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The Initial and Residual Value of Phosphorus from Apatite Rock Phosphates and Superphosphates as Measured by 32p Dilution Technique

A pot trial using maize (Zea mays, L.) grown on an Ultisollabelled with 32p was carried out to evaluate the agronomic value of nine types of apatite rock phosphates and triple superphosphate. Results show that the effectiveness of tested rock phosphates is variable as compared to superphosphate, w...

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Main Authors: Abdul Rahman, Zaharah, Abdul Hamid, Sharifuddin
Format: Article
Language:English
English
Published: 1990
Online Access:http://psasir.upm.edu.my/id/eprint/2918/1/The_Initial_and_Residual_Value_of_Phosphorus_from.pdf
http://psasir.upm.edu.my/id/eprint/2918/
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spelling my.upm.eprints.29182013-05-27T07:04:27Z http://psasir.upm.edu.my/id/eprint/2918/ The Initial and Residual Value of Phosphorus from Apatite Rock Phosphates and Superphosphates as Measured by 32p Dilution Technique Abdul Rahman, Zaharah Abdul Hamid, Sharifuddin A pot trial using maize (Zea mays, L.) grown on an Ultisollabelled with 32p was carried out to evaluate the agronomic value of nine types of apatite rock phosphates and triple superphosphate. Results show that the effectiveness of tested rock phosphates is variable as compared to superphosphate, when measured at 30 days after planting. However, these rock phosphates were three to five times more effective than triple superphosphate in the second cropping. 1990 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/2918/1/The_Initial_and_Residual_Value_of_Phosphorus_from.pdf Abdul Rahman, Zaharah and Abdul Hamid, Sharifuddin (1990) The Initial and Residual Value of Phosphorus from Apatite Rock Phosphates and Superphosphates as Measured by 32p Dilution Technique. Pertanika, 13 (1). pp. 27-31. English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description A pot trial using maize (Zea mays, L.) grown on an Ultisollabelled with 32p was carried out to evaluate the agronomic value of nine types of apatite rock phosphates and triple superphosphate. Results show that the effectiveness of tested rock phosphates is variable as compared to superphosphate, when measured at 30 days after planting. However, these rock phosphates were three to five times more effective than triple superphosphate in the second cropping.
format Article
author Abdul Rahman, Zaharah
Abdul Hamid, Sharifuddin
spellingShingle Abdul Rahman, Zaharah
Abdul Hamid, Sharifuddin
The Initial and Residual Value of Phosphorus from Apatite Rock Phosphates and Superphosphates as Measured by 32p Dilution Technique
author_facet Abdul Rahman, Zaharah
Abdul Hamid, Sharifuddin
author_sort Abdul Rahman, Zaharah
title The Initial and Residual Value of Phosphorus from Apatite Rock Phosphates and Superphosphates as Measured by 32p Dilution Technique
title_short The Initial and Residual Value of Phosphorus from Apatite Rock Phosphates and Superphosphates as Measured by 32p Dilution Technique
title_full The Initial and Residual Value of Phosphorus from Apatite Rock Phosphates and Superphosphates as Measured by 32p Dilution Technique
title_fullStr The Initial and Residual Value of Phosphorus from Apatite Rock Phosphates and Superphosphates as Measured by 32p Dilution Technique
title_full_unstemmed The Initial and Residual Value of Phosphorus from Apatite Rock Phosphates and Superphosphates as Measured by 32p Dilution Technique
title_sort initial and residual value of phosphorus from apatite rock phosphates and superphosphates as measured by 32p dilution technique
publishDate 1990
url http://psasir.upm.edu.my/id/eprint/2918/1/The_Initial_and_Residual_Value_of_Phosphorus_from.pdf
http://psasir.upm.edu.my/id/eprint/2918/
_version_ 1643822460083109888
score 13.160551

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