Durability：Two years

Storage requirements：Moisture resistance, crushes resistance! Not against the wall, floor with plastic film, if caused by improper storage block moisture will swell inadequate nutrition, produce small voids, thus may cause water loose.

Duration:35days\50days

Midium:20mm*40mm (high*wide),24g/block,600 blocks/box,15KG.(35 days)

Large:20mm*48mm(high*wide),34g/block ,500 blocks/box, 17.5KG.(50 days)

Scope: Seed breeding of flowers, vegetables, fruits, tobacco, cotton, trees and other plants.