Types and Distribution of Calcareous Soil in Egypt

Wassif, M. M.; Wassif, Omnia Mohamed

doi:10.1007/978-3-030-73161-8_3

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…Sulphur uptake, reductive assimilation and integration into cysteine and methionine are the central processes that direct oxidized and reduced forms of organically bound S into their various functions (Capaldi et al, 2015). On the other hand, elemental S has used for the reclamation and improvement of sodic and calcareous soils (Wassif et al, 1993). Saleh (2001) reported that sulphur has a favorable effects on promoting nutrient availability in soils, use of S as a nutrient and soil acidifier under used of natural sources as RP has recently gained importance in agricultural production (Atilgan et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Use of Gypsum and Sulphur for Improving Rock P Efficiency and Their Effect on Wheat Productivity and Soil Properties

El-Sheref¹,

Awadalla²,

Mohamed³

2019

Alexandria Journal of Soil and Water Sciences

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Two field experiments were conducted in the Experimental Farm of Sids, Agricultural Research Station, ARC, Beni-Suef Governorate, Egypt on wheat (Triticum aestivum L.) to evaluate the effect of gypsum (0.0, 2.5 and 5.0 ton/fed) and sulphur (0.0, 200 and 300 kg/fed) on the efficiency of natural rock P at rate of (0.0 and 400 kg/fed), under the slightly alkaline soil and their effect on wheat productivity and some soil properties and fertility after wheat harvest. The results show that added 400kg rock P increased wheat growth (plant height and dry weight/plant), yield components (number of spikes/m 2 , number of grains/spike and 1000-grain weight), yields (grain and straw), nutrients uptake (N, P and K uptake in grains and/or straw) and soil available P after harvest. Increasing gypsum levels improved all studied growth parameters, yields and yield components, nutrients uptake as well as improved soil reaction , salinity and soil available P after harvest . Sulphur application increased plant height, dry weight/plant, number of spikes/m 2 , nutrient uptake, soil reaction and soil available P. Mixed gypsum or sulphur with natural rock P enhanced its effect on increasing wheat productivity and some soil properties and phosphorus availability after wheat harvest. The treatment of 400 kg rock P + 5.0 t/fed gypsum seems to be the favorable treatment for maximizing the wheat productivity and enhancing soil properties.

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Section: Introductionmentioning

confidence: 99%

Use of Gypsum and Sulphur for Improving Rock P Efficiency and Their Effect on Wheat Productivity and Soil Properties

El-Sheref¹,

Awadalla²,

Mohamed³

2019

Alexandria Journal of Soil and Water Sciences

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“…The sulphuric acid reacts with CaCO 3 releasing CO 2 into the atmosphere, thereby reducing native lime content of calcareous sandy soil Soaud et al 2011;Yang et al 2010). Active, reactive CaCO 3 is the most significant property of CaCO 3 that has a significant impact on all soil processes that occur within chemical, pedogenic, and rhizosphere levels (García-Montero (Carter 1981;Farrag and Bakr 2021;Wassif and Wassif 2021). However, the soil's inherited chemical properties are more affected by active/total CaCO 3 than total CaCO 3 and active CaCO 3 alone, because it represented the actual active portion of CaCO 3 , which governs and affects most chemical properties.…”

Section: Discussionmentioning

confidence: 99%

Amelioration with nano-sulfur suspensions mitigates calcium carbonate of calcareous sandy soil

EL-Madah,

Ibrahim,

Abd El-Halim

2024

Egypt.J. Soil Sci.

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USE of nano-sulfur (NS) as a suspension to mitigate calcium carbonate (CaCO 3 ) of calcareous sandy soil is a new strategy and has not yet been tested. In a pot experiment, this study evaluated four NS suspensions containing 15, 30, 60, and 90 kg NS ha −1 , plus the control (distilled water only, 0 NS). Pots were incubated under laboratory conditions for two months. Then, total, active, and active/total CaCO 3 , as well as the CaCO 3 -related properties were estimated. The suspension containing 90 kg NS ha −1 was superior, while that containing 30 kg NS ha −1 was optimum. However, from an economic perspective, the suspension containing 15 kg NS ha −1 was preferred. With the optimum suspension, active, total, and active/total CaCO 3 reduced by about 24%, 40%, and 22% compared to the control, respectively. Furthermore, the CaCO 3 -related properties, such as pH decreased by 0.48 unit and sodium adsorption ( Na-adsorption ) ratio by 18%, while soluble Ca 2+ , K + , SO 4 2− , water stable aggregate index, and macro-to micro-pores ratio increased by about 100%, 44%, 19%, 33%, and 60% compared to the control, respectively. In general, the optimal active CaCO 3 for better soil properties improvement is less than 10%. The NS suspension has a high corrective power on CaCO 3 and its related properties in the short term (60 days). However, regular application is recommended to continue pH reduction and neutralize CaCO 3 . Therefore, NS suspension may be an effective option when an immediate reaction from the amendment is needed, especially at critical stages of growth.

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Modeling crop suitability under micro irrigation using a hybrid AHP-GIS approach

Abuzaid

El-Husseiny

2022

Arab J Geosci

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Crop suitability analysis using novel models is a pillar for sustainable land-use planning. In this work, the analytical hierarchy process (AHP) was integrated with GIS to produce suitability maps for wheat and maize under sprinkler irrigation and broad bean under drip irrigation. The study was conducted in an arid area, west Nile Delta of Egypt. The characteristics of local climate, landscape, and groundwater quality were matched with crop requirements and assigned scores. A GIS-based model was implemented to integrate scores and AHP weights and generate crop suitability maps. The climate conditions fitted optimum crop requirements; however, slight slope limitations affected wheat and maize. The electrical conductivity (EC), exchangeable sodium percentage, and CaCO3 were the most important soil factors affecting broad bean, and these factors besides coarse fragments affected wheat and maize. The EC, Na+, and Cl– were the most influential factors for wheat and maize irrigation, while EC and sodium adsorption ratio had the greatest priority for broad bean irrigation. Irrigation water quality had the highest specific weight (0.38) followed by soil (0.36), slope (0.15), and climate (0.10). The final suitability maps showed that 97 and 3% of the total area were suitable (S2) and moderately suitable (S3) for wheat, respectively. Moreover, 85 and 15% of the total area fitted the S2 and S3 classes for broad bean. For maize, 36 and 64% of the total area fitted the S2 and S3 classes. Integrating AHP and GIS would provide effective land-use planning and also suggest proper management practices in arid areas.

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Types and Distribution of Calcareous Soil in Egypt

Cited by 3 publications

References 17 publications

Use of Gypsum and Sulphur for Improving Rock P Efficiency and Their Effect on Wheat Productivity and Soil Properties

Use of Gypsum and Sulphur for Improving Rock P Efficiency and Their Effect on Wheat Productivity and Soil Properties

Amelioration with nano-sulfur suspensions mitigates calcium carbonate of calcareous sandy soil

Modeling crop suitability under micro irrigation using a hybrid AHP-GIS approach

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