(short technical report) effect of silver nano particles, magnetic field, barium and lithium on grain yield and some agronomic characteristics of wheat

in order to study the effects of silver nano particles, magnetic field in corporation with barium, lithium and micronutrient fertilizers on wheat, an experiment was conducted at research farm of razavi research and technology institute in 2008. experiment carried out with eigth treatments based on randomized complete block design with four replications. treatments were including (t1) magnetic field and silver nano particles + ba(no3)2 (t2) magnetic field and silver nano particles + lino3 (t3) magnetic field and silver nano particles (t4) magnetic field and silver nano particles + ba(no3)2 + lino3 + znno3 (t5) double concentration of t3 (t6) kemira fertilizer (t7) fe and zn chelate and (t8) control (npk). results showed that magnetic field and silver nano particles (t3) had the highest grain yield (4059 kg/ha). grain yield in t3 was 29.5 percent more than control. t3 treatment showed the greatest harvest index, and t4 showed the lowest. experiment treatments not affected on traits such as height, plant per area, straw yield biological yield and spad significantly. it seems that silver nano particles and magnetic field had the best effect on wheat growth and yield and may be suitable alternative for chemical fertilizers in agriculture.