The cultivation of salt-tolerant rice (sea rice) along beaches has become an effective measure for the restoration and utilization saline-sodic land, so this paper studies effects irrigation nitrogen fertilization on soil Na+ in root zone sea yield, provides a scientific basis planting rice. A pot experiment (two-factor split plot) with salt stress (10 g NaCl/kg soil) was carried out. main plot...

Abstract. Declining soil-saturated hydraulic conductivity (Ks) as a result of saline and sodic irrigation water is major cause soil degradation. While it understood that the mechanisms lead to degradation can irreversible changes in Ks, existing models do not account for hysteresis between rehabilitation processes. We develop first model effect on Ks explicitly includes hysteresis. As such, ide...

Salinization is the accumulation of water-soluble salts in the soil solum or regolith to a level that impacts on agricultural production, environmental health, and economic welfare. Salt-affected soils occur in more than 100 countries of the world with a variety of extents, nature, and properties. No climatic zone in the world is free from salinization, although the general perception is focuse...

Soil salinity due to irrigation is a major constraint agriculture, particularly in arid and semi-arid zones, water scarcity high evaporation rates. Reducing fundamental objective for protecting the soil supporting agricultural production. The present study aimed empirically measure simulate with model, reduction Vertisol by cultivation of Echinochloa stagnina. Laboratory column experiments were...