99热.com_成人两性视频_秋霞一区二区三区_丝瓜草莓榴莲向日葵香蕉

Rice seeding substrate

Rice seeding substrate

Particle size (mm)

0-5

pH

5.0-6.5

EC (ms/cm)

1-3

Unit weight (kg/m3)

300-400

Water content (%)

40%-45%

Fertilizer efficiency

N+P2O5+K2O≥2%

Packing capacity

Non-compression packing, 50L±2L/pack