Abstract
Rice crop suffers from magnesium (Mg) deficiency in many locations of Muda Irrigation Scheme, Kedah, Malaysia. As a result nitrogen (N) efficiency is low in rice culture. It is necessary to evaluate the effects of Mg fertilization on rice yield and N use efficiency. A greenhouse experiment was conducted at Universiti Putra Malaysia during May to September 1998 to evaluate the effects of N and Mg fertilization on rice yield and fertilizer N efficiency in two soils (Guar and Hutan series). Nitrogen was applied as 15N labeled urea. Nitrogen and Mg application increased grain yield significantly in both the soils. Regression analysis indicated that estimated grain yield response to added N was linear in Guar series while it was quadratic in Hutan series. Estimated grain yield response to added Mg was quadratic in nature in both the soils. 15N atom excess in both grain and straw increased significantly with increasing N rates. Magnesium fertilization increased fertilizer N uptake and recovery (%) of fertilizer N significantly. These findings suggest that there is a prospect to increase rice yield and fertilizer N efficiency through Mg fertilization.
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Claims 8
Claim · model-written summary
Nitrogen application significantly increased rice grain yield in both soils.
- Taxon
- rice
Oryza sativae1 - Treatment
- Nitrogene0
- Outcome
- grain yielde0
- Direction
- increasede0
- Qualifier
- both the soilse0
- Setting
- Universiti Putra Malaysiae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen and Mg application increased grain yield significantly in both the soils.”
e1“rice yield and fertilizer N efficiency in two soils (Guar and Hutan series)”
e2“A greenhouse experiment was conducted at Universiti Putra Malaysia”
Claim · model-written summary
Magnesium application significantly increased rice grain yield in both soils.
- Taxon
- RICEOryza sativat0
- Treatment
- Mg applicatione0
- Outcome
- grain yielde0
- Direction
- increasede0
- Qualifier
- both the soilse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nitrogen and Mg application increased grain yield significantly in both the soils.”
t0“RICE”
Claim · model-written summary
Estimated rice grain yield response to nitrogen was linear in Guar soil.
- Taxon
- RICEOryza sativat0
- Treatment
- added Ne0
- Outcome
- estimated grain yield responsee0
- Qualifier
- lineare0
- Setting
- Guar seriese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regression analysis indicated that estimated grain yield response to added N was linear in Guar series while it was quadratic in Hutan series.”
t0“RICE”
Claim · model-written summary
Estimated rice grain yield response to nitrogen was quadratic in Hutan soil.
- Taxon
- RICEOryza sativat0
- Treatment
- added Ne0
- Outcome
- estimated grain yield responsee0
- Qualifier
- quadratice0
- Setting
- Hutan seriese0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Regression analysis indicated that estimated grain yield response to added N was linear in Guar series while it was quadratic in Hutan series.”
t0“RICE”
Claim · model-written summary
Estimated rice grain yield response to magnesium was quadratic in both soils.
- Taxon
- RICEOryza sativat0
- Treatment
- added Mge0
- Outcome
- Estimated grain yield responsee0
- Qualifier
- quadratic in nature in both the soilse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Estimated grain yield response to added Mg was quadratic in nature in both the soils.”
t0“RICE”
Claim · model-written summary
Increasing nitrogen rates significantly increased 15N atom excess in grain and straw.
- Taxon
- RICEOryza sativat0
- Organ / stage
- grain and strawe0
- Treatment
- increasing N ratese0
- Outcome
- 15N atom excesse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“15N atom excess in both grain and straw increased significantly with increasing N rates.”
t0“RICE”
Claim · model-written summary
Magnesium fertilization significantly increased fertilizer nitrogen uptake and recovery.
- Taxon
- RICEOryza sativat0
- Treatment
- Magnesium fertilizatione0
- Outcome
- fertilizer N uptake and recovery (%) of fertilizer Ne0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Magnesium fertilization increased fertilizer N uptake and recovery (%) of fertilizer N significantly.”
t0“RICE”
Claim · model-written summary
The authors conclude magnesium fertilization offers prospects for increasing rice yield and fertilizer nitrogen efficiency.
- Taxon
- riceOryza sativae0
- Outcome
- increase rice yield and fertilizer N efficiency through Mg fertilizatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“These findings suggest that there is a prospect to increase rice yield and fertilizer N efficiency through Mg fertilization.”
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