Water Requirements, Water Distribution Pattern and Potassium Substitution with Sodium from Seawater for Pineapple Cultivation on Bris Soil

Pineapple is one of the most traded tropical fruit in Malaysia; mostly planted on peat soil. However, Malaysia has a vast area of sandy fallow beach ridges interspersed swales (BRIS) soil. Due to lack of cultivable land, increasing populations, and urge to improve the standard of living of inhabitan...

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Main Author:	Md. Niazuddin
Format:	Thesis
Language:	English English
Published:	2007
Subjects:	Tillage. Soil management.
Online Access:	http://psasir.upm.edu.my/id/eprint/7176/1/FP_2007_8a.pdf
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spelling	my-upm-ir.71762013-05-27T07:33:52Z Water Requirements, Water Distribution Pattern and Potassium Substitution with Sodium from Seawater for Pineapple Cultivation on Bris Soil 2007-05 Md. Niazuddin, Pineapple is one of the most traded tropical fruit in Malaysia; mostly planted on peat soil. However, Malaysia has a vast area of sandy fallow beach ridges interspersed swales (BRIS) soil. Due to lack of cultivable land, increasing populations, and urge to improve the standard of living of inhabitants of in this area, there is a need to develop a viable commercial-oriented agriculture. Therefore, the objectives of the study were to estimate the crop water requirements, water distribution patterns, and K substitution with Na from seawater for cultivation of pineapple on BRIS soil. A series of experiments including soil temperature, water distribution, and crop water requirements of the BRIS soil were determined in the glasshouse and field. Water distribution patterns were determined using water application rates of 2, 4, and 8 l/h emitters at different times of duration using a specially designed apparatus. Crop water requirements of „N-36‟ of pineapple were estimated by planting of different stages of plants on the lysimeters and using the CROPWAT model. Pineapple stages were adjusted according to their length of growth on the lysimeters and in the model. The estimated crop water requirements was applied in the field at BRIS soil area,Terengganu using Na from seawater for substitution of K requirements of pineapple (based on 300 kg K ha-1) at 15, 30, and 60% in comparison to the control (100% K) using fertigation techniques for 4 months with irrigation water. Pineapple growth, development, and yield were measured. With the exception in the morning, the topsoil temperature of BRIS soil was higher than the subsoil. The temperature gradually increased from 08:00 up to 14:00 hr of a day then decreased. On normal soil temperature and heated soil, the shape of water distribution of the wetted fronts was spherical or ellipsoidal. The higher discharge rate in short duration, the lateral movement was more as compared with the vertical movement. But the opposite was observed when lower discharge rate was applied in long time of duration. Wetted waterfronts were increased with increasing soil temperature in both horizontal and vertical directions. The average calculated crops reference evaporation (ETc) at the respective stages was 0.83, 0.73, 0.68 and 0.61 mm/day. The calculated average ETo was 1.99 mm/day. The estimated pineapple crop coefficient (Kc) value (0.50) was the highest at the early growing stage 1 because of the maximum ETc occurred from the bare soil and young pineapple with limited transpiration rate. The Kc value for pineapple was 0.30 at stage 2 to 4. The average depth of fertigation in the field using CROPWAT model was 1.67 mm/day. Application of 0, 15 and 30% Na from seawater substitution for K on plant height, number of leaf per plant, D-leaf length, and area, fresh and dry weight was not significantly different. Fruit length, diameter, and weight obtained from Na application at 15, and 30% Na for K substitution were not significantly different from 0% Na (100% K) treatment. The results indicate that up to 30% of pineapple K requirement can be substituted by Na obtained from seawater. Knowing the emitter size and soil water movement could ensure precise placement of water and nutrients in the active roots zone. Tillage. Soil management. 2007-05 Thesis http://psasir.upm.edu.my/id/eprint/7176/ http://psasir.upm.edu.my/id/eprint/7176/1/FP_2007_8a.pdf application/pdf en public phd doctoral Universiti Putra Malaysia Tillage. Soil management. Faculty Agriculture English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Tillage. Soil management.
spellingShingle	Tillage. Soil management. Md. Niazuddin, Water Requirements, Water Distribution Pattern and Potassium Substitution with Sodium from Seawater for Pineapple Cultivation on Bris Soil
