Effects of acid soil infertility factors on mineral composition of soybean and cowpea tops

Alva A.K., Edwards D.G. and Asher C.J. (1991) Effects of acid soil infertility factors on mineral composition of soybean and cowpea tops. Journal of Plant Nutrition, 14 2: 187-203. doi:10.1080/01904169109364194


Author Alva A.K.
Edwards D.G.
Asher C.J.
Title Effects of acid soil infertility factors on mineral composition of soybean and cowpea tops
Journal name Journal of Plant Nutrition   Check publisher's open access policy
ISSN 1532-4087
Publication date 1991-02-01
Sub-type Article (original research)
DOI 10.1080/01904169109364194
Volume 14
Issue 2
Start page 187
End page 203
Total pages 17
Subject 1102 Cardiovascular Medicine and Haematology
1314 Physiology
Abstract Investigations on the effects of acid soil infertility factors on legumes are often focussed on growth, nodulation, and N2-fixation, while very little emphasis has been given to the mineral composition of plants. In the present investigation, effects of varying solution pH [4.5, 5.0 and 5.5], concentrations of Ca [0.05, 0.5 and 2.5 mM] and activities of Al [0-33μM] on chemical composition of the tops of soybean [Glycine max (L.) Merr. cv. Fitzroy] and cowpea [Vigna unguiculata (L.) Walp. cv. Vita 4] plants grown in dilute nutrient solutions were examined. An increase in solution pH significantly increased concentrations of N, K, Ca, Mn, and Zn in soybean tops and concentrations of only K and Mn in cowpea tops. An increase in solution Ca concentration increased concentrations of Ca and Cu, and decreased concentrations of Mg, Mn, and Zn in both soybean and cowpea tops. The concentration of Al in soybean and cowpea tops was greater in plants grown in solutions containing a sum of activities of monomeric Al species [ΣaAl mono] of 6.5 μM than that in plants grown in solutions containing no Al. Further increase in ΣaAl mono in solutions decreased Al concentration in soybean tops, but not in cowpea tops. An increase in ΣaA1 mono in solutions decreased the concentrations of N, P, K, Ca, Mg, Mn, Zn and Cu in soybean and cowpea tops. However, the ΣaAl mono at which concentrations of each of the essential elements in plant tops decreased significantly were different for soybean and cowpea. Copyright
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import
 
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