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Effect of fresh azolla (azolla pinnata) on growth and yield of tr8 rice variety under reduced nitrogen rates

Nitrogen is required practically throughout the vegetative phase of rice especially during tillering and panicle initiation stage. Therefore, many synthetic fertilizers are required in rice cultivation. However, synthetic chemical fertilizers are extremely expensive. In addition, the use of chemical...

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Main Authors: Narisa Ahmad, Chin, Clament Fui Seung, Lum, Mok Sam
Format: Article
Language:English
English
Published: Penerbit Universiti Sultan Zainal Abidin 2024
Subjects:
S631-667 Fertilizers and improvement of the soil
SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants
Online Access:https://eprints.ums.edu.my/id/eprint/42017/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/42017/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/42017/
http://dx.doi.org/10.37231/jab.2024.15.S1.375
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spelling my.ums.eprints.420172024-11-26T05:37:15Z https://eprints.ums.edu.my/id/eprint/42017/ Effect of fresh azolla (azolla pinnata) on growth and yield of tr8 rice variety under reduced nitrogen rates Narisa Ahmad Chin, Clament Fui Seung Lum, Mok Sam S631-667 Fertilizers and improvement of the soil SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants Nitrogen is required practically throughout the vegetative phase of rice especially during tillering and panicle initiation stage. Therefore, many synthetic fertilizers are required in rice cultivation. However, synthetic chemical fertilizers are extremely expensive. In addition, the use of chemical fertilizers has detrimental effects on the environment and human health over time. Thus, the use of Azolla as a biofertilizer can replenish nitrogen in the rice field. However, the effect of fresh Azolla in promoting TR8 rice variety growth and yield has not been reported. This experiment was conducted in the insect-proof rain shelter at the Faculty of Sustainable Agriculture, Universiti Malaysia Sabah, Sandakan Campus, Sabah, from August until December 2022. The experiment was laid in a completely randomized design (CRD) for six treatments with five replications. The treatments used in this study were: T1: 60 kg ha⁻¹ N, 30 kg ha⁻¹ P₂O₅, 30 kg ha⁻¹ K₂O + 0% Azolla, T2: 50 kg ha-1 N, 30 kg ha⁻¹ P₂O₅, 30 kg ha⁻¹ K₂O + 10% Azolla, T3: 40 kg ha-1 N, 30 kg ha⁻¹ P₂O₅, 30 kg ha⁻¹ K2O + 20% Azolla, T4: 30 kg ha⁻¹ N, 30 kg ha⁻¹ P₂O₅, 30 kg ha⁻¹ K2O + 30% Azolla, T5: 20 kg ha⁻¹ N, 30 kg ha⁻¹ P₂O₅, 30 kg ha⁻¹ K2O + 40% Azolla, T6: 100% Azolla (50 g). The rice plants were cultivated on the same planting medium of topsoil and goat dung with a ratio of 3:1. The plant height, number of tillers, panicle number per plant, spikelet number per panicle, grain weight per panicle and 1000 grain weight showed significant differences (p<0.05) among the treatments. Results revealed T4 recorded the highest number of tillers (41) compared to T6 (27, negative control) and T1 (32, positive control). There were 51% and 28% differences between T4 and T6 and T1, respectively. In addition, the T3 and T4 produced higher panicle number per plant (47%), spikelet number per panicle (9.4%), grain weight per panicle (27.1%) and 1000 grain weight (9%) compared to T6 (negative control), but showed a similar performance as T1 (positive control). Therefore, T4 is recommended for TR8 rice production with lower chemical fertilizer application with the addition of Azolla. Penerbit Universiti Sultan Zainal Abidin 2024 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/42017/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/42017/2/FULL%20TEXT.pdf Narisa Ahmad and Chin, Clament Fui Seung and Lum, Mok Sam (2024) Effect of fresh azolla (azolla pinnata) on growth and yield of tr8 rice variety under reduced nitrogen rates. Journal of Agrobiotechnology, 15. pp. 69-78. http://dx.doi.org/10.37231/jab.2024.15.S1.375
