1	改良土壤：改善土壤的物理特征，改良土壤团粒结构，减少土壤密实性，从而达到良好的状态。增加土壤的阳离子交换能力和保肥能力，吸附及交换植物营养，提高肥料缓效性，增加土壤的保肥保水能力。
2	提高肥料利用率：与氮、磷、钾等元素结合制成的腐植酸类肥料，具有肥料增效、改良土壤、刺激作物生长、改善农产品质量等功能。
3	促进植物生长：促进分解人造或天然的毒性物质，提供土壤有益微生物的活动，提高作物的呼吸和光合作用，增强作物的抗逆能力，如抗旱、抗寒、抗病等。
4	提高作物品质：提高叶片中的叶绿素含量，增强作物的光合作用，合成更多的光合产物，从而改善农产品的品质。
5	抗重金属污染：通过吸附土壤中含有的有害阳离子，有效降低土壤盐的浓度，改良盐碱地，并有效防止重金属污染。

1	Production of humic acid fertilizer, the proposed dosage is 5-10%.
2	Base fertilizer: Used for root fertilization, 10-20kgs per 666㎡, supply potassium element, plenty of organic matter to soil, help to improve soil condition.
3	Foliar Spray: Used as leaf spray fertilizer, dissolve 30-50 grams into 15-30kgs water, solution concentration is 1:500 to 1:1000. Generally apply fertilizer during seedling stage, growth period, flowering phase and fruiting period, total 4-5 times.
4	Drop irrigation, water flush: 5-10kgs per time per 666㎡. Dissolve evenly into fertilizer bucket or wash directly with water. Generally apply fertilizer during seedling stage, growth period, flowering phase and fruiting period, total 4-5 times.
5	Soaking seed, soaking root: Dissolve into water to make 1:2000 concentration solution. Soak 10-24 hours.

腐植酸钾粉/片/不规则颗粒

作用