Soil Salinity: Effect on Vegetable Crop Growth. Management Practices to Prevent and Mitigate Soil Salinization
| Autor: | R. P. Serralheiro, Rui Machado |
|---|---|
| Jazyk: | portugalština |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Irrigation Soil salinity salinity threshold Plant Science lcsh:Plant culture Horticulture 01 natural sciences salinidade irrigation salinity crop salt tolerance rega ion imbalance lcsh:SB1-1110 Dryland salinity vegetable crops horticultura Intensive farming food and beverages Environmental impact of agriculture 04 agricultural and veterinary sciences fertilização Leaching model Salinity Agronomy fertilization 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science Soil salinity control drainage 010606 plant biology & botany |
| Zdroj: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) Agência para a Sociedade do Conhecimento (UMIC)-FCT-Sociedade da Informação instacron:RCAAP Horticulturae, Vol 3, Iss 2, p 30 (2017) |
| Popis: | Salinity is a major problem affecting crop production all over the world: 20% of cultivated land in the world, and 33% of irrigated land, are salt-affected and degraded. This process can be accentuated by climate change, excessive use of groundwater (mainly if close to the sea), increasing use of low-quality water in irrigation, and massive introduction of irrigation associated with intensive farming. Excessive soil salinity reduces the productivity of many agricultural crops, including most vegetables, which are particularly sensitive throughout the ontogeny of the plant. The salinity threshold (ECt) of the majority of vegetable crops is low (ranging from 1 to 2.5 dS m−1 in saturated soil extracts) and vegetable salt tolerance decreases when saline water is used for irrigation. The objective of this review is to discuss the effects of salinity on vegetable growth and how management practices (irrigation, drainage, and fertilization) can prevent soil and water salinization and mitigate the adverse effects of salinity. |
| Databáze: | OpenAIRE |
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