Irrigation Water Quality and Soil Structural Stability: A Perspective with Some New Insights

Rengasamy, Pichu

doi:10.3390/agronomy8050072

Cited by 39 publications

(20 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, ESP is not always well correlated with soil dispersion due to the impact of other soil parameters (e.g., soil salinity, organic matter, other soil cations) (Rengasamy, 2018;Rengasamy et al, 2016), and the identification of alternative soil measure/s is difficult due to the range of physical and chemical factors that can impact dispersion and yield. One emerging alternative is to identify consistently low yielding locations (i.e., season after season) using farmer observation, tractor mounted yield monitors, or proximal/remote sensors.…”

Section: Relative Tolerance Parameter Measured and Experiments Type Referencesmentioning

confidence: 99%

“…However, while many studies have examined the relationships between ESP and soil parameters such as hydraulic conductivity or soil strength, only a limited number have determined critical limits for yield of specific crops. In addition, the use of ESP to indicate critical limits can be problematic as other soil characteristics (e.g., salinity, organic matter, other soil cations) also affect soil dispersive behaviour (Rengasamy, 2018;Rengasamy, Tavakkoli, & McDonald, 2016), meaning that ESP may not always correlate well with yield loss. Direct measures that classify soils according to their degree of dispersion when immersed in water can overcome some of the disadvantages of ESP and help account for differences in soil chemistry among soils (Field, McKenzie, & Koppi, 1997;Rengasamy, Greene, Ford, & Mehanni, 1984;Zhu, Marchuk, & Bennett, 2016).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Review of crop‐specific tolerance limits to acidity, salinity, and sodicity for seventeen cereal, pulse, and oilseed crops common to rainfed subtropical cropping systems

et al. 2021

View full text Add to dashboard Cite

Soil constraints limit crop water and nutrient extraction and lead to yield loss globally.In rainfed agriculture, the selection of crop species more likely to yield well under constrained conditions is an important management tool. However, information on the most appropriate crops is often difficult to access due to its publication in a wide range of disparate sources and the various measures of crop tolerance used. This study aimed to improve our ability to identify crops for constrained areas in rainfed subtropical cropping systems by compiling published information that had assessed the grain yield response to acidic, saline, or sodic conditions of 17 cereal, pulse, and oilseed crops. This information was used to develop a 'traffic light' system for salinity and acidity to provide guidance on when soil pH or the electrical conductivity of a saturated soil extract (EC e ) is likely to be 'good', 'potentially limiting', or 'poor' for grain yield. Crops were also ranked according to their likely ability to yield well under saline, acidic, or sodic conditions. For all crops, the point at which grain yield was affected by soil constraints was variable and there was often only a small amount of published information available to help guide the identification of tolerance limits and rankings, particularly for sodicity. Many studies were also conducted under experimental conditions that differed from rainfed farming, which can affect the transferability of results. Confidence in the tolerance limits and rankings is thus only moderate and further work is required to confirm their applicability.

show abstract

Section: Relative Tolerance Parameter Measured and Experiments Type Referencesmentioning

confidence: 99%

mentioning

confidence: 99%

Review of crop‐specific tolerance limits to acidity, salinity, and sodicity for seventeen cereal, pulse, and oilseed crops common to rainfed subtropical cropping systems

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Independent of the irrigation method, using STP effluent for irrigation on soils with a high clay content may deteriorate the soil quality (Rengasamy 2018).…”

Section: Irrigation Systemsmentioning

confidence: 99%

Natural Purification Through Soils: Risks and Opportunities of Sewage Effluent Reuse in Sub-surface Irrigation

