OPTIMISING YIELD IN SKUDUK-CHUPAK’S NON-GRANARY RICE CULTIVATION AREA WITH A SITE-SPESIFIC FERTILIZER RATE and NITROGEN FERTILIZER APPLICATION PROPORTIONS
Author:
Zaki Musa, Ernie Suryati Mohamad Zain, Liza Nuriati Lim Kim Choo
This is an open access article distributed under the Creative Commons Attribution License CC BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
A new specific fertilizer for non-granary area in Skuduk-Chupak is developed through the adoption of site-specific nutrient management (SSNM) approach involving identification of nitrogen (N), phosphorus (P) and potassium (K) requirement with determination of N fertilizer proportion and timing. Total crop NPK requirement obtained from the nutrient omission plot trials carried out in consecutive seasons with targeted yield of 5 t/ha is 86.5:54.7:91.7 kg/ha N, P2O5 and K2O, respectively. Then, N fertilizer proportion and timing studies were carried out for two subsequent seasons and the results showed that the ratio of N at 20% during early tillering, 30% at active tillering and 50% at panicle initiation (PI) stage produced the highest yield (5.03 t/ha) among all treatments. Application of 50% N fertilizer at PI stage contributed to higher number of panicles (380), number of spikelet/panicle (126) and filled spikelet (81.6%).
| Pages | 40-44 |
| Year | 2024 |
| Issue | 1 |
| Volume | 5 |
