Effect of Fertigation on Soil Salinization and Aggregate Stability

Barradas, J. M. Moreira; Abdelfattah, Ahmed; Matula, Svatopluk; Dolezal, F.

doi:10.1061/(asce)ir.1943-4774.0000806

Cited by 26 publications

(11 citation statements)

References 17 publications

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“…Globally, and in particular in dry areas, high quality water is in short supply and the use of marginal quality water such as brackish groundwater and treated wastewater for irrigation is becoming ever more common [85]. On top of that, overuse of fertilizers through irigation systems (fertigation) may also increase solute concentration in the irrigation water as farmers frequently add fertilizers in quantities much higher than plant demand [86][87][88][89]. Consequently, the risk of soil salinization due to unsustainable irrigation practices with water rich in salt is rising [9].…”

Section: Soil Salinization By Irrigation Watermentioning

confidence: 99%

Cropland Soil Salinization and Associated Hydrology: Trends, Processes and Examples

Nachshon

2018

Water

151

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While global food demand and world population are rapidly growing, land potential for cropping is steadily declining due to various soil degradation processes, a major one of them being soil salinization. Currently, approximately 20% of total cropland and 33% of irrigated agricultural land are salinized as a result of poor agricultural practices and it is expected that by 2050, half of the croplands worldwide will become salinized. Thus, there is a real need to better understand soil salinization processes and to develop agricultural practices that will enable production of the needed amount of food to feed humanity, while minimizing soil salinization and other degradation processes. The major sources of solutes in agricultural environments are: (i) the soil itself, and the parent geological material; (ii) shallow and salt rich groundwater; and (iii) salt rich irrigation water. The salinization of soil is a combination of transport of solutes towards the root zone to replenish evaporation and transpiration and limited washing of the soil by rain or irrigation. Therefore, most salinized soils are present in arid and semi-arid environments where precipitation is low and evaporation is high. In this manuscript, examples of soil salinization processes from croplands around the world will be presented and discussed to bring attention to this important topic, to present the latest scientific insights and to highlight the gaps that should be filled, from both scientific and practical perspectives.

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Section: Soil Salinization By Irrigation Watermentioning

confidence: 99%

Cropland Soil Salinization and Associated Hydrology: Trends, Processes and Examples

Nachshon

2018

Water

151

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“…Unfortunately, human interventions have also promoted the increment of saline lands. Wrong irrigation practices, poor drainage conditions [ 6 ], the use of fertilizers [ 7 ], mismanagement of treated wastewater [ 8 ], industrial [ 9 ], and mining operation effluents enriched with a salt contribute to the salinity increment in the soil and water [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Jasmonates and Plant Salt Stress: Molecular Players, Physiological Effects, and Improving Tolerance by Using Genome-Associated Tools

Delgado

Mora‐Poblete

Ahmar

et al. 2021

IJMS

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Soil salinity is one of the most limiting stresses for crop productivity and quality worldwide. In this sense, jasmonates (JAs) have emerged as phytohormones that play essential roles in mediating plant response to abiotic stresses, including salt stress. Here, we reviewed the mechanisms underlying the activation and response of the JA-biosynthesis and JA-signaling pathways under saline conditions in Arabidopsis and several crops. In this sense, molecular components of JA-signaling such as MYC2 transcription factor and JASMONATE ZIM-DOMAIN (JAZ) repressors are key players for the JA-associated response. Moreover, we review the antagonist and synergistic effects between JA and other hormones such as abscisic acid (ABA). From an applied point of view, several reports have shown that exogenous JA applications increase the antioxidant response in plants to alleviate salt stress. Finally, we discuss the latest advances in genomic techniques for the improvement of crop tolerance to salt stress with a focus on jasmonates.

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“…The technique of fertilization and fertigation are two of the most important techniques in crop production, mainly due to their positive impact on yield and quality of production (Incrocci, Massa, and Pardossi, 2017). However, constant applications of fertilizer salts to soil have led to the contamination of surface and groundwater, as well as to the salinization of the soil itself (Moreira-Barradas, Abdelfattah, Matula, and Dolezal, 2015;Singh, 2020). This corroborates the need for a better control of nutrition programs.…”

Section: Introductionmentioning

confidence: 99%

Relation between soil solution composition and petiole cellular extract of crops in western Mexico

Benavides-Mendoza

Alba-Romenus

Francisco-Francisco

2021

Terra

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Crop fertilization greatly impacts food production. However, insufficient applications can lead to poor yields. On the other hand, an excessive application leads to soil and aquifers pollution. In this paper, field studies were carried out to determine the ranges of mineral concentration and the interaction of the ions in the soil solution (SS) and the petiole cellular extract (PCE) in several cultures established in the states of Guanajuato, Colima and Jalisco, Mexico. The hypothesis states that there is a causal relationship between the mineral composition of the soil solution (SS) and the minerals and total soluble solids (TSS) in petiole cellular extract (PCE). The following cultures were studied in this research: avocado, blueberry, broccoli, cauliflower, raspberry, strawberry, lettuce, cantaloupe, papaya, and pepper. For each culture, PCE samples and SS samples using a press to break tissue and ceramic tip lysimeters were obtained. The results were processed to obtain ranges of variation within 50% of the closest values to the median. Correlations between the several ion concentrations were analyzed using analysis of variance. The results showed values (mg L-1) of NO3- (40-620), PO43- (17-66), K+ (3-377), Ca2+ (27-582), Na+ (15.3-500), Mg2+ (10-53), Fe3+ (0.6‑1.8), and Zn2+ (2.8-7.4) in soil solution, which allowed obtaining values of NO3- (27-9225), K+ (820-9375), Ca2+ (1.0-650), Na+ (25-620) and TSS (2-13 °Brix) in petiole cellular extract of petiole. Statistically significant correlations were observed between the concentrations of the SS ions regarding the concentrations in PCE in crops suggesting a relationship between the plant nutritive assimilation and cations or anions present in soil solution. The conclusion derived from this study is that ionic concentration ranges registered in the SS and in the PCE provide an approximation to the ranges of nutritional sufficiency for the horticultural crops established in the summer-winter in western Mexico.

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Effect of Fertigation on Soil Salinization and Aggregate Stability

Cited by 26 publications

References 17 publications

Cropland Soil Salinization and Associated Hydrology: Trends, Processes and Examples

Cropland Soil Salinization and Associated Hydrology: Trends, Processes and Examples

Jasmonates and Plant Salt Stress: Molecular Players, Physiological Effects, and Improving Tolerance by Using Genome-Associated Tools

Relation between soil solution composition and petiole cellular extract of crops in western Mexico

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