速效氮 | |
ecol. | available nitrogen |
磷 | |
gen. | phosphorus; phosphorus |
earth.sc. | phosphorus; phosphors |
environ. | phosphorus |
met. | phosphor; phosphorus |
space | phosphorus |
steel. | P |
钾含量 | |
desert. | potassium content |
| |||
available nitrogen |
速效氮 : 3 phrases in 2 subjects |
Agriculture | 1 |
Ecology | 2 |