Water-Saving Irrigation in Sustainable Agriculture

摘要

Salinity is a first-rate risk for the sustainability of irrigated agriculture in dry lands. To manage salinity with inside the root area for higher crop growth, extra water than required to satisfy crop evapotranspiration should be carried out to leach immoderate soluble salts out. Such an intentional “over-irrigation” is referred to as leaching, that is the number one degree and is broadly practiced because the simplest method. By wearing out leaching, salinity with inside the root area may be managed at the least tentatively, however drainage beneath Neath the basis area is inevitable and if subsurface drainage or groundwater discharge of the land is poor, the floor water desk will upward push and salts might also additionally go back to the soil floor through speedy and non-stop evaporation from the moist soil floor. In addition, flowers will be afflicted by a loss of oxygen in soil pores. Therefore, securing subsurface drainage should be observed with irrigation in dry lands.