Chemical fertilizer is hurtless . The problem of the fertilization comes from unreasonable use .

化肥本身是无害的，有害的是对化肥的不合理施用。

Rises to transport the chain potato seeder is one kind of sowing seeds massive potato seed tuber 's seeder . With its simple structure , reliable operation , high efficiency , and hurtless to plants , this machine is widely applicated both in domestic and foreign country .

升运链式马铃薯播种机是一种块状马铃薯播种机，其结构简单，工作可靠，效率高，不伤种，在国内外正逐渐得到广泛的应用。