蓟县上仓公社后秦各庄小学和县磷肥厂一起,为了解决当地土壤板结、缺磷,造成农作物容易倒伏,果实籽粒不太饱满的问题,他们根据硼镁磷肥含有磷分,能防止土壤板结,而且价钱便宜,施用简单的特点,决定在学校小农场里进行硼镁磷肥的肥力实验,以便取得经验,逐步推广。 After the Qincang Village of Shangcang County of Yixian County, together with the county’s phosphate fertilizer plant, in order to solve the problem of local soil compaction and phosphorus deficiency, crops are prone to lodging and the grain of the fruit is not sufficiently plump, they contain phosphorus in accordance with the boron magnesium phosphate fertilizer and can prevent soil compaction. , And the price is cheap, the use of simple features, decided to carry out the fertilization experiment of boron magnesium phosphate fertilizer in small schools in order to gain experience and gradually promote.