description	Pineapple is one of the most traded tropical fruit in Malaysia; mostly planted on peat soil. However, Malaysia has a vast area of sandy fallow beach ridges interspersed swales (BRIS) soil. Due to lack of cultivable land, increasing populations, and urge to improve the standard of living of inhabitants of in this area, there is a need to develop a viable commercial-oriented agriculture. Therefore, the objectives of the study were to estimate the crop water requirements, water distribution patterns, and K substitution with Na from seawater for cultivation of pineapple on BRIS soil. A series of experiments including soil temperature, water distribution, and crop water requirements of the BRIS soil were determined in the glasshouse and field. Water distribution patterns were determined using water application rates of 2, 4, and 8 l/h emitters at different times of duration using a specially designed apparatus. Crop water requirements of „N-36‟ of pineapple were estimated by planting of different stages of plants on the lysimeters and using the CROPWAT model. Pineapple stages were adjusted according to their length of growth on the lysimeters and in the model. The estimated crop water requirements was applied in the field at BRIS soil area,Terengganu using Na from seawater for substitution of K requirements of pineapple (based on 300 kg K ha-1) at 15, 30, and 60% in comparison to the control (100% K) using fertigation techniques for 4 months with irrigation water. Pineapple growth, development, and yield were measured. With the exception in the morning, the topsoil temperature of BRIS soil was higher than the subsoil. The temperature gradually increased from 08:00 up to 14:00 hr of a day then decreased. On normal soil temperature and heated soil, the shape of water distribution of the wetted fronts was spherical or ellipsoidal. The higher discharge rate in short duration, the lateral movement was more as compared with the vertical movement. But the opposite was observed when lower discharge rate was applied in long time of duration. Wetted waterfronts were increased with increasing soil temperature in both horizontal and vertical directions. The average calculated crops reference evaporation (ETc) at the respective stages was 0.83, 0.73, 0.68 and 0.61 mm/day. The calculated average ETo was 1.99 mm/day. The estimated pineapple crop coefficient (Kc) value (0.50) was the highest at the early growing stage 1 because of the maximum ETc occurred from the bare soil and young pineapple with limited transpiration rate. The Kc value for pineapple was 0.30 at stage 2 to 4. The average depth of fertigation in the field using CROPWAT model was 1.67 mm/day. Application of 0, 15 and 30% Na from seawater substitution for K on plant height, number of leaf per plant, D-leaf length, and area, fresh and dry weight was not significantly different. Fruit length, diameter, and weight obtained from Na application at 15, and 30% Na for K substitution were not significantly different from 0% Na (100% K) treatment. The results indicate that up to 30% of pineapple K requirement can be substituted by Na obtained from seawater. Knowing the emitter size and soil water movement could ensure precise placement of water and nutrients in the active roots zone.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Md. Niazuddin,
author_facet	Md. Niazuddin,
author_sort	Md. Niazuddin,
title	Water Requirements, Water Distribution Pattern and Potassium Substitution with Sodium from Seawater for Pineapple Cultivation on Bris Soil
title_short	Water Requirements, Water Distribution Pattern and Potassium Substitution with Sodium from Seawater for Pineapple Cultivation on Bris Soil
title_full	Water Requirements, Water Distribution Pattern and Potassium Substitution with Sodium from Seawater for Pineapple Cultivation on Bris Soil
title_fullStr	Water Requirements, Water Distribution Pattern and Potassium Substitution with Sodium from Seawater for Pineapple Cultivation on Bris Soil
title_full_unstemmed	Water Requirements, Water Distribution Pattern and Potassium Substitution with Sodium from Seawater for Pineapple Cultivation on Bris Soil
title_sort	water requirements, water distribution pattern and potassium substitution with sodium from seawater for pineapple cultivation on bris soil
granting_institution	Universiti Putra Malaysia
granting_department	Faculty Agriculture
publishDate	2007
url	http://psasir.upm.edu.my/id/eprint/7176/1/FP_2007_8a.pdf
_version_	1747810668296273920

Water Requirements, Water Distribution Pattern and Potassium Substitution with Sodium from Seawater for Pineapple Cultivation on Bris Soil

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