Salinity and nitrogen nutrition studies on peanut and cotton plants
1992
Leidi, E.O. | Silberbush, M. | Soares, M.I.M. | Lips, S.H.
The effect of the nitrogen form (NH4+ or NO3-) added to the nutrient solution and salinity levels (NaCl) was studied in peanut and cotton plants grown in hydroponics. Salinity levels particularly affected the growth of NH4+ -fed plants. Salinity and nitrogen form had different effects in the levels of K+ and Na+ in the shoots of these two species. Salinity only reduced photosynthesis in severely stressed cotton plants. A high correlation was observed between the level of K+ and stomatal conductance. Ammonium resulted in a less efficient use of nitrogen under saline conditions for both species.
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