Freire da Silva, Thieres George,et al."Cactus-sorghum intercropping combined with management interventions of planting density, row orientation and nitrogen fertilisation can optimise water use in dry regions".SCIENCE OF THE TOTAL ENVIRONMENT 895(2023).