The effect of nutrients on the salt tolerance of crops

Influence of Nitrogen and Salinity Levels on the Fruit Yield and Chemical Composition of Tomato in a Hydroponic Culture

“…Lower mitigation effect of 3% N application in comparison to 1.5% N application might be due to the amplification of salinity by higher N rate. Ravikovitch and Yoles (1971) showed that salt tolerance increased when N levels supplied under saline conditions exceeded those that were optimum under non saline conditions, and it has been suggested that increased fertilization may overcome some of the inhibitory effects of salinity on plant performance (Ravikovitch and Porath, 1967). Papadopoulos and Rending (1983) showed that at the lowest initial salinity level of 1 dSm −1 , there was a positive response of plants to increasing N levels, but increasing salinity levels to 5 and 9 dS m −1 , N application was ineffective in counteracting adverse effects of salinity on growth and yield.…”

“…This effect depends on plant species, salinity level, or environmental conditions (Grattan and Grieve, 1999). It has been suggested that increasing fertilization may overcome some of the inhibitory effects of salinity (Ravikovitch and Porath, 1967). Hall (1983) reported that vegetation vigor and fruit yield were markedly increased by raising the N concentration of nutrient solution but were not influenced by salinity.…”

Salinity–mineral nutrient relations in horticultural crops

“…Most salinity and N interaction studies in the field were conducted on soils deficient in N. Therefore, additions of N improved growth and/or yield of apple, Malus pumila Mill (El-Siddig and Lu Èdders, 1994), bean, Phaseolus vulgaris L. (Lunin and Gallatin, 1965;Ravikovitch and Porath, 1967;Wagenet et al, 1983), carrot, Daucus carota L. and cowpea, Vigna unguiculata L. Walp. (Ravikovitch and Porath, 1967), corn, Zea mays L. (Khalil et al, 1967;Ravikovitch and Porath, 1967;Ravikovitch, 1973), grape Vitis vinifera L. (Taylor et al, 1987), tomato, Lycopersicon esculentum L. (Ravikovitch and Porath, 1967;Papadopoulos and Rendig, 1983) and spinach, Spinacia oleracea L. (Langdale et al, 1971) when the degree of salinity was not severe.…”

“…(Ravikovitch and Porath, 1967), corn, Zea mays L. (Khalil et al, 1967;Ravikovitch and Porath, 1967;Ravikovitch, 1973), grape Vitis vinifera L. (Taylor et al, 1987), tomato, Lycopersicon esculentum L. (Ravikovitch and Porath, 1967;Papadopoulos and Rendig, 1983) and spinach, Spinacia oleracea L. (Langdale et al, 1971) when the degree of salinity was not severe. We have found no references to field studies on horticultural crops, however, that showed an increase in crop yield under saline soils where N was applied above a level considered optimal under non-saline conditions (i.e.…”

Mineral Nutrient Acquisition and Response by Plants Grown in Saline Environments

“…bean (14-16), carrots, cowpea, tomato, corn, clover, beans, millet, and vetch (17), coastal Bermuda grass (18), corn and cotton (19), corn and millet (20), tomato (21), spinach (22), and wheat and rice (23) when the degree of salinity was not severe. In most of these studies, the fact that applied N did not improve the growth under extreme saline conditions suggests that applied N decreased plant salt tolerance (see response in Figure 2c).…”