原帖由 ann 於 2007-9-19 08:29 發表
feu feu, 我是新手, 想請問怎樣"少d氮肥"?
Usually there are three numbers written on the fertilizer:
e.g. N : P : K = 30:10:10
Which means there are 30% Nitrogen compand (氮) , 10% Phosphorus compand (磷) and 10% Potassium compand (鉀) respectively
or N : P : K = 10:10:10
Which means there are 10% Nitrogen compand (氮) , 10% Phosphorus compand (磷) and 10% Potassium compand (鉀) respectively
So, the second one in the example would have 少 d 氮 肥 lor
[ 本帖最後由 David 於 2007-9-19 09:33 編輯 ] |