تأثیر بیکربنات آب آبیاری بر رشد و غلظت آهن در دو رقم سویا

Abstract: Iron deficiency occurs in calcareous soils throughout the world. To study the effect of bicarbonate
on shoot and root dry weight of soybean experiment based on completely randomized design consisting of
two soybean cultivars, 2 levels Fe (lack of efficacy) and 4 bicarbonate levels (0, 10, 20 and 40 mM ) came
into force. At the end of vegetative growth were harvested and the dry weight of roots, shoots and Fe
concentration were measured. Results showed that an increase in bicarbonate concentration is reduced dry
weight of roots and shoots. Maximum of Fe shoots decrease was in 40 mM bicarbonate. Optimum Plant
nutrition management and improvement of water quality could decreased bicarbonate thus it can decreased
plant chlorosis and increased yield.