Can foliar iron-containing solutions be a potential strategy to enrich iron concentration of rice grains (Oryza sativa L.)?

Abstract

The available literature on whether or not foliar iron (Fe)-containing solutions can be one of the sustainable and low-cost strategies to increase Fe concentration in edible portions of staple food crops consisted of a few previous studies of Fe in plants, and mainly focused on Fe-deficiency remedies. Our experiment was carried out to examine the effects of foliar Fe-containing solutions on Fe enrichment and on the nutritional, cooking, and eating qualities of polished rice of the japonica 'Bing 98110' planted on a powdery loam soil under pot conditions. The results showed that Fe concentration in polished rice could be enriched with foliar Fe(II)-amino acids [the main formulation was the complex of 0.1% (w/v) FeSO4•7H2O and 0.4% (w/v) compound amino acids, 18.6% N] application. Compared with the control, Fe concentration increased significantly, by 88.0%. Meanwhile, the positive effects on Zn concentration and protein and amino acid content improvement were found with boric acid (H3BO3, B) added to Fe(II)-amino acids foliar application. In detail, Zn concentration significantly increased (19.6%), and protein and lysine were increased significantly by 30.1 and 35.1%, respectively. Also the cooking and eating qualities were improved with foliar Fe(II)-amino acids and B compound spray.

Citation

Acta Agriculturae Scandinavica, Section B - Plant Soil Science (2009) 59 (5) 389-394 [doi: 10.1080/09064710802203545]

Can foliar iron-containing solutions be a potential strategy to enrich iron concentration of rice grains (Oryza sativa L.)?

Help us improve GOV.UK

Don’t include personal or financial information like your National Insurance number or credit card details.