Abstract:

To prevent Tibetan crops from drought and frost, we chose the breed of barley “Tianda2116” and processed it with 6 different kinds of methods, i.e. seed dressing, leaf spraying, spring rejuvenation, seed dressing plus leaf spraying, seed dressing plus spring rejuvenation, seed dressing plus spring rejuvenation and leaf spraying, to study the effect of each method on the growth of Tibetan barley in winter. The result showed that the grain yields of barley processed in this 6 methods were 4.84%, 29.49%, 19.19%, 14.35%, 19.03% and 38.07% higher than that of the control groups independently. The most increment was achieved by using the last method which could improve the 1000-grain-weight and effective spikes per hill. Residues yields of highland barley processed by the 6 methods were all higher than those of the control groups and the improving trend was in accordance with that of kernels. The beneficial results of the 6 methods were 324.30, 2047.80, 1293.30, 901.50, 1244.25, 2601.30 yuan per hm2, which were higher than those of the control groups. So, it was suggested that leaf spraying and seed dressing plus spring rejuvenation and leaf spraying were the best methods to process highland barley using “Tianda2166” in Tibet.