Abstract
We investigated the effects of split applications of nitrogen (N) on N, phosphorus, and potassium (NPK) uptake and use efficiency of rice under basal surface-application and incorporation methods. Different amounts of N were applied at the basal, tillering, and panicle initiation stages in five N split treatments. Basal incorporation provided greater NPK uptake than basal surface application until initiation of the panicle. In basal surface application, N2 (25:50:25) resulted in the greatest total NPK uptake, use efficiency, and N recovery efficiency. In basal incorporation, N1 (50:25:25) resulted in greater values for all parameters. The N5 (50:0:50), which included omitting N at tillering, resulted in low N recovery efficiency and uptake, both under basal incorporation and basal surface application. These results emphasize that split applications of N influence N recovery efficiency and total NPK uptake and use efficiency of rice.
| Original language | English |
|---|---|
| Pages (from-to) | 2534-2552 |
| Number of pages | 19 |
| Journal | Communications in Soil Science and Plant Analysis |
| Volume | 46 |
| Issue number | 20 |
| DOIs | |
| Publication status | Published - Nov 13 2015 |
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All Science Journal Classification (ASJC) codes
- Agronomy and Crop Science
- Soil Science
Cite this
NPK Accumulation and Use Efficiencies of Manawthukha Rice (Oryza sativa L.) Affected By Pretransplant Basal and Split Applications of Nitrogen. / Moe, Kyi; Yamakawa, Takeo; Thu, Thieu Thi Phong; Kajihara, Yoshinori.
In: Communications in Soil Science and Plant Analysis, Vol. 46, No. 20, 13.11.2015, p. 2534-2552.Research output: Contribution to journal › Article
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TY - JOUR
T1 - NPK Accumulation and Use Efficiencies of Manawthukha Rice (Oryza sativa L.) Affected By Pretransplant Basal and Split Applications of Nitrogen
AU - Moe, Kyi
AU - Yamakawa, Takeo
AU - Thu, Thieu Thi Phong
AU - Kajihara, Yoshinori
PY - 2015/11/13
Y1 - 2015/11/13
N2 - We investigated the effects of split applications of nitrogen (N) on N, phosphorus, and potassium (NPK) uptake and use efficiency of rice under basal surface-application and incorporation methods. Different amounts of N were applied at the basal, tillering, and panicle initiation stages in five N split treatments. Basal incorporation provided greater NPK uptake than basal surface application until initiation of the panicle. In basal surface application, N2 (25:50:25) resulted in the greatest total NPK uptake, use efficiency, and N recovery efficiency. In basal incorporation, N1 (50:25:25) resulted in greater values for all parameters. The N5 (50:0:50), which included omitting N at tillering, resulted in low N recovery efficiency and uptake, both under basal incorporation and basal surface application. These results emphasize that split applications of N influence N recovery efficiency and total NPK uptake and use efficiency of rice.
AB - We investigated the effects of split applications of nitrogen (N) on N, phosphorus, and potassium (NPK) uptake and use efficiency of rice under basal surface-application and incorporation methods. Different amounts of N were applied at the basal, tillering, and panicle initiation stages in five N split treatments. Basal incorporation provided greater NPK uptake than basal surface application until initiation of the panicle. In basal surface application, N2 (25:50:25) resulted in the greatest total NPK uptake, use efficiency, and N recovery efficiency. In basal incorporation, N1 (50:25:25) resulted in greater values for all parameters. The N5 (50:0:50), which included omitting N at tillering, resulted in low N recovery efficiency and uptake, both under basal incorporation and basal surface application. These results emphasize that split applications of N influence N recovery efficiency and total NPK uptake and use efficiency of rice.
UR - http://www.scopus.com/inward/record.url?scp=84946835754&partnerID=8YFLogxK
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U2 - 10.1080/00103624.2015.1085552
DO - 10.1080/00103624.2015.1085552
M3 - Article
AN - SCOPUS:84946835754
VL - 46
SP - 2534
EP - 2552
JO - Communications in Soil Science and Plant Analysis
JF - Communications in Soil Science and Plant Analysis
SN - 0010-3624
IS - 20
ER -