Soil salinization is a global problem affecting approximately 10% of agricultural soils, particularly in irrigated aridlands. This study quantified salt-loading by flood irrigation and soil fertilizers/amendments versus atmospheric deposition, studied controls solute transport salt buildup, evaluated the effectiveness gypsum application improving sodicity arid southwestern United States. Study ...

The application of phosphogypsum (PG) on sodic soils provides nutrients to the soil, reduces toxic effect Na+, and improves soil properties. Laboratory experiments were performed evaluate effects PG chemical properties soils. treatments arranged in a completely randomized design with five replications. included 0% GR (control), 50% (28.18 g·kg−1), 100% (56.37 150% (84.50 200% (112.74 g·kg−1) ra...

A field study was conducted to evaluate tolerance of pecan rootstocks soil salinity and sodicity. Seven cultivars—Elliott, Giles, Ideal, Peruque, Riverside, ‘Shoshoni, VC1-68—were selected from a range geographic regions origin. The the experimental plot poorly drained, saline–sodic Pima silty clay variant. irrigation water moderately saline mix Gila River local groundwater with an electrical c...

Salt-affected soils, caused by natural or human activities, are a common environmental hazard in semi-arid and arid landscapes. Excess salts in soils affect plant growth and production, soil and water quality and, therefore, increase soil erosion and land degradation. This research investigates the performance of five different semi-empirical predictive models for soil salinity spatial distribu...

Information based agriculture (IBA) includes matching of agronomic practices with soil and water characteristics and their spatial variability for enhancing productivity. An attempt was made to derive agriculture management zones based on soil and water characteristics for sustainable agricultural production in Mansa district (Punjab, India). Based on physiographic analysis and semi detailed so...

Seal formation at the soil surface during rainstorms reduces rain infiltration and leads to runoff and erosion. An increase in soil sodicity increases soil susceptibility to crusting, runoff, and erosion. Surface application of dissolved polyacrylamide (PAM) mixed with gypsum was found to be very effective in decreasing seal formation, runoff, and erosion. The objective of this study was to inv...

The adverse effects of exchangeable sodium on soil hydraulic conductivity (K) are well known, but at present only sodicity and total electrolyte concentration are used in evaluating irrigation water suitability. In arid areas, high sodicity is often associated with high dissolved carbonate and thus high pH, but in humid areas high sodicity may be associated with low pH. To evaluate the effect o...

This study evaluates the cause of salinization in an irrigation scheme 100 ha supplied from a reservoir. The is located Gumselasa catchment (28 km2), Tigray region, northern Ethiopia. underlain by limestone–shale–marl intercalations with dolerite intrusion and some recent sediments. Water balance computation, hydrochemical analyses water quality methods were used this investigation. Surface wat...

Sodic soils adversely affect crop production over extensive areas of rain-fed cropping worldwide, with particularly large in Australia. Crop phenotyping may assist identifying cultivars tolerant to soil sodicity. However, studies identify the most appropriate traits and reliable tools on sodic are limited. Hence, this study evaluated ability multispectral, hyperspectral, 3D point cloud, machine...