我场是1996年与外商合资建成,面积达1000多亩的芒果场,我初次知道牛皮肥是1998年的春天,当时献丰肥料厂派人到我们村推销牛皮肥,厂家向我详细地介绍了牛皮肥的成份及使用效果,还给了我两斤样肥,当时我半信半疑的,也不大放在心上,把样肥放在一边忘记了。事隔几个月后,该到果树施肥的季节了,我又记起了这件事,但基于两个原因,我还是没有施用。首先,我认为 My field is built in 1996 with foreign joint venture, covering an area of ​​1000 mu of mango field, I first learned that leather fertilizer is the spring of 1998, when Xianfeng fertilizer plant sent to our village to promote the leather fertilizer, the manufacturer introduced to me in detail The ingredients and the effect of the use of leather fat, gave me two pounds of fertilizer, when I half-hearted, nor much attention, the kind of fertilizer aside forgotten. After a few months, the season of fruit trees fertilization, and I remembered it, but for two reasons, I still did not apply. First, I think