Effect
Decreased produce quality
Increased nutrient availability in soil or substrate
Bio Kombi treated Creeping bentgrass, cv. Penn A-1/Penn A-4/Penn G-6, grown in a golf green had a 27.4 % lower turf grass quality, a 17.5 % lower turf color score, a 29 % lower tiller density, 4.9 % more winter injury, 6.2 % less plant coverage, 250 % more plot area infected by diseases, a 4.8 % higher soil pH, soil contained 26.7 % less P, 4.7 % more K, 9.5 % more Mg, 7.3 % more Ca and 28.6 % more Na compared to the control treated with a mineral fertilizer (Arena).
Trial details
outdoor, unprotected, soil grown (12 % (v/v) sphagnum peat in root zone layer), optimal cultivation of golf green
Norway
Crop
Creeping bentgrass, Agrostis stolonifera L.
Trial application
Method
Spread over soil
Timing
First treatment in start of growing season (May), followed by 6 treatments with a 2 or 4-weeks interval till the end of the growing season
Rate
1.06-1.76 kg/100 m² (dose depended on the week)
2009
Evaluation of organic fertilizers and biostimulants on sandbased golf greens and football pitches under Scandinavian climate conditions
BioForsk report
2
919-931
Crop group
