Abstract A laboratory experiment was carried out at the College of Agriculture, University Anbar, located 43°20‘09.7“E longitude, 33°25‘36.7“N latitude for period from 1/10/2021 to 1/10/2022, study effect date residues, organic acids, and wetting / drying cycles on some physical properties gypsiferous soil. The soil selected site Fallujah palm station that longitude 43º51'. 05. 36 E. 33º17'. 46...

this study investigated the relationship between clay minerals and different soil moisture regimes in gypsiferous soils of fars province in southern iran. the overall climate of the province is arid and semi-arid and, under this condition, parent material is the most important factor affecting clay minerals distribution. beside this factor, climate conditions have determining role too. palygors...

Abstract Laboratory experiments were carried out to study the effect of biochar addition and gypsum content on some hydrophysical properties soil quality index. Soil samples with (G2) 100, (G3) 150, (G4) 200, (G5) 250 (G6) 350 g kg -1 , prepared by mixing a surface sample for depth 0-10 cm (G1) 60 subsurface from 60-100 (G7) 443 at research station College Agriculture / Tikrit University. was i...

gypsum found in the soil beneath the foundation of structures, specially hydraulic structures, can cause serious damage to them. the mechanical behavior of gypsiferous soils has not so far been investigated in detail except for the works of petrukhin (1993). here, it has been tried to investigate the mechanical behavior and the effect of soil being leached on settlement and strength of these ki...

Abstract With the aim of reducing chemical fertilizers and relying on environmentally friendly natural biofertilizers that promote plant growth increase yield, especially in gypsiferous soils spread arid semi-arid regions, which suffer from physical, chemical, fertility, biological problems, turn affect density microorganisms, This experiment was conducted to study efficiency inoculum prepared ...