Bone meal is great fertilizer.

骨粉是很好的肥料。

Bone meal and nitrates are common fertilizers.

粉和硝酸盐是普通的肥料。

Bone meal is another source of minerals that is inexpensive.

骨粉是矿物质的另一个来源并且也不是很贵。

Rotted manure, bone meal, and dried blood can also be added.

腐烂的肥料、骨头饭、干的血也可以加进去。

This kind of bone meal is from the animal dying of illness at first.

这样的肉骨粉是来自动物死亡的疾病在第一。