Effect of altering N application timing on critical paddy development and rice production / Rabiahtul Adawiah Rosli

Nitrogen is the most limiting nutrient in rice production. Nitrogen fertilizer is susceptible to losses through volatilization, denitrification and leaching. The time of application often does not match with period of crop demand. Adjusting the timing of nutrient application especially nitrogen coul...

Full description

Bibliographic Details
Main Author:	Rosli, Rabiahtul Adawiah
Format:	Student Project
Published:	Faculty of Plantation and Agrotechnology 2019
Subjects:	Fertilizers and improvement of the soil
Online Access:	http://ir.uitm.edu.my/id/eprint/24455/

id	uitm-24455
recordtype	eprints
spelling	uitm-244552019-06-18T04:37:47Z http://ir.uitm.edu.my/id/eprint/24455/ Effect of altering N application timing on critical paddy development and rice production / Rabiahtul Adawiah Rosli Rosli, Rabiahtul Adawiah Fertilizers and improvement of the soil Nitrogen is the most limiting nutrient in rice production. Nitrogen fertilizer is susceptible to losses through volatilization, denitrification and leaching. The time of application often does not match with period of crop demand. Adjusting the timing of nutrient application especially nitrogen could potentially improve the nutrient uptake and reduce nutrient losses to allow better nutrient efficiency. A greenhouse experiment was conducted to determine the best of nitrogen fertilizer application timing to improve development and rice production of two Malaysian rice cultivars (MR219 and MR269). The experiment consisted of four treatments applied each at 120 kg ha-1 of N in the form of urea. For T1, N was applied on 15, 35 and 55, T2 was applied on 12, 32, and 52, T3 was applied on 18,38 and 58, and T4 was applied on 21, 41 and 61 days after seeding (DAS) with three replications. Plant physiological parameters such as plant height, tiller, panicle, straw, SPAD and 100-grain weight did not show significant differences. Only total grain weight showed significant differences among the treatments. The application of N also resulted in an increase by 12.13% in plant biomass. The results demonstrate that the split application of fertilizer N at PI stage (58 DAS) significantly increased percentage of 100-grain weight and total grain yield compared to the control treatment, which is applied on 15, 35, and 55 DAS. Farmers should be advised to apply N between 52 DAS and 58 DAS, even though application of N at 58 DAS was significantly better than 55 DAS in terms of yield production. Faculty of Plantation and Agrotechnology 2019 Student Project NonPeerReviewed Rosli, Rabiahtul Adawiah (2019) Effect of altering N application timing on critical paddy development and rice production / Rabiahtul Adawiah Rosli. [Student Project] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
topic	Fertilizers and improvement of the soil
spellingShingle	Fertilizers and improvement of the soil Rosli, Rabiahtul Adawiah Effect of altering N application timing on critical paddy development and rice production / Rabiahtul Adawiah Rosli
description	Nitrogen is the most limiting nutrient in rice production. Nitrogen fertilizer is susceptible to losses through volatilization, denitrification and leaching. The time of application often does not match with period of crop demand. Adjusting the timing of nutrient application especially nitrogen could potentially improve the nutrient uptake and reduce nutrient losses to allow better nutrient efficiency. A greenhouse experiment was conducted to determine the best of nitrogen fertilizer application timing to improve development and rice production of two Malaysian rice cultivars (MR219 and MR269). The experiment consisted of four treatments applied each at 120 kg ha-1 of N in the form of urea. For T1, N was applied on 15, 35 and 55, T2 was applied on 12, 32, and 52, T3 was applied on 18,38 and 58, and T4 was applied on 21, 41 and 61 days after seeding (DAS) with three replications. Plant physiological parameters such as plant height, tiller, panicle, straw, SPAD and 100-grain weight did not show significant differences. Only total grain weight showed significant differences among the treatments. The application of N also resulted in an increase by 12.13% in plant biomass. The results demonstrate that the split application of fertilizer N at PI stage (58 DAS) significantly increased percentage of 100-grain weight and total grain yield compared to the control treatment, which is applied on 15, 35, and 55 DAS. Farmers should be advised to apply N between 52 DAS and 58 DAS, even though application of N at 58 DAS was significantly better than 55 DAS in terms of yield production.
format	Student Project
author	Rosli, Rabiahtul Adawiah
author_facet	Rosli, Rabiahtul Adawiah
author_sort	Rosli, Rabiahtul Adawiah
title	Effect of altering N application timing on critical paddy development and rice production / Rabiahtul Adawiah Rosli
title_short	Effect of altering N application timing on critical paddy development and rice production / Rabiahtul Adawiah Rosli
title_full	Effect of altering N application timing on critical paddy development and rice production / Rabiahtul Adawiah Rosli
title_fullStr	Effect of altering N application timing on critical paddy development and rice production / Rabiahtul Adawiah Rosli
title_full_unstemmed	Effect of altering N application timing on critical paddy development and rice production / Rabiahtul Adawiah Rosli
title_sort	effect of altering n application timing on critical paddy development and rice production / rabiahtul adawiah rosli
publisher	Faculty of Plantation and Agrotechnology
publishDate	2019
url	http://ir.uitm.edu.my/id/eprint/24455/
first_indexed	2023-09-18T23:12:37Z
last_indexed	2023-09-18T23:12:37Z
_version_	1777418903213834240

Effect of altering N application timing on critical paddy development and rice production / Rabiahtul Adawiah Rosli

Similar Items