Assessing the effects of water table depth on water use, soil salinity and wheat yield: Searching for a target depth for irrigated areas in the upper Yellow River basin

Xu, Xu; Huang, Guanhua; Sun, Chengtao; Pereira, Luís S.; Ramos, Tiago B.; Huang, Quanzhong; Yuanyuan, Hao

doi:10.1016/j.agwat.2013.04.004

Cited by 155 publications

(90 citation statements)

References 51 publications

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“…All the collected data was statistically analyzed using the software, the Statistics 8.1. Xuet al [15]. These investigators found that when the WTD was shallower than a certain specific level, salt concentration increased within the root-zone profile with the contributions for CWR made from SWTs.…”

Section: Fig 3 Lysimeter Arrangement At the Experimental Sitementioning

confidence: 99%

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Assessing the Effect of Different Water Table Depths on Water Use, Yield and Water Productivity of the Okra Crop

Gul¹,

Babar

Sarki

et al. 2018

Mehran Univ. res. j. eng. technol.

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An experimental study was carried out on a Lysimeter with the aim of partially meeting WRs (Water Requirements) of the Okra crop through SWT (Shallow Water Table) while maintaining the SWT at various levels below the ground surface. Under the study, CWR (Crop Water Requirement), yield, water productivity, salt accrual and contribution of SWTs towards meeting the CWR are assessed. The study was designed in accordance with the principles of CRD (Complete Randomized Design) with three treatments and four replications. The treatments; viz. T 1 , T 2 , and T 3 consisted of maintaining the WTDs (Water Table Depths) at 45, 60 and 75 cm, respectively, below the ground surface. The crop was irrigated with a good quality water having EC w = 0.50 dS m -1 and pH = 7.3. The results of the study showed that the crop consumed the maximum amount of water under T 1 treatment, followed by T 2 and then by T 3 treatment. Accordingly, the contribution of SWTs towards the CWR is 94.8, 93.2 and 42.9% of the total CWR under the T 1 , T 2 , and T 3 treatments, respectively. Maximum yield is attained under T 3 treatment, followed by T 2 treatment and then by T 1 treatment. Likewise, maximum water productivity is achieved under T 3 treatment, followed by T 2 treatment and then by T 1 treatment. The dry bulk density (ρ ρ ρ ρ ρ d ) of the soil, under T 1 and T 2 treatments, increased slightly; however, it remained unchanged under the T 3 treatment. The EC se (Electrical Conductivity) of the soil increased, whereas, the pH value of the soil decreased under all the treatments. Statistically, significant difference (p < 0.05) is observed in CWR, yield, water productivity, contribution of SWT towards crop water use, plant height and weight of the Okra pod; whereas, the difference in ρ ρ ρ ρ ρ d , EC se , pH and length of the pod is observed as not significant (p > 0.05) under the three treatments. Accordingly, to make profitable use of SWTs, improve WUE and productivity, and maintain soil fertility, the depth of SWT be controlled at 75 cm for growing of the Okra crop. Adapting to this guideline will help in availing the maximum contribution of SWTs towards meeting the CWR and achieve the larger aim of water conservation.

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Section: Fig 3 Lysimeter Arrangement At the Experimental Sitementioning

confidence: 99%

“…al. [15] found that if the WTD is shallower than the 1.0 m, then the salt concentration in root-zone profile increases thereby yields decrease; for optimum growth of wheat, they suggested that WTD be maintained between 1.0-1.5 m.…”

Section: Sgw (Shallow Groundwater) Is An Important Resource Thatmentioning

confidence: 99%

Assessing the Effect of Different Water Table Depths on Water Use, Yield and Water Productivity of the Okra Crop

Gul¹,

Babar

Sarki

et al. 2018

Mehran Univ. res. j. eng. technol.

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“…According to numerous achievements on soil salinization in Northern Yinchuan Plain and semi-arid region [2,5,8], generally, semi-arid climate (F1) is a natural force inducing soil salinization; The parent material of soil (F2) provides salt resources for salinization; terrain and geomorphology (F3) have significant influence on the distribution of salinization; shallow groundwater table depth (F4) is main factor of soil salinization in the study area. In addition, groundwater with high salinity (F5) could accelerate salinization under intense evaporation.…”

Section: Fig1 Location Of the Study Areamentioning

confidence: 99%

“…The Northern Yinchuan Plain is a significant food production base located in the Ningxia, Northwest China. However, soil salinization is one of the most significant problems that affect the agricultural production of the area, which has been restricting the Northern Yinchuan Plain in social and economic development [2].…”

Section: Introductionmentioning

confidence: 99%

Application of analytic hierarchy process on the study of soil salinization in the Northern Yinchuan Plain, China

Huo¹,

Gao²,

Qian

et al. 2015

Proceedings of the 2015 International Conference on Materials, Environmental and Biological Engineering

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Abstract. The Northern Yinchuan Plain is a productive agricultural area of northwest China, which is under threat due to soil salinization. According to the formation and restoring history of soil salinization, the analytic hierarchy process (AHP) was adopted for analyzing the causes of soil salinization and efficiency of various restoring measures. The calculated results of the relative weights of the indicators showed that semi-arid climate and parent material of soil are dominant factors of soil salinization, which account for40.1% and 21.4% respectively. Furthermore, afforestation and planting salt-tolerant plants and improving drainage system were better than other measures, the values were 38.4% and 29.9% respectively. The study showed that AHP method could provide meaningful references for preventing and improving soil salinization in the study area.

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“…This situation does not bode well for the agriculture and food security of the country. Pakistan is not the only country for having such problems many other countries are facing the same threats in this regard as indicated by Xu et al (2013). There is need of high levels of irrigational efficiency in the country to meet reasonable water requirements of its agriculture.…”

Section: Introductionmentioning

confidence: 99%

Demographics Hinder Adoption of Water Management Practices Among the Farmers of Pakistan

Muneer¹,

Ashraf²,

Amir³

2014

JGIASS

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Water plays a pivotal role in the agricultural production which provides food and a source of income to the masses. Unfortunately the under-developed countries, including Pakistan, are facing the water scarcity related problems for which water management techniques are needed. Mere awareness of the water management practices would not resolve the issue of irrigational water scarcity until the farmers would adopt and get benefit from these practices. The present research was carried out to explore the adoption related demographic hindrances among the farmers. The associated links were derived by statistical methods to explore the dependence of adoption on socio-economic characteristics of the farmers. Simple random sampling technique was used to collect sample throughout the selection. Structured interviews were conducted for data collection. Chi-Square test was used for determining the relationship between adoption levels and demographics of the farmers. The adoption of the latest water management practices was found to be associated with selected socioeconomic characteristics i.e. age, education, tenancy status, income of the respondents except size of landholding. Therefore, it is suggested that old aged farmers should be contacted to encourage the adoption of these practices through devoted extension services and education should be promoted at all levels. Last but not the least, credit should be provided to the farmers on easy terms and conditions for implementation of the water saving practices on farm level.

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Assessing the effects of water table depth on water use, soil salinity and wheat yield: Searching for a target depth for irrigated areas in the upper Yellow River basin

Cited by 155 publications

References 51 publications

Assessing the Effect of Different Water Table Depths on Water Use, Yield and Water Productivity of the Okra Crop

Assessing the Effect of Different Water Table Depths on Water Use, Yield and Water Productivity of the Okra Crop

Application of analytic hierarchy process on the study of soil salinization in the Northern Yinchuan Plain, China

Demographics Hinder Adoption of Water Management Practices Among the Farmers of Pakistan

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