The invention discloses an
organic fertilizer for an improved sandy
saline and alkaline land and a preparation method thereof. The
organic fertilizer for the improved sandy
saline and alkaline land comprises 40-48 parts by weight of animal wastes, 12-18 parts by weight of
plant straws, 8-12 parts by weight of
bentonite, 8-12 parts by weight of
fulvic acid, 6-8 parts by weight of peach pit
powder,6-8 parts by weight of tobacco leftovers, 3-5 parts by eight of compound
water retention agent and 2-4 parts by weight of sandy soil
adhesive and further comprises 1-3 parts by weight of a
microbial agent and 0.01-0.03 part by weight of rooting
powder. The
organic fertilizer is prepared through granulating the animal wastes, the
plant straws, the
bentonite, the
fulvic acid, the peach pit
powder, the tobacco leftovers, the compound
water retention agent, the sandy soil
adhesive, the
microbial agent and the rooting powder. The organic
fertilizer disclosed by the invention can effectively improvethe
soil structure of the
saline and alkaline land and increase the
soil fertility, reduce the
salinity /
alkalinity, can also improve the water retaining capacity of soil to prevent salt return in match with
plant cultivation, durably and effectively improve the saline and alkaline land and transform a barren beach into a good field after multiple cycles.