Zinnia webinar 1: Successful Germination

pH control

pH control.

• Porous substrate (Up to 20―30% of perlite). • Rinse cocopeat well.

• leavening agent: perlite > sand > zeolite > vermiculite. • Sift the substrate to obtain a uniform particle size 0―5 mm • pH range: 5.5―5.8(5.9) • SME: 0.5 mS/cm • Saturate substrate up to level 5 right before sowing. Level 5 SATURATED Level 4 WET Level 3 MEDIUM Level 2 MEDIUM DRY Level 1 DRY 2 3 4 5 6 7 8

Public

Made with FlippingBook Learn more on our blog