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic S631-667 Fertilizers and improvement of the soil
SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants
spellingShingle S631-667 Fertilizers and improvement of the soil
SB183-317 Field crops Including cereals, forage crops, grasses, legumes, root crops, sugar plants, textile plants, alkaloidal plants, medicinal plants
Narisa Ahmad
Chin, Clament Fui Seung
Lum, Mok Sam
Effect of fresh azolla (azolla pinnata) on growth and yield of tr8 rice variety under reduced nitrogen rates
description Nitrogen is required practically throughout the vegetative phase of rice especially during tillering and panicle initiation stage. Therefore, many synthetic fertilizers are required in rice cultivation. However, synthetic chemical fertilizers are extremely expensive. In addition, the use of chemical fertilizers has detrimental effects on the environment and human health over time. Thus, the use of Azolla as a biofertilizer can replenish nitrogen in the rice field. However, the effect of fresh Azolla in promoting TR8 rice variety growth and yield has not been reported. This experiment was conducted in the insect-proof rain shelter at the Faculty of Sustainable Agriculture, Universiti Malaysia Sabah, Sandakan Campus, Sabah, from August until December 2022. The experiment was laid in a completely randomized design (CRD) for six treatments with five replications. The treatments used in this study were: T1: 60 kg ha⁻¹ N, 30 kg ha⁻¹ P₂O₅, 30 kg ha⁻¹ K₂O + 0% Azolla, T2: 50 kg ha-1 N, 30 kg ha⁻¹ P₂O₅, 30 kg ha⁻¹ K₂O + 10% Azolla, T3: 40 kg ha-1 N, 30 kg ha⁻¹ P₂O₅, 30 kg ha⁻¹ K2O + 20% Azolla, T4: 30 kg ha⁻¹ N, 30 kg ha⁻¹ P₂O₅, 30 kg ha⁻¹ K2O + 30% Azolla, T5: 20 kg ha⁻¹ N, 30 kg ha⁻¹ P₂O₅, 30 kg ha⁻¹ K2O + 40% Azolla, T6: 100% Azolla (50 g). The rice plants were cultivated on the same planting medium of topsoil and goat dung with a ratio of 3:1. The plant height, number of tillers, panicle number per plant, spikelet number per panicle, grain weight per panicle and 1000 grain weight showed significant differences (p<0.05) among the treatments. Results revealed T4 recorded the highest number of tillers (41) compared to T6 (27, negative control) and T1 (32, positive control). There were 51% and 28% differences between T4 and T6 and T1, respectively. In addition, the T3 and T4 produced higher panicle number per plant (47%), spikelet number per panicle (9.4%), grain weight per panicle (27.1%) and 1000 grain weight (9%) compared to T6 (negative control), but showed a similar performance as T1 (positive control). Therefore, T4 is recommended for TR8 rice production with lower chemical fertilizer application with the addition of Azolla.
format Article
author Narisa Ahmad
Chin, Clament Fui Seung
Lum, Mok Sam
author_facet Narisa Ahmad
Chin, Clament Fui Seung
Lum, Mok Sam
author_sort Narisa Ahmad
title Effect of fresh azolla (azolla pinnata) on growth and yield of tr8 rice variety under reduced nitrogen rates
title_short Effect of fresh azolla (azolla pinnata) on growth and yield of tr8 rice variety under reduced nitrogen rates
title_full Effect of fresh azolla (azolla pinnata) on growth and yield of tr8 rice variety under reduced nitrogen rates
title_fullStr Effect of fresh azolla (azolla pinnata) on growth and yield of tr8 rice variety under reduced nitrogen rates
title_full_unstemmed Effect of fresh azolla (azolla pinnata) on growth and yield of tr8 rice variety under reduced nitrogen rates
title_sort effect of fresh azolla (azolla pinnata) on growth and yield of tr8 rice variety under reduced nitrogen rates
publisher Penerbit Universiti Sultan Zainal Abidin
publishDate 2024
url https://eprints.ums.edu.my/id/eprint/42017/1/ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/42017/2/FULL%20TEXT.pdf
https://eprints.ums.edu.my/id/eprint/42017/
http://dx.doi.org/10.37231/jab.2024.15.S1.375
_version_ 1817843839282446336
score 13.222552

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