EFFECT OF PLANTING DENSITY, SEEDLING NUMBERS, AND AGE AT TRANSPLANTING ON YIELD AND YIELD COMPONENTS OF LOCAL TRADITIONAL RICE VARIETY

Author:
Ernie Suryati Mohamad Zain, Zaki Musa

Doi: 10.26480/trab.02.2023.44.47

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

Sarawak currently has the ability to establish itself as a producer of unique traditional rice that is designated with a geographical indicator (GI) due to its wide variety of traditional rice. The traditional rice varieties are diverse in grain shape, aroma, colour, texture and eating quality. However, because of traditional cultivars’ longer maturation and photoperiod-sensitive, Sarawak only grows rice once a year. Compared to modern rice varieties, it also needs a distinct approach to fertilization management. Therefore, to ensure that the rice plant receives the nutrients it requires and does not receive too much fertilizer, which would cause vigorous droopy leaves the rate and timing of fertilizer application are crucial. In addition to reducing the yield, this circumstance will also attract numerous pests and diseases and result in fertilizer waste. Results showed that for Mamut rice, the optimal age and number of seedlings are 30 days and 3 respectively, while for the plant spacing, 30 cm is recommended. Although no specific fertilization rates are carried out, existing subsidized fertilizers showed the best results for Mamut rice with yield recorded at 3.69 t/ha. However, the optimal rate for each element requires a more detailed study since the study was conducted in a controlled manner. Therefore, verification in the farmer’s field is recommended to confirm the findings of these studies.

Pages 44-47
Year 2023
Issue 2
Volume 4