Spatial analysis of soil salinity in a mango irrigated area in semi-arid climate region

Rodrigues, Marcos Sales; Alves, David Castro; Cunha, Jaílson Cavalcante; Lima, Augusto Miguel Nascimento; Cavalcante, Ítalo Herbert Lucena; Silva, Kátia Cristina de Araújo; Melo, Júlio Cesar Ferreira de

doi:10.21475/ajcs.18.12.08.pne1091

Cited by 5 publications

(4 citation statements)

References 22 publications

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“…With the sodic water application, the water-soluble Na + content increased together with the EC e of soil, and subsequently, Na + leached downwards, especially when NaCl water was used (Figure 4). Researchers from different countries have reported a highly positive relationship between soil EC e and water-soluble Na + [48,[57][58][59][60]. In a study conducted for two years, the Na + concentration increased up to 21.6% for three different salt levels in irrigation water, and Na + concentration was consistent with soil EC e [61].…”

Section: Discussionmentioning

confidence: 87%

The Effect of Sodic Water Type on the Chemical Properties of Calcareous Soil in Semi-Arid Irrigated Land

Peker,

Öztürk,

Mamedov

2024

Soil Systems

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Irrigation of calcareous soil with saline–sodic water can modify the composition of the soil solution and exchange complexes in agricultural land of arid and semi-arid regions with low water resources. The objective of this study was to monitor (medium-term) potential changes in a calcareous clay soil irrigated with two types of sodic waters without cropping. Irrigation water with two high sodium adsorption ratios (SAR = 20 and 40) and electrical conductivity (EC < 3 dS m−1) was prepared using NaCl and NaHCO3 salts. The sodic irrigation waters were applied (June–October) in three periods (1, 2, and 4; one period = five irrigations) to bare non-saline soil with drip irrigation during two growing seasons; no irrigation action was taken in the winter–spring rainy season (period 3). Sampling (0–30 cm) was made after each period to determine the changes in soil pH, EC, water-soluble Na+, Ca2+, Mg2+, K+, Cl−, and HCO3−. Relative to the control, irrigation with both sodic waters increased soil pH, EC, and water-soluble Na+ and decreased or did not change water-soluble cations (Ca2+, Mg2+). The Cl− concentration increased rapidly with NaCl-type water application, but it was leached away quickly by winter–spring rains. The HCO3− concentration increased with NaHCO3-type water application, yet it leached out slowly in the rainy period. The movement of HCO3− ions in the upper soil profile (0–30 cm) was significantly slower compared to Cl− ions. Dissolution of slightly soluble soil CaCO3 by irrigation increased the solution concentration of Ca2+ and its mobility, yet the kinetics of processes depended on water type and irrigation period. The released Ca2+ interacted with other cations in the soil, causing further significant positive physicochemical changes in the soil solution and exchange capacity (comparable with control soil) at the end of the irrigation period. The CaCO3 content in the soil would be a long-term guarantee of the Ca2+ resource in soils, even if the amount of water-soluble Ca2+ may decrease for the short-term period during irrigation. The results should be considered for rational irrigation management (with various water qualities) in semi-arid and arid regions.

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Section: Discussionmentioning

confidence: 87%

The Effect of Sodic Water Type on the Chemical Properties of Calcareous Soil in Semi-Arid Irrigated Land

Peker,

Öztürk,

Mamedov

2024

Soil Systems

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“…-Description analysis results Data variability, measured by the CV and based on the limits proposed by Pimentel-Gomez and Garcia (2002), generally indicates great variability of nutrients both in the soil and in the leaf, even in areas considered homogeneous by farmers (Table 2). Evidence of this can be found when Rodrigues et al (2018) identified high variability in soil nutrients in a commercial mango orchard under Alfisol in Bahia state, Brazil. The CV values of leaf nutrient content were similar to those found by Sharma et al (2018) in commercial apple-growing areas in the Himalayas.…”

