一、目的和意义我区小麦生育后期灾害性气候危害严重 ,尤其干热风、青枯发生频繁 ,导致粒重不稳 ,品质下降。高新科技产品“ＢＮ丰优素”是新一代植物生长调节剂 ,其研究课题曾获 1 997年国家科技进步二等奖。据省内外多年多点试验示范表明 ,该产品能显著提高小麦植株对青枯、 First, the purpose and significance Our region wheat harms late serious harm, especially hot and dry wind, frequent occurrence of green wilt, leading to grain weight instability, quality decline. High-tech products, “BN abundance of prime” is a new generation of plant growth regulator, the research project won the 1997 National Science and Technology Progress Award. According to many years of demonstration experiments at home and abroad show that the product can significantly improve the wheat plant on the withered,