在冬小麦全生育期降水偏少的情况下，研究了“吨田宝”喷施剂量与喷施时期对冬小麦的影响。结果表明，喷施吨田宝能显著改善冬小麦的主要性状，拔节期用吨田宝450 mL/hm2对水450 kg喷施、灌浆期用吨田宝750 mL/hm2对水450 kg喷施时冬小麦折合产量最高，达5 613.64 kg/hm2，较喷清水对照增产801.14 kg/hm2，增产率16.65%。

The effects of spraying dosage and spraying time of Dongtianbao on winter wheat are studied in the case of less precipitation of the whole growth period of winter wheat. The result shows that the main characters of winter wheat could be improved by spraying tons of wheat， the yield of wheat is the highest， reached 5 613.64 kg/hm2 and 801.14 kg/hm2 higher than of the check，and increasing rate is 16.65%， with Dongtianbao 450 mL/hm2 add water to 450 water at jointing stage， and Dongtianbao 750 mL/hm2 add water to 450 water at filling stage.

S512.1

2014年“陇原青年创新人才扶持计划”项目(甘组通字[2014]93号)部分内容