You are here

pot soil

Catalogue: GRDC Final Reports
Transient salinity in soils, characterised by high concentration of salts in the subsoil, varies with depth and changes throughout the season in response to rainfall, surface evaporation, water use by vegetation and the leaching fraction (hydraulic conductivity) of the clay layer... Experiments in our project have shown that transient salinity (accumulation of salt in root zone layers, not influenced by watertable) affects crop yield and growth in dry land regions mainly by reducing water use efficiency of crops through osmotic effect, although toxic effects of individual ions such as sodium can also cause yield reduction... The results indicate that gypsum application improves leaching of salts...
Related categories:
Catalogue: Ground Cover
Figure 1 Growth of wheat plants treated with Hoag land nutrient solutions of varying salinity.. Experiments in our project have shown that transient salinity - accumulation of salt in root zone layers not influenced by the watertable - affects crop yield and growth in dryland regions, mainly by reducing water-use efficiency of crops through osmotic effect... Hoagland solution was used to reduce the specific ion toxicity to a minimal level and find out the effects of osmotic pressure, irrespective of the type of salt...
Related categories:

Associated key phrases