Wpływ niektórych detergentów i humianu oraz rodzaju ściółek na plon pomidorów w uprawie hydroponicznej [Effects of some detergents, humate and composition of the seedbed on the crop of tomato plants in hydroponics]

It has been found that in the initial stage, single doses of detergents have distinctly stimulated the vegetative development of plants when humates are available. When detergents were applied every four weeks in the hydroponic culture in which the seedbed does not contain active humates, the crop decreases by 50%. This negative effect does not appear when the seedbed is a mixture of brown coal with peat