Abstract
Studies were carried out for two years to determine the effect of different levels of major (NPK) and trace (Zn, B) nutrient elements on the growth and yield of direct seeded rice on farmer’s field in village Dhallah, Dera Ismail Khan (KPK) Pakistan. The experiments were laid out in Randomized Complete Block Design (RCBD) with three replications. The net plot size was 2.5 x 5m (12.5m-2 ) with 10 rows. IR-6 was used as test variety of rice. The combination of fertilizer levels comprised of eight treatments. The fertilizer rates included T1 = 100% recommended fertilizer dose (RFD) without micronutrients, T2 = 100% RFD + 5.0 Kg Zn + 1.0 Kg B ha-1 , T3 = 100% RFD + 5.0 Kg Zn ha-1 , T4 = 100% RFD + 7.5 Kg Zn ha-1 , T5 = 100% RFD + 0.5 Kg B ha-1 , T6 = 100% RFD + 1.0 Kg B ha-1 , T7 = 75% RFD + 5.0 Kg Zn + 1.0 Kg B ha-1 and T8 = 50% RFD + 5.0 Kg Zn + 1.0 Kg B ha-1 . Application of various doses of macro along with minor nutrient fertilizers significantly influenced the final plant height (cm), productive tillers m-2 , panicle length (cm), number of grains panicle-1 , 1000-grain weight (gm), biomass (t ha-1 )and paddy yield (t ha-1 ). The data showed that the paddy yield was significantly higher in the plot of T2 than that of all other treatments
