“天达2116”对西藏冬青稞生长发育的影响研究

为解决西藏作物生产上易受干旱、霜冻危害寻找安全环保的新途径，选择“天达2116”对冬青稞进行拌种、叶面喷施、春天复壮、拌种+叶面喷施、拌种+春天复壮、拌种+复壮+叶面喷施等6个处理，研究其在高原这种特殊生态环境条件下对西藏冬青稞生长发育的影响。结果表明，6个处理的青稞籽粒产量均高于对照，依次比对照增产4.84%、29.49%、19.19%、14.35%、19.03%、38.07%，其中“拌种+复壮+叶面喷施”处理青稞的增产幅度最大，达38.07%，主要是通过提高青稞的千粒重、单株有效穗数来提高其产量；6个处理的青稞秸秆产量均高于对照，且增产趋势与子粒增产趋势基本一致；6个处理的青稞子粒每公顷比对照经济效益高324.30元，2047.80元，1293.30元，901.50元，1244.25元和2601.30元。因此，建议“天达2116”在西藏青稞上应用以“叶面喷施”或“拌种+复壮+叶面喷施”2个处理为最佳。

Study on the Effect of “Tianda2116” on the Growth of Highland Barley in Winter, in Tibet

To prevent Tibetan crops from drought and frost,the author 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...