我县晚秋十年九旱,严重影响小麦冬前分蘖、扎根、壮苗。为此,近几年我县改变了小麦浇封冻水为浇冬前水,也叫小麦分蘖盘根水。对增根、增蘖、壮苗、增产起到显著作用。据调查当土壤含水量降到17%以下,及时浇小麦分蘖盘根水比浇封冻水的小麦单株的次生根增加48%,冬前分蘖增加20%,单株大蘖增加14%、增产23%。小麦分蘖水为什么能增产呢?从小麦冬前生长规律来看,主要靠底墒转化籽粒的营养物质,以供种子根和主茎三片叶用之。这是由异养转化为自养的重要条件。当小麦主茎长出三片叶后即开始分蘖和喷发次生根,并 Nine counties in late autumn and ten dry in our county, seriously affecting winter tillers, rooted, strong seedlings. To this end, in recent years my county changed the frozen wheat water poured into the winter before the water, also known as tillering of wheat water. For root, tillering, strong seedlings, increase production play a significant role. According to the survey, when the soil water content dropped to less than 17%, the secondary roots of the wheat tillering-in-time and timely-pouring wheat increased by 48%, the tillers increased by 20% and the tillering per plant increased by 14% twenty three%. Why wheat tillering water yield? From the law of winter wheat growth, mainly by the end of moisture transforms the kernels of nutrients for the seed root and the main stem of the three leaves used. This is an important condition that converts from heterotrophic to autotrophic. When the main stem of wheat grew out of three leaves, tillers and eruption of secondary roots started