BORON UPTAKE AND CONCENTRATION IN COTTON AND SOYBEAN AS AFFECTED BY BORON SOURCE

Citation
Ea. Guertal et al., BORON UPTAKE AND CONCENTRATION IN COTTON AND SOYBEAN AS AFFECTED BY BORON SOURCE, Communications in soil science and plant analysis, 29(19-20), 1998, pp. 3007-3014
Citations number
14
Categorie Soggetti
Agriculture Soil Science","Plant Sciences",Agriculture,"Chemistry Analytical
ISSN journal
00103624
Volume
29
Issue
19-20
Year of publication
1998
Pages
3007 - 3014
Database
ISI
SICI code
0010-3624(1998)29:19-20<3007:BUACIC>2.0.ZU;2-H
Abstract
Continued introduction of new boron (B) fertilizer materials prompted a second examination of the efficacy of foliar-applied B materials on B content, B uptake, and dry matter yield of cotton (Gossypium hirsutu m L.) and soybean (Glycine max: L.). Similar to a previous study, this greenhouse study was conducted at four participating universities usi ng 6-week-old cotton (Deltapineland 90) and soybean (Pioneer 9761) pla nts. Sources and rates of B were 1) boric acid (17.5% B) at 0.22 kg ha (-1), 2) sodium berate (Solubor(R) 20.5% B) at 0.22 kg ha(-1), 3) Smit h & Ardussi Liquid B (10% B) at 0.22 kg ha(-1), 4) Smith & Ardussi Liq uid B at 0.11 kg ha(-1), 5) Borosol 10 (10% B) at 0.22 kg ha(-1), 6) B orosol 10 at 0.11 kg ha(-1), and 7) an untreated control. Control plan ts that did not receive B were sprayed with water. Four giants were gr own in each 15-cm diam. pot in sandy loam soil. Plants were sprayed at 6 weeks of growth and top growth was harvested at eight weeks. Whole- plant samples were dried (70 degrees C), ground, and analyzed for B co ntent. Uptake of B, plant B concentration, and plant dry weight varied by state, so results were not combined over all states. In every stat e there were significant differences in B concentration and B uptake b y cotton and soybean as affected by B treatment, but effects were not consistent with any one B source. In two of four cases (Alabama and Ge orgia) cotton plants receiving any B treatment had greater B concentra tion and B uptake than the water-sprayed control. In Virginia and Nort h Carolina, application of B treatments rarely affected B uptake by co tton or soybean. No one B source produced consistently greater B uptak e than any other B source.