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Differential Ability of Maize and Soybean to Acquire and Utilize Phosphorus from Sparingly Soluble Forms in Low- and Medium-P Soils Using {sup 32}P

Abstract

A glasshouse pot experiment was conducted to evaluate the differential ability of maize (Zea mays) and soybean (Glycine max) to utilize soil phosphorus (P) for plant growth from total-P, available-P and inorganic (Ca-P, Al-P and Fe-P) soil P pools using a carrier-free {sup 32}P solution. A maize variety (DK 315) and a soybean variety (TGX 1910-4F) were grown in pots containing 1 kg of a low available P soil (Hungarian) or a medium available P (Waldviertel) soil labelled with {sup 32}P for 42 days or without {sup 32}P (unlabelled) for 42 and 60 days. The shoot and root biomass of maize and soybean were significantly greater when grown on the Waldviertel than on the Hungarian soils. The shoot P concentrations were higher for soybean (1.7-2.2 g kg{sup -1}) than for maize (1.1-1.4 g kg{sup -1}). The total radioactivity (dpm x 10{sup 6}) was higher in plants grown in Waldviertel than in Hungarian soil and the values reflected plant P uptake and shoot biomass of soybean and maize. The L-values ({mu}g P g soil{sup -1}) of maize and soybean were higher in Waldviertel (72-78) than in Hungarian (9.6-20) soil. No significant differences in L-values were observed for maize and soybean grown  More>>
Authors:
Adu-Gyamfi, J. J.; Aigner, M.; Linic, S.; [1]  Gludovacz, D. [2] 
  1. Soil and Water Management and Crop Nutrition Laboratory, Seibersdorf (Austria)
  2. Nuclear Material Laboratory, Safeguard Analytical Services, International Atomic Energy Agency, Seibersdorf (Austria)
Publication Date:
Nov 15, 2013
Product Type:
Technical Report
Report Number:
IAEA-TECDOC-1721
Resource Relation:
Other Information: 7 figs., 1 tab., 26 refs.; Related Information: In: Optimizing Productivity of Food Crop Genotypes in Low Nutrient Soils| 342 p.
Subject:
60 APPLIED LIFE SCIENCES; BIOMASS; CROPS; ECOLOGICAL CONCENTRATION; GLYCINE; MAIZE; PHOSPHORUS; PHOSPHORUS 32; PLANT GROWTH; RADIOACTIVITY; ROOTS; SOILS; SOYBEANS; TRACER TECHNIQUES; UPTAKE
OSTI ID:
22192675
Research Organizations:
International Atomic Energy Agency, Joint FAO/IAEA Division of Nuclear Techniques in Food and Agriculture, Soil and Water Management and Crop Nutrition Section, Vienna (Austria)
Country of Origin:
IAEA
Language:
English
Other Identifying Numbers:
Other: ISBN 978-92-0-113113-3; ISSN 1011-4289; TRN: XA14R0158017164
Availability:
Available from INIS in electronic form. Also available on-line: http://www-pub.iaea.org/MTCD/publications/PDF/TE-1721_web.pdf; Enquiries should be addressed to IAEA, Marketing and Sales Unit, Publishing Section, E-mail: sales.publications@iaea.org; Web site: http://www.iaea.org/books
Submitting Site:
INIS
Size:
page(s) 11-23
Announcement Date:
Feb 20, 2014

Citation Formats

Adu-Gyamfi, J. J., Aigner, M., Linic, S., and Gludovacz, D. Differential Ability of Maize and Soybean to Acquire and Utilize Phosphorus from Sparingly Soluble Forms in Low- and Medium-P Soils Using {sup 32}P. IAEA: N. p., 2013. Web.
Adu-Gyamfi, J. J., Aigner, M., Linic, S., & Gludovacz, D. Differential Ability of Maize and Soybean to Acquire and Utilize Phosphorus from Sparingly Soluble Forms in Low- and Medium-P Soils Using {sup 32}P. IAEA.
Adu-Gyamfi, J. J., Aigner, M., Linic, S., and Gludovacz, D. 2013. "Differential Ability of Maize and Soybean to Acquire and Utilize Phosphorus from Sparingly Soluble Forms in Low- and Medium-P Soils Using {sup 32}P." IAEA.
@misc{etde_22192675,
title = {Differential Ability of Maize and Soybean to Acquire and Utilize Phosphorus from Sparingly Soluble Forms in Low- and Medium-P Soils Using {sup 32}P}
author = {Adu-Gyamfi, J. J., Aigner, M., Linic, S., and Gludovacz, D.}
abstractNote = {A glasshouse pot experiment was conducted to evaluate the differential ability of maize (Zea mays) and soybean (Glycine max) to utilize soil phosphorus (P) for plant growth from total-P, available-P and inorganic (Ca-P, Al-P and Fe-P) soil P pools using a carrier-free {sup 32}P solution. A maize variety (DK 315) and a soybean variety (TGX 1910-4F) were grown in pots containing 1 kg of a low available P soil (Hungarian) or a medium available P (Waldviertel) soil labelled with {sup 32}P for 42 days or without {sup 32}P (unlabelled) for 42 and 60 days. The shoot and root biomass of maize and soybean were significantly greater when grown on the Waldviertel than on the Hungarian soils. The shoot P concentrations were higher for soybean (1.7-2.2 g kg{sup -1}) than for maize (1.1-1.4 g kg{sup -1}). The total radioactivity (dpm x 10{sup 6}) was higher in plants grown in Waldviertel than in Hungarian soil and the values reflected plant P uptake and shoot biomass of soybean and maize. The L-values ({mu}g P g soil{sup -1}) of maize and soybean were higher in Waldviertel (72-78) than in Hungarian (9.6-20) soil. No significant differences in L-values were observed for maize and soybean grown on the Waldviertel soil, but for the Hungarian soil, the L-values were higher for maize (20.0) than for soybean (9.6) suggesting that in this low-P soil, maize was more efficient than soybean in taking up soil P. The available P (Bray II) and the Ca-P were the fractions most depleted by plants followed by the Fe-P fractions in the two soils, but differences between the crops were not significant. When soil P is limited, maize and soybean are able to access P mainly from the available P (Bray II), Fe- and Ca-P sparingly soluble fractions and not Al-P from the soil. (author)}
place = {IAEA}
year = {2013}
month = {Nov}
}