Section: Resultsmentioning

confidence: 94%

Spatial correlation between soil and leaf macronutrients in semiarid Brazilian mango (Mangifera indica L.) fields

et al. 2021

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Understanding the relationship between the levels of nutrients in the soil and those found in the plant is of fundamental importance for site-specific fertility management in mango (Mangifera indica L.) crop fields. This study aimed to evaluate the spatial distribution of macronutrient contents both in the soil and in the leaf and their correlations in commercial mango orchards under semiarid region conditions and to delimit the management zones using soil and leaf data. The experiment was carried out in three commercial areas in San Francisco Valley, Brazil, cultivated with irrigated mango. Soil samples were collected in 0-0.2 and 0.2-0.4 m depths as well as leaf samples following sample grids. Ca, Mg, K, P, and N contents from soil and leaf samples were determined. Descriptive and geostatistics analyses were performed. Co-kriging was used for the delimitation of management zones. Positive spatial correlations were obtained between soil Ca2+ and leaf Ca contents (R2 = 0.80-0.93), soil K+ and leaf K contents (R2 = 0.35-0.61), and soil Mg2+ and leaf P contents (R2 = 0.51). Negative correlations were observed for soil Mg2+ and leaf Ca contents(R2 = 0.79-0.93) and soil Mg2+ and leaf K contents (R2 = 0.98). The soil 0-0.2 m depth had the greatest influence on mango Ca and K uptake. The negative correlation between soil Mg2+ and leaf Ca shows the competition existing in the plant uptake process. It was possible to delimit specific management zones using co-kriging for the three areas using soil and leaf data.

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“…It was revealed that the salinity in Punjab drops down as uncultivated area decreased during last four decades (Figure 6). Salinity and irrigated areas had also direct but non-significant relationship from 1980 to 2010 and this increase in salinization due to irrigation causes reduction in fruit yield (Rodrigues et al, 2018). Salinity was increased when land was irrigated with poor quality water.…”

Section: Resultsmentioning

confidence: 98%

Dynamics of Salinity and Land Use in Punjab Province of Pakistan

Malik¹,

Tayyab²,

Ullah³

et al. 2021

PJAR

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T he agricultural sector support Pakistan's economy in provision of food for the 211.17 million people (GOP, 2020) and increasing with the pace of 2.10 percent per annum (World Bank, 2015). Over 800 m.ha. of land around the globe is salt-affected either saline or sodic soils or both), associating to over six percent of the land area of the globe (FAO, 2010). Furthermore, around 15 m. ha. of land faces yield reduction due to soil affected in less develop countries (Tilman et al., 2002). High salinity of soil is major environmental issue limiting thedevelopment of agriculture in coastal areas (Hillel, 2000;Yadav et al., 2011). Pakistan has atotal area of 79.6 millionhectare (mha), with 22.05 mha. cultivated land (GOP, 2020) and 6.28 mha affected by salt (GOP, 2012). Salinity has serious socioeconomic repercussions on agricultural communities of the country, which leads to affect living standard, rural urban migration, serious health issues, the collapsing of houses, and disturbing communications and transportation (Hollington, 2001). Selection and breeding for improved tolerance against salinity in different cropsis considered as high priority due to its economic benefits and best alternative. The other strategies to mitigate salinity are costly and unaffordable for the farming community (Ashraf, 2009).

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Spatial analysis of soil salinity in a mango irrigated area in semi-arid climate region

Cited by 5 publications

References 22 publications

The Effect of Sodic Water Type on the Chemical Properties of Calcareous Soil in Semi-Arid Irrigated Land

The Effect of Sodic Water Type on the Chemical Properties of Calcareous Soil in Semi-Arid Irrigated Land

Spatial correlation between soil and leaf macronutrients in semiarid Brazilian mango (Mangifera indica L.) fields

Dynamics of Salinity and Land Use in Punjab Province of Pakistan

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