| 摘要 |
FIELD: mixed fertilizers. ^ SUBSTANCE: fertilizer contains brown coal with particle size 0.001 to 5 mm and additive, in particular biological humus, at weight ratio 1:(0.001-0.05). Prior to be mixed with additive, brown coal is ground to required particle size. Mixing is carried out until homogenous free flowing product is obtained. Fertilizer can be used to raise fertility as product accessible for any user from individual summer residents to large agricultural economies. ^ EFFECT: reduced cost of product. ^ 7 cl, 3 tbl, 6 ex |
