FIELD: agriculture.
SUBSTANCE: invention relates to an agricultural product, to a method of fertilising soil, as well as to a method of fertilising plants. Agricultural product includes fertiliser and a polymer mixed with fertiliser. Polymer is an anionic polymer comprising at least four repeating units that are distributed along the length of the polymer chain. Repeating units include at least one maleic, itaconic and sulphonate unit. Method of fertilising soil comprises applying said agricultural product to the soil. Method of fertilising a plant comprises applying an effective amount of said agricultural product to a plant, the leaves of the plant or the seeds of the plant.
EFFECT: invention allows to obtain a biodegradable polymer that dissolves well in water, which is able to increase the absorption of nutrients and increase yield.
16 cl, 18 tbl, 13 ex
