Abstract
Nitrogen fertiliser is an important crop management practice used to increase yield. Growers use the previous growing history of a paddock to determine the correct nitrogen (N) rate, as there is no appropriate soil N test for rice. In south-eastern Australia, the total N rate is often split into two applications to reduce the risk of sterility induced by cold temperatures and high N uptake. This strategy involves a basal N application applied pre-permanent water (PW) and the second application following panicle initiation (PI). While previous research demonstrates that split N application (Pre-PW and PI) affects crop yield, data investigating the impact on grain quality is relatively sparse. Using the medium-grain, semi-dwarf rice variety YRM70, we compared the effect of eight N treatments (Five N rates applied pre-PW and three split treatments with the same total N rate) on grain quality parameters and protein composition. These data revealed increasing the rate of N applied pre-PW significantly increased whole grain yield (WGY; the proportion of whole grain expressed as a percentage of harvested grain), however, splitting the same total N rate into two applications reduced WGY.
Original language | English |
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Pages | 105 |
Number of pages | 1 |
Publication status | Published - 12 Sep 2018 |
Event | 68th Australasian Grain Science Conference - Charles Sturt University, Wagga Wagga, Australia Duration: 10 Sep 2018 → 13 Sep 2018 https://www.ausgrainscience.org.au/wp-content/uploads/Conference2018/Booklet-2018.pdf (Conference booklet) |
Conference
Conference | 68th Australasian Grain Science Conference |
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Abbreviated title | Grain Science Transforming our Future |
Country/Territory | Australia |
City | Wagga Wagga |
Period | 10/09/18 → 13/09/18 |
Internet address |