干旱区生态环境知识资源中心(Arid): Nutrients in 'Gigante' forage cactus pear under different saline water irrigation depths and planting densities

Arid

DOI	10.1590/1807-1929/agriambi.v26n5p381-389
	Nutrients in 'Gigante' forage cactus pear under different saline water irrigation depths and planting densities
	Fonseca, Varley A.; Donato, Sergio L. R.; dos Santos, Marcelo R.; Oliveira, Carlos M.; Kondo, Marcos K.; Cotrim, Carlos E.
通讯作者	Fonseca, VA
来源期刊	REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL
ISSN	1415-4366
EISSN	1807-1929
出版年	2022
卷号	26 期号:5 页码:381-389
英文摘要	Climate variability tends to increase the occurrence of extreme drought conditions in semi-arid regions, thereby compromising crop yield, including that of drought-tolerant plants such as forage cactus pear. Irrigation of cactus with saline water has enabled good results, and its combination with changes in planting densities may promote changes in the production response of this crop. A field experiment spanning two crop cycles was carried out to evaluate nutrient concentrations in 'Gigante' forage cactus pear (Opuntia ficus-indica Mill) under different saline water irrigation depths and planting densities. A randomized block design was used with treatments arranged in split-split plots. Two irrigation intervals (7 and 14 days) were assigned to plots, four planting densities (20,000; 40,000; 60,000 and 80,000 plants ha-1) to subplots, and four irrigation depths of saline water of electrical conductivity 2.91 dS m-1 (0, 11, 22 and 33% of reference evapotranspiration) to sub-subplots. The irrigation depths were applied only in the period of the year without rain. Intermediate planting densities (43,002 and 54,687 plants ha-1) promote lower P, Ca and Fe concentrations in cladode tissues of forage cactus pear. Irrigating 'Gigante' cactus forage with saline water up to 33% ETo increases the concentrations of N, P, Ca, Mg, B, Cu, Mn and Zn in cladode tissues. Irrigation levels between 16 and 25% of ETo with saline water resulted in the highest concentrations of K, S and Na.
英文关键词	Opuntia ficus-indica Mill semi-arid region water stress nutritional status
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000760944800009
WOS关键词	OPUNTIA-FICUS-INDICA ; DIFFERENT SPACINGS
WOS类目	Agricultural Engineering
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/2XILL650/394283
推荐引用方式 GB/T 7714	Fonseca, Varley A.,Donato, Sergio L. R.,dos Santos, Marcelo R.,et al. Nutrients in 'Gigante' forage cactus pear under different saline water irrigation depths and planting densities[J],2022,26(5):381-389.
APA	Fonseca, Varley A.,Donato, Sergio L. R.,dos Santos, Marcelo R.,Oliveira, Carlos M.,Kondo, Marcos K.,&Cotrim, Carlos E..(2022).Nutrients in 'Gigante' forage cactus pear under different saline water irrigation depths and planting densities.REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL,26(5),381-389.
MLA	Fonseca, Varley A.,et al."Nutrients in 'Gigante' forage cactus pear under different saline water irrigation depths and planting densities".REVISTA BRASILEIRA DE ENGENHARIA AGRICOLA E AMBIENTAL 26.5(2022):381-389.