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Table 4 Proximate composition of rice grains when paddy was harvested at different days from 50% flowering and potassium fertilizer rates applied at the time of heading

From: Increased rate of potassium fertilizer at the time of heading enhances the quality of direct seeded rice

Grain parameters Harvesting age in days after 50% flowering (DAFF)d Rate of MOP applied at the time of heading (kg/ha)d
25 30 35 40 12.5 25 37.5
Crude protein (%) 5.86 ± 0.05a 6.00 ± 0.05ab 6.18 ± 0.03b 6.24 ± 0.04c 5.87 ± 0.03a 6.08 ± 0.05b 6.24 ± 0.03c
Crude fat (%) 2.23 ± 0.05a 2.42 ± 0.06b 2.60 ± 0.06c 2.61 ± 0.07c 2.43 ± 0.04a 2.44 ± 0.06a 2.52 ± 0.07a
Amylose (%) 17.84 ± 0.4c 17.40 ± 0.3b 16.10 ± 0.4a 16.00 ± 0.3a 17.13 ± 0.4b 17.6 ± 0.4b 15.71 ± 0.2a
  1. MOP muriate of potash (potassium fertilizer; 60% K2O)
  2. Mean (± SE) followed by the same superscript within a raw is not significantly different (P > 0.05) as measured by the DNMRT
  3. dData present as mean ± SE