Composite water-retention synergistic chemical fertilizer

The invention discloses a composite water-retention synergistic chemical fertilizer. The chemical fertilizer comprises 88-92 wt% of a nitrogen fertilizer, 1-2 wt% of ammonium lauryl alcohol ethoxy sulfate, 1-2 wt% of a water retaining agent, 2-3 wt% of composite biological bacteria, 1-2 wt% of humic acid, 1-2 wt% of zeolite powder and 1-2 wt% of bentonite. The composite water-retention synergisticchemical fertilizer can effectively improve the aggregate structure of soil, eliminate soil hardening and enhance the permeability of the soil, so the fertilizer utilization rate is increased, the water retention capability of the soil is enhanced, the soil structure is improved, the growth of crops is promoted, and the quality of the crops is improved. 本发明公开了种复合型保水增效化肥，该化肥由下述重量配比的成分组成：氮肥88%-92%、月桂醇乙氧基硫酸铵1%-2%、保水剂1%-2%、复合生物菌2%-3%、腐殖酸1%-2%、沸石粉1%-2%、膨润土1%-2%。本发明提供的复合型保水增效化肥能有效地改善土壤团粒结构，消除土壤板结和增强土壤渗透能力，从而提高肥料利用率和增加土壤保水能力，改良土壤结构，促进农作物生长，改善农作物品质。