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Plant phosphorus and rice yield in an Ultisol of the humid forest zone in West Africa

OAR@ICRISAT

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Relation http://oar.icrisat.org/4582/
http://dx.doi.org/10.1080/00103629809370002
 
Title Plant phosphorus and rice yield in an Ultisol of the humid forest zone in West Africa
 
Creator Sahrawat, K L
Jones, M P
Diatta, S
 
Subject Soil Science
Fertilizer Appications
 
Description Little attention has been devoted to calibrating plant tissue tests for phosphorus (P) in the field for upland rice in West Africa, although information is needed for improving crop production through efficient P nutrition. A field experiment was conducted under rainfed conditions in the 1994 season to establish the relationships between plant P content and grain yield of upland rice grown on an Ultisol, having a range in extractable P, in the humid forest zone of Ivory Coast. The critical limit of P content in the whole rice plant tops at the tillering stage, at 90% relative grain yield, was found to be 2 g kg‐1 P for the four upland rice cultivars tested. Total P uptake in the biomass was significantly correlated with rice grain (r=0.81, n=20) and straw (r=0.79) yields of the cultivars.
 
Publisher Taylor & Francis
 
Date 1998
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/4582/1/CSSPA_29_7-8_997_1005_1998.pdf
Sahrawat, K L and Jones, M P and Diatta, S (1998) Plant phosphorus and rice yield in an Ultisol of the humid forest zone in West Africa. Communications in Soil Science and Plant Analysis, 29 (7-8). pp. 997-1005. ISSN 0010-3624