DO NOT put Coffee grounds on your Plants ! - University Research Reveals

In this video we are going to look at a report published on the US Department of Agriculture website revealing research that spent coffee grounds applied directly to plants reduces plant growth. However composting the spent coffee grounds in a specific way and duration can produce a safe product that is beneficial to your garden.
The Scientific research by University of Melbourne is titled ‘Applying spent coffee grounds directly to urban agriculture soils greatly reduces plant growth’.Show more

@Sustainable Journey

Timestamps:
00:00 US Department of Agriculture report
00:10 Spent coffee grounds applied directly to plants reduces plant growth
00:30 Melbourne University research
00:42 Composting coffee grounds must be done under specific conditions
00:55 Plant type experiment range; Leek, Radish, Viola, Sunflower, Broccoli
01:07 Soil types; sandy, sandy clay loam and loam soils
01:20 Spent coffee grounds mixed into soil
01:44 Coffee grounds decrease plant growth
02:00 Nitrogen drawdown of soil by coffee grounds
02:18 Toxic stress response to coffee grounds in soil
02:42 Coffee grounds added to garden above 2.5% likely decrease growth
02:53 Coffee grounds decrease weed growth
03:20 Soil takes over six months to recover from coffee grounds
03:30 Coffee grounds will improve the water holding capacity of soil
03:40 Don't compost more than 20% coffee grounds
04:00 Compost coffee grounds over 2.5% for over six months

US Department of Agriculture link:
https://pubag.nal.usda.gov/catalog/5272385
Melbourne University link:
https://findanexpert.unimelb.edu.au/scholarlywork/1064416-applying-spent-coffee-grounds-directly-to-urban-agriculture-soils-greatly-reduces-plant-growth