The effect of vermicompost produced from the SMC impregnated with copper oxide (CuO) and Zinc Oxide (ZnO) nanoparticles on some properties of the wax bean

In order to study the effect of vermicompost containing copper oxide and zinc oxide nanoparticles on was beans, in an experiment factorial were done based on a randomized complete block design in three replications. The experiment treatment were as follows: nanoparticles in 4 levels (0, 0.4, 0.8 and 1.2 g/kg weight of substrate), vermicompost in 3 levels (2.5, 5 and 7.5 g/kg-1 weight of substrate) and kind of nanoparticles in 2 levels (copper oxide and zinc oxide). After preparation of substrates, to any one of them was added adult worm Eisenia fetida and after a week were added nanoparticles to substrate as a solution. After three months, vermicompost prepared according to the weight of cultivation substrate was cultivated with mix soil and wax bean as a wet planting. Results showed, with increasing copper oxide and zinc oxide nanoparticles decreased pod length, number of pod in bush, biological yield, grain yield, harvest index and grain protein and increased concentration copper and zinc in grain. In similar level nanoparticles (except first level), pod length, number of pod in bush, grain yield, weight of hundred grains, stem length and harvest index in zinc oxide nanoparticles were more than copper oxide nanoparticles.The least pod length, number of pod in bush, weight of pod, grain yield and harvest index obtained in forth level copper oxide nanoparticles. Also absorbtion and accumulation of zinc oxide nanoparticles in grain was more than copper oxide nanoparticles.