Zinc (Zn) is an essential micronutrient that plays a vital role in various physiological and biochemical processes in rice. Its deficiency is a common nutritional disorder in rice growing regions, often leading to impaired growth and reduced yields. To address this issue an experiment was executed to assess of zinc application on the yield ability of aromatic Boro rice cv. BRRI dhan50. The study comprised ten zinc treatment regimes, including a control (0 kg Zn/ha) of various combinations of basal, soil (SA) and foliar applications (FA) with zinc rates ranging from 1.0 to 6.0 kg Zn/ha. Results revealed a significant response of rice yield components to zinc application. The treatment involving 2.0 kg Zn/ha (basal) + 1.0 kg Zn/ha (SA at 30 DAT) + 1.0 kg Zn/ha (FA at flag leaf) produced the highest values for total tillers/hill (15.36), panicle length (23.04 cm), 1000-grain weight (20.64 g), grain (5.38 t/ha) and straw (6.56 t/ha) yields while control treatment exhibited the lowest values. The results indicate that the most effective zinc application strategy for maximizing grain yield in BRRI dhan50 is the application of 2.0 kg Zn/ha as basal, followed by 1.0 kg Zn/ha at the seedling stage (SA) and 1.0 kg Zn/ha at the flowering stage (FA), in combination with the recommended NPK fertilizers.
Nishad et al. (Thu,) studied this question.