Determining water requirements of biblical hyssop using an ET-based drip irrigation system

Jaafar, Hadi; Khraizat, Zein; Bashour, Isam; Haidar, M.

doi:10.1016/j.agwat.2016.11.008

Cited by 13 publications

(7 citation statements)

References 33 publications

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“…Because agriculture is the largest anthropogenic consumer of fresh water, requiring approximately 80–90% of global fresh water usage , any improvements in efficiency would have significant benefits in freshwater availability. That is, increasing water use efficiency through improved cultural practices and the adoption of novel technologies can result in considerable water savings in the agricultural sector . A major improvement would be to enhance water holding capacity of soils, especially in arid areas.…”

Section: Introductionmentioning

confidence: 99%

Hydrogel Banding Improves Plant Growth, Survival, and Water Use Efficiency in Two Calcareous Soils

El-Asmar

Jaafar

Bashour

et al. 2017

CLEAN Soil Air Water

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Improving water use efficiency in the agricultural sector, particularly in arid regions, is becoming increasingly important in response to increasing global population and concomitant demand for food, water, and land. The authors performed experiments to determine whether the use of super‐absorbent polymers, also known as hydrogels, can increase plant survival, plant growth, and plant water use efficiency. The effect of hydrogel application proportions and application methods on plant survival and growth in clay and sandy clay loam (SCL) soils was investigated. Two pot experiments using Zea mays and Pinus pinea as model plants were performed. The hydrogel was applied at concentrations of 0, 1, 2, 3, and 4 g kg−1 soil in one of two methods: Banding or mixing. Hydrogel effects on water retention in the two soil types were recorded. The results suggest that hydrogel banding at 0.4% application in SCL improves corn's fresh and dry above‐ground biomass by 25%, and prolongs survival time of pine seedlings by 90%. Evapotranspiration was greater in soils banded with hydrogel at 0.4% and water use efficiency increased by 10–13% in both soils. Additionally, hydrogel increased water retention of SCL by up to 33% at 100 kPa, but had negligible effects when applied in clay soils. Accordingly, the efficacy of hydrogels in agriculture water conservation depends on using appropriate application methods and quantities.

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Section: Introductionmentioning

confidence: 99%

Hydrogel Banding Improves Plant Growth, Survival, and Water Use Efficiency in Two Calcareous Soils

El-Asmar

Jaafar

Bashour

et al. 2017

CLEAN Soil Air Water

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“…The crop was planted in November 2014. Origanum has crop growth coefficients that are similar to grass when planted at this density (Jaafar et al 2017).…”

Section: Aub Sitementioning

confidence: 96%

“…Mean annual rainfall at the AREC site is 521 mm. The climate is semiarid, with an average annual grass reference evapotranspiration of 1,300 mm, 70% of which occurs between April and September (Jaafar et al 2017). The experiment at AREC was conducted from August 11 to October 15, 2017.…”

Section: Arec Sitementioning

confidence: 99%

Determining Reference Evapotranspiration in Greenhouses from External Climate

Jaafar

Ahmad

2019

J. Irrig. Drain Eng.

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Estimations of Penman-Monteith reference evapotranspiration (ET oPM) in greenhouses can benefit the operation of these intensive agricultural production systems. Meteorological variables required to calculate ET oPM within greenhouses are seldom available. In this study, meteorological data for two years from two weather stations (one inside a polycarbonate greenhouse and one outdoors) were used to derive relationships between greenhouse ET oPM and outdoor ET oPM plus outdoor solar radiation (measured and extraterrestrial). The results were validated in another greenhouse at a different location in a different year. The two locations represent two different climatic conditions (a coastal subhumid climate and an inland semiarid climate). The results show that ET oPM in ventilated greenhouses can be predicted from the outdoor ET oPM , extraterrestrial solar radiation, and the ventilation rate within the greenhouse; it can also be predicted from measured solar radiation and the square root of greenhouse transmissivity using an equation developed herein. Under typical ventilated conditions, greenhouse ET oPM was found equal to 60% of outdoor ET oPM , with solar radiation accounting for more than 90% of the variance. Under unventilated conditions, the relationship is more complex; however, ET oPM can still be estimated satisfactorily from outdoor solar radiation R s and greenhouse transmissivity measurements. These findings have potential applications in terms of providing guidelines for predicting greenhouse ET oPM from outdoor climate variables or from outdoor ET oPM. The estimations could enhance climate-smart agriculture applications in subhumid and semiarid environments while minimizing in-greenhouse meteorological data requirements.

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“…Localized irrigation by the drip method is a type of high efficiency practice in the availability of water for crops at low pressure, flow and expenditure on electricity, which can save 65% of the water applied compared to conventional irrigation methods. This type of system causes minimal disturbance to the soil structure, reduces losses due to runoff and evaporation, making the plants to have a better use of the water that is available, since the crop yield is related to the optimal water supply (Gu et al, 2017;Jaafar et al, 2017;Mostafa et al, 2017).…”

Section: Use Of Irrigation In Arid and Semi-arid Environments As A Strategy To Forage Productionmentioning

confidence: 99%

Interação de agroecossistema consorciado com palma-sorgo em ambiente semiárido: uma revisão

Jardim

Silva

Souza

et al. 2020

J. Env. Anal. Progr.

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Em regiões áridas e semiáridas as condições climáticas e salinização do solo e da água proporcionam declínios na produção de forragem e comprometem o rendimento dos rebanhos. Logo, o uso de espécies forrageiras adaptadas e de alto valor nutricional, torna-se uma alternativa para manter a disponibilidade de alimentos em períodos sazonais. Dentre estas espécies, a palma forrageira é um alimento recomendado para os ruminantes, devido ao alto teor de água em suas estruturas, boa aceitabilidade e baixo custo de produção. A cultura do sorgo, também apresenta elevado potencial forrageiro, alta produção de matéria seca, baixa exigência hídrica, e adaptabilidade à consorciação, auxiliando em melhores produções em ambientes áridos e semiáridos. A utilização de sistemas consorciados acrescidos com a irrigação é de grande relevância para o manejo sustentável da pecuária local, uma vez que esse tipo de sistema maximiza o rendimento de forragem das áreas produtivas. Assim, objetivou-se com a presente revisão ressaltar a importância de estudos relacionados ao consórcio palma-sorgo em condições irrigadas no semiárido para subsidiar políticas de produção contínua de forragem. Os achados dessa revisão encorajam pesquisas no planejamento agrícola de área em ambientes negligenciados sob condições semiáridas com o consórcio de palma-sorgo para produção de forragem.

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Determining water requirements of biblical hyssop using an ET-based drip irrigation system

Cited by 13 publications

References 33 publications

Hydrogel Banding Improves Plant Growth, Survival, and Water Use Efficiency in Two Calcareous Soils

Hydrogel Banding Improves Plant Growth, Survival, and Water Use Efficiency in Two Calcareous Soils

Determining Reference Evapotranspiration in Greenhouses from External Climate

Interação de agroecossistema consorciado com palma-sorgo em ambiente semiárido: uma revisão

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