日本55丰满熟妇厨房伦,无码人妻av一区二区三区,欧美,乳夹 震动 走绳play 调教

Vegetable cultivation substrate

Product Series > Cultivation substrate series > Vegetable cultivation substrate

Vegetable cultivation substrate

Product type

High-end product (low-fertilizer type)

General product (high-nutrition type)

Particle size (mm)

0-30

0-30

pH

5.5-6.5

5.5-7

EC (ms/cm)

≤1

1-3

Unit weight (kg/m3)

120-160

250-290

Water content (%)

50%-60%

40%-50%

Fertilizer efficiency

Starter fertilizer

N+P2O5+K2O≥3%

Packing capacity

Non-compression packing, 50L±2L/pack