Narain-Ford

Bartholomeus

Dekker

et al. 2020

Reviews of Environmental Contamination and Toxicology

View full text Add to dashboard Cite

At global level there are several guidelines, i.e., non-mandatory recommendations, available concerning water reuse (Table 1). In 2006 the World Health Organization (WHO) published guidelines on the safe use of wastewater, intended as a tool for decision-makers and regulators to provide a consistent level of health protection in different settings. The guidelines can be adapted for implementation under specific environmental, sociocultural, and economic conditions at a national level (WHO 2006). The United States Environmental Protection Agency issued the last version of the "Guidelines for Water Reuse" (USEPA 2012). These guidelines include a wide range of reuse applications (e.g., agricultural irrigation and aquifer recharge) and apply similar approaches as described by the WHO (2006) and the Australian Government Initiative (2006) for controlling health and environmental risks. The most recent global guidelines for STP effluent reuse in agricultural irrigation were published in 2015 by the International Organization for Standardization (ISO 2015). These ISO guidelines include water quality requirements for CoECs. Remarkably, the State of California overtakes these global guidelines with specific regulations for CoECs (California Water Boards 2019). Consequently, these California water reuse regulations are being used as a global benchmark for the development of water reuse regulations worldwide. Noteworthy, California recently signed the Senate Bill No. 996 (Legislative Counsel Bureau 2018), which encourages communities to reuse STP effluent on-site. 2.2 Europe At European level the need to address management of water resources to prevent scarcity and droughts was acknowledged in the EU's Blueprint to safeguard Europe's water resources (Table 1). In this Blueprint the need to use STP effluent as an alternative water resource for irrigation purposes is re-emphasized (European Commission 2012). Six EU Member States

show abstract

“…Generally, the beneficial cation effects on soil stability and hydraulic properties relate to the type of exchangeable cations in the following order Ca 2+ > Mg 2+ > K + > Na + (Rengasamy and Marchuk, 2011;Quirk and Schofield, 1955). Due to the dominance of sodium salts in many sources of irrigation water, sodium-related parameters such as exchangeable sodium percentage (ESP) of soils and sodium adsorption ratio (SAR) of irrigation water have been commonly used to study the effects of sodium in irrigation water on soil structural stability (Rengasamy, 2018;Shainberg and Letey, 1984;Shainberg and Shalheved, 1984). SAR of the irrigation water is used as a measure of the risk of sodicity/alkalinity of irrigation water.…”

Section: Introductionmentioning

confidence: 99%

Influence of electrolyte concentration, sodium adsorption ratio and cation combinations on relative saturated hydraulic conductivity of saline soil

Čelková¹,

Zvala²

2021

AHS

View full text Add to dashboard Cite

Soil hydraulic conductivity (K) is an important parameter in the transport of water and salts in the soils. This study was performed to determine the influence of water quality parameters flowing through the soil on the relative saturated hydraulic conductivity (rKs) of salt affected soil. Its aim was to examine the effect of electrolyte concentration at different SAR (sodium adsorption ratio) values of Na-Ca and Na-Mg leaching solutions on changes in rKs of saline soil. The experiments were conducted under laboratory conditions in packed soil columns with saline soil from the Jatov locality, Slovakia. The leaching solutions at SAR values of 5, 10, 20, 30, 40 and at the concentrations of Na-Ca and Na-Mg binary electrolytes of 20, 40, 60, 100 and 120 mmol l -1 were used. The concentration and composition of the water flowing through the soil showed a significant influence on relative saturated hydraulic conductivity of the soil used in the experiments. The results of the measurements indicated a decrease in rKs by gradually decreasing the electrolyte concentration and with increasing SAR values of the percolating electrolytes of both cationic pair Na-Ca and Na-Mg. The laboratory experiments also showed that the values of rKs of the soil measured with Na-Ca solutions were higher than those measured with Na-Mg solutions.

show abstract

Irrigation Water Quality and Soil Structural Stability: A Perspective with Some New Insights

Cited by 39 publications

References 48 publications

Review of crop‐specific tolerance limits to acidity, salinity, and sodicity for seventeen cereal, pulse, and oilseed crops common to rainfed subtropical cropping systems

Review of crop‐specific tolerance limits to acidity, salinity, and sodicity for seventeen cereal, pulse, and oilseed crops common to rainfed subtropical cropping systems

Natural Purification Through Soils: Risks and Opportunities of Sewage Effluent Reuse in Sub-surface Irrigation

Influence of electrolyte concentration, sodium adsorption ratio and cation combinations on relative saturated hydraulic conductivity of saline soil

Contact Info

Product

Resources

About