APPLICATION OF HUMIC ACIDS OF THE OXIDIZED BROWN COAL OF DEPOSIT OF ULААN - ОVОО AT GROWING OF POTATO
Influence of the humic acids got from the naturally oxidized high-humus brown coal of mongolian deposit of Ulaan is studied - Оvоо and distinguished after oxidization of littlehumus coal of this deposit by an aquafortis, suroxide of hydrogen and permanganate of potassium on the productivity and quality of potato of sort of Sarma. The increase of the productivity and to stability of potato is shown to the yellow-green nematode at bringing, both separately humic acids and jointly with mineral or organic fertilizers.