Salinity dynamics and the potential for improvement of waterlogged and saline land in a Mediterranean climate using permanent raised beds

Bakker, Derk; Hamilton, Greg; Hetherington, R.; Spann, Cliff

doi:10.1016/j.still.2010.06.004

Cited by 59 publications

(26 citation statements)

References 25 publications

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“…Suggested agronomic practices for saline soils comprise irrigation at night to avoid evaporation loss (Rhoades, 1999), better cultivation approaches like sowing on raised beds, pre-sowing seed treatments to improve germination even in salt stress environment (Sayre, 2007;Egamberdiev, 2007;Bakker et al, 2010). Improved planting technique not only help to maintain optimize plant population by avoiding excessive crowding but also allow plants to exploit land, light, and other input resources uniformly and efficiently.…”

Section: Intoroductionmentioning

confidence: 99%

“…In salt affected field, reduction in root-zone salinity is one of effective approach to enhance crop emergence and stand establishment (Dong et al, 2008). Raised beds offered a large surface area than ridges and under saline conditions, salt accumulation on top of the beds increased due to upward movement of groundwater driven by evaporation (Deng et al, 2003;Qiao et al, 2006 andBakker et al, 2010). Comparable findings are also stated by (Arif et al, 2001;Oswald et al, 2002;Rasheed et al, 2003) that in maize, ridge planting gave better results than other sowing methods.…”

Section: Bulb Diameter (Cm)mentioning

confidence: 99%

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Response of onion to different nitrogen levels and method of transplanting in moderately salt affected soil

Ahmed

Nawaz

Hussain

et al. 2017

AAS

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Rapid increase in population and consumption, urged upon the agronomists to develop a comprehensive site specific agro technology to boost up production per unit area and quality of daily dietary onion crop in salt affected soils by improving some basic components of the prevailing onion production technology in Pakistan. In this perspective a detailed and systematic series of field studies were undertaken for three consecutive years (2013 -2015) at Soil Salinity Research Institute, Pindi Bhattian, Pakistan to evaluate different nitrogen levels and the cost-effective planting technique for onion production under salt affected conditions. The experiment was laid out in split plot arrangement using randomized complete block design having three replications. Two planting methods, ridge and bed planting and 4 nitrogen levels, 1-recommended dose (RD) of N (90 kg ha -1 ), 2 -75 % N of RD (67.5 kg ha -1 ), 3 -125 % N of RD (112.5 kg ha -1 ), 4 -150 % N of RD (135 kg ha -1 ) were used. Planting methods were kept in main plots and nitrogen levels in sub plots keeping sub-plot size of 4 m x 6 m. Measurements included were: plant height, number of leaves/plants/m -2 , bulb diameter, bulb mass, total bulb yield, number of flowers/umbel, seed mass/plant and 1000-seed mass. Results showed that maximum onion yield and yield attributes were recorded with nitrogen application at rate of 150 & 125 of RD in ridge planting. However nitrogen application at rate of 125 of RD in ridge planting recorded higher economic returns over all the other treatments and is recommended as most cost effective technique for onion production under salt affected soil as compare to other treatments. . Obravnavanja z načini sadnje so bila na glavnih ploskvah, obravnavanja gnojenja z N pa na podploskvah velikost 4 m x 6 m. Meritve so obsegale višino rastlin, število listov/rastlino/m 2 , premer čebule, maso čebul, celokupni pridelek čebul, število cvetov na kobul, maso semena na rastlino in maso 1000 semen. Rezultati so pokazali največji pridelek čebule in njegovih delov pri obravnavanjih z dušikom 150 in 125 % od priporočene doze (RD) in pri sadnji na grebene. Pri tem je obravnavanje z dušikom 125 % od priporočene doze in sadnja na grebene dalo največji ekonomski učinek v primerjavi z drugimi in ga priporočamo kot stroškovno najbolj učinkovit način pridelave čebule v razmerah zasoljenih tal.Ključne besede: čebula; dušikova gnojila; načini sadnje; slanost; analiza stroškov in koristi

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Section: Intoroductionmentioning

confidence: 99%

Section: Bulb Diameter (Cm)mentioning

confidence: 99%

Response of onion to different nitrogen levels and method of transplanting in moderately salt affected soil

