Nitrogen and Potassium Exchange in an Acid Tropical Soil Incorporated with Synthetic and Natural Zeolites

Generally, soils in the tropics are highly weathered, acidic and low in fertility status. High precipitation and low soil cation exchange capacity (CEC) require large amounts of fertilization and liming to ameliorate and increase the potential of these soils. Leaching losses of NH4 + and K+ are e...

Full description

Saved in:

Bibliographic Details
Main Author:	Ilias, Zubaidah
Format:	Thesis
Language:	English English
Published:	2002
Subjects:	Nitrogen - Zeolites - Case studies Potassium - Zeolites - Case studies
Online Access:	http://psasir.upm.edu.my/id/eprint/10588/1/FP_2002_12.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-upm-ir.10588
record_format	uketd_dc
spelling	my-upm-ir.105882024-04-23T01:18:44Z Nitrogen and Potassium Exchange in an Acid Tropical Soil Incorporated with Synthetic and Natural Zeolites 2002-02 Ilias, Zubaidah Generally, soils in the tropics are highly weathered, acidic and low in fertility status. High precipitation and low soil cation exchange capacity (CEC) require large amounts of fertilization and liming to ameliorate and increase the potential of these soils. Leaching losses of NH4 + and K+ are extremely large in tropical soils. Zeolites are natural clay silicates that have high affinity and ability to adsorp NH4 + and K+. They are able to release these ions gradually. A study was carried out in three parts. Experiment I was conducted to determine the chemical characteristics of natural and synthetic zeolites. The result of this study suggested that the materials used were zeolites and therefore can be used for further experiment. Experiment II was conducted to determine the adsorption characteristics of NH4 + and K+ by the natural and synthetic zeolites. The result showed that treatment with synthetic Zeolite A (ZA), and natural zeolite (namely Clinop I, from Malang, Indonesia and Clinop II from Sweetwater County, Wyoming, USA) reduced leaching of K+ and NH4 +. The zeolites treatm'ents'increased 2-3 times higher the CEC of the soils after 20 days of incubation. Natural zeolites treatments were better than the synthetic zeolite in retaining exchangeable cation. Experiment III was conducted to evaluate the efficacy of NH/ and K+ retained in the soil using corn (var. Putra 1-58) as a test crop planted for 56 days. The results showed there were significant differences between the zeolites treatment and the control for K and N concentration in the plant tissue. The application of K+ and NH4 + saturated zeolites increased the soil CEC about 2-3 times higher. However, there was no significant difference in dry matter yield and root weight. This study showed that zeolite can be used as a soil amendment to overcome low CEC soils and leaching losses of NH4 + and K+ on highly weathered soils. Nitrogen - Zeolites - Case studies Potassium - Zeolites - Case studies 2002-02 Thesis http://psasir.upm.edu.my/id/eprint/10588/ http://psasir.upm.edu.my/id/eprint/10588/1/FP_2002_12.pdf text en public masters Universiti Putra Malaysia Nitrogen - Zeolites - Case studies Potassium - Zeolites - Case studies Faculty of Agriculture Syed Rastan, Syed Omar English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Syed Rastan, Syed Omar
topic	Nitrogen - Zeolites - Case studies Potassium - Zeolites - Case studies
spellingShingle	Nitrogen - Zeolites - Case studies Potassium - Zeolites - Case studies Ilias, Zubaidah Nitrogen and Potassium Exchange in an Acid Tropical Soil Incorporated with Synthetic and Natural Zeolites
description	Generally, soils in the tropics are highly weathered, acidic and low in fertility status. High precipitation and low soil cation exchange capacity (CEC) require large amounts of fertilization and liming to ameliorate and increase the potential of these soils. Leaching losses of NH4 + and K+ are extremely large in tropical soils. Zeolites are natural clay silicates that have high affinity and ability to adsorp NH4 + and K+. They are able to release these ions gradually. A study was carried out in three parts. Experiment I was conducted to determine the chemical characteristics of natural and synthetic zeolites. The result of this study suggested that the materials used were zeolites and therefore can be used for further experiment. Experiment II was conducted to determine the adsorption characteristics of NH4 + and K+ by the natural and synthetic zeolites. The result showed that treatment with synthetic Zeolite A (ZA), and natural zeolite (namely Clinop I, from Malang, Indonesia and Clinop II from Sweetwater County, Wyoming, USA) reduced leaching of K+ and NH4 +. The zeolites treatm'ents'increased 2-3 times higher the CEC of the soils after 20 days of incubation. Natural zeolites treatments were better than the synthetic zeolite in retaining exchangeable cation. Experiment III was conducted to evaluate the efficacy of NH/ and K+ retained in the soil using corn (var. Putra 1-58) as a test crop planted for 56 days. The results showed there were significant differences between the zeolites treatment and the control for K and N concentration in the plant tissue. The application of K+ and NH4 + saturated zeolites increased the soil CEC about 2-3 times higher. However, there was no significant difference in dry matter yield and root weight. This study showed that zeolite can be used as a soil amendment to overcome low CEC soils and leaching losses of NH4 + and K+ on highly weathered soils.
format	Thesis
qualification_level	Master's degree
author	Ilias, Zubaidah
author_facet	Ilias, Zubaidah
author_sort	Ilias, Zubaidah
title	Nitrogen and Potassium Exchange in an Acid Tropical Soil Incorporated with Synthetic and Natural Zeolites
title_short	Nitrogen and Potassium Exchange in an Acid Tropical Soil Incorporated with Synthetic and Natural Zeolites
title_full	Nitrogen and Potassium Exchange in an Acid Tropical Soil Incorporated with Synthetic and Natural Zeolites
title_fullStr	Nitrogen and Potassium Exchange in an Acid Tropical Soil Incorporated with Synthetic and Natural Zeolites
title_full_unstemmed	Nitrogen and Potassium Exchange in an Acid Tropical Soil Incorporated with Synthetic and Natural Zeolites
title_sort	nitrogen and potassium exchange in an acid tropical soil incorporated with synthetic and natural zeolites
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Agriculture
publishDate	2002
url	http://psasir.upm.edu.my/id/eprint/10588/1/FP_2002_12.pdf
_version_	1804888573619470336

Nitrogen and Potassium Exchange in an Acid Tropical Soil Incorporated with Synthetic and Natural Zeolites

Similar Items