METHOD OF PREPARING SUPPLEMENTARY FEEDING FOR PLANTS Russian patent published in 1999 - IPC

FIELD: agriculture, more specifically feedings for vegetable and floral crops. SUBSTANCE: feeding is prepared by using liquid complex fertilizers comprising nitrogen and phosphorus and subsequently adding organic constituent in the form of humic acid peat fraction isolated with 0.8-2.5 % aqueous solution of potassium hydroxide in amount of 0.4-0.8% based on feeding weight. Ammonium nitrate is further added to feeding, and then nitric acid in amount of 30-33% and 24-26%, respectively, with respect to nitrogen based on its total content higher agrochemical value which is useful for soil of different types. EFFECT: more efficient preparation method. 5 ex, 6 tbl