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贵州省遵义地区绥阳县1981年发生较大面积的油菜“花而不实”症,经各方面的专家鉴定,认为主要是缺硼引起的症状。1982年一方面在油菜中试范围内大面积推广施用硼肥,一方面开展广泛的对比试验,进一步验证施硼的防治效果。随着甘蓝型油菜面积的扩大,在1982年特定的气候条件下,各县都有不同程度的“花而不实”现象发生,于1982年四月、五月又两次邀请省农科院有关专家和地、县、区农技站技术干部进行调查研究。并对典型的植株、土壤取样进行化验分析。取样时油菜为青荚期(4月底—5月初)采取病株和健株测定
Suiyang County, Zunyi County, Guizhou Province, 1981, a larger area of rape “flower and not real” disease, identified by experts in various fields, mainly due to lack of boron caused the symptoms. In 1982, on the one hand, large-scale popularization and application of boron fertilizer in the scope of pilot trials of rapeseed was carried out. On the one hand, a wide range of comparative tests were carried out to further verify the control effect of boron application. With the expansion of the area of rapeseed, the counties in 1982 under different climatic conditions had varying degrees of “blossoming but not real” phenomena. In April and May 1982, they twice again invited Provincial Academy of Agricultural Sciences Relevant experts and prefectural, county and district agricultural station technical cadres to conduct research. And the typical plant, soil samples for laboratory analysis. Sampling rape pod stage (end of April - early May) to take diseased and healthy strains determination