A mix of peat moss, vermiculite, or perlite, and compost or organic fertilizers, can provide a suitable environment with sufficient water-holding capacity, nutrient content, and aeration for plant growth and development.
In standard greenhouse fertilizers, nitrogen is supplied as ammonium, nitrate, or urea. Each of these three nitrogen sources, when taken up by plant roots, produces different chemical reactions with differing effects on the growing medium pH.
Manufacturers are delivering new growing media products to help growers attempt to minimize their footprint without sacrificing quality. Here are nine new products to consider for your greenhouse operation.