Ahmed

Nawaz

Hussain

et al. 2017

AAS

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“…Due to the shallow depth and high salinity of groundwater, efficient desalination system for reclaimed land is necessary. Many scholars used drainage system in salt elimination, but well-canal combined method is the main desalination technology recently [14,15]. For coastal saline soil, desalination technology based on hydraulics was proposed.…”

Section: Rainwater Utilization and Desalinationmentioning

confidence: 99%

Soil Salinization and Mitigation Measures in Land Reclamation Regions

Xu¹,

Xu²,

Fu³

et al. 2016

Soil Contamination - Current Consequences and Further Solutions

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Soil salinization and underground structure erosion usually occur in land reclamation regions, especially under semi-humid climate that annual evaporation is larger than annual rainfall in Northern China. Based on investigations into the status and trends of land reclamation soil along the Bohai Rim, China, this chapter summarizes the evolution of groundwater system and soil environment and analyzes the main reasons contributing to these problems. Physical and mathematical models are established to simulate the mechanism of water-salt migration in land reclamation regions. Results show that evapotranspiration and groundwater discharge during wet seasons are the main driving forces of status of soil salinization. It was pointed out that the key to soil salinity control in the reclamation region was by utilizing rainwater and flood resources to build a longterm leaching mechanism. Meanwhile, in order to rebuild and maintain a healthy and stable ecosystem in the reclaimed areas, it is necessary to design the structure of soil layers in advance, enhance the salt leaching process and plant vegetation according to the local conditions.

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“…No obstante, en ecosistemas con climas mediterráneos también se pueden generar las condiciones para la ocurrencia de este estrés, en los cuales se experimentan dinámicas particulares, donde en el periodo más frío se observa la mayor parte de las precipitaciones, concentrándose hasta un 80 a 90% de la lluvia anual (generando momentos de sobre abundancia de agua), en cambio, el periodo cálido es seco y prolongado (Pérez-Ramos y Marañón, 2009). En este sentido, Bakker et al (2010) señalan eventos de anegamiento en las regiones agrícolas de clima mediterráneo del oeste australiano, en tanto Pizarro et al (2012) destacan la alta ocurrencia de eventos de precipitaciones extremas desde la zona semiárida hasta la zona subhúmeda en el país, siendo las mayores recurrencias en la zona mediterránea.…”

Section: Factores Climáticosunclassified

Anegamiento y su efecto sobre la fisiología, crecimiento y rendimiento de trigo en zonas mediterráneas manejadas en cero labranza

Romero

Silva

Seguel

2016

agrosur

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In the last years the use of no tillage has increased due to several benefits compared to conventional tillage, such as the reduction in farm fossil fuel use, decrease in soil erosion, and the enhancing of soil structure. However, it has been observed that crops on soils that have medium to fine textures and are managed under this system, show a decline in theirs yields in rainy years, compared with conventional tillage. The aim of this work was to collect the necessary information to analyze if the wheat yield decrease in the context of Mediterranean environments is associated with a waterlogging event, noting its main causes and effects on the crop. For this purpose, a review of scientific journals and books related to soil science, plant physiology and agronomy was carried out. According to the information gathered, no tillage in soils with medium to fine textures is linked with a surface compaction, a factor that negatively affects the soil hydrology, suggesting the possibility of waterlogging events during rainy seasons. This condition alters the soil oxygen diffusion, causing a reduction in its concentration and the increase of potentially toxic compounds for wheat. In the plant, waterlogging induces an energy crisis, diminishing the gas exchange and water and nutrients uptake, which leads to restricted growth and yield of the crop.

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Salinity dynamics and the potential for improvement of waterlogged and saline land in a Mediterranean climate using permanent raised beds

Cited by 59 publications

References 25 publications

Response of onion to different nitrogen levels and method of transplanting in moderately salt affected soil

Response of onion to different nitrogen levels and method of transplanting in moderately salt affected soil

Soil Salinization and Mitigation Measures in Land Reclamation Regions

Anegamiento y su efecto sobre la fisiología, crecimiento y rendimiento de trigo en zonas mediterráneas manejadas en cero labranza

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