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近年来，随着小麦单位面积产量和氮磷钾施肥水平的不断增长，制约小麦高产的因子已从大量元素转变为微量元素。加之，省内大部麦区土壤缺硼，从而已成为影响小麦进一步实现高产的一个主要因素。据武强县农业局进行的多年多点肥料试验表明，在小麦生长发育的各个时期，叶面喷硼
In recent years, with the continuous increase of yield per unit area of wheat and NPK fertilization, the factors restricting the high yield of wheat have changed from a large number of elements to trace elements. In addition, the lack of boron in most of the wheat areas in the province has become a major factor that affects the further wheat yield. According to Wuqiang County Bureau of Agriculture for many years more fertilizer experiments show that in all stages of wheat growth and development, foliar boron spraying