Potassium humate is a fertilizer additive that improves soil fertility and structure. It slowly releases nitrogen and phosphorus locked in soil, improves microbe activity and micro nutrient absorption. It also buffers soil pH to make nutrients more available to plants. Using potassium humate increases fertilizer efficiency, promotes plant growth, increases yields by at least 30%, and improves drought and frost tolerance. It is applied at 5-10 kg/ha with or mixed into other fertilizers.

1. Potassium Humate
Published on August 1, 2012, in Potassium Fertilizer, Soluble Humate.
1. Definition
Potassium humate has prominent effect to fix and slow release nitrogen also release
the phosphorous locked by Fe3+,Al3+ in the soil,meanwhile optimize micro element
absorption and create a suitable environment for microbia, naturally work as
additives for fertilizers, especially nitrogen fertilizer.
2. Typical Analysis
Appearance Black Granule Black Brown Powder
Water-solubility(dry
basis) 80.0% min 80.0% min
Humic acid(dry basis) 60.0% min 60.0% min
Potassium(K₂O dry
basis) 10.0% min 10.0% min
Nitrogen(organic) 0.35% 0.35%
Fe 0.1% 0.1%
P₂O 0.02% 0.02%
Moisture 15.0% max 15.0% max
pH 9.0-11.0 9.0 – 11.0
Sieve residue (0.5mm) 5.0% max
Size Rate(1-5mm) 95.0% min
Product code CXHA-KHA-G CXHA-KHA-P
3. Function & Benefits
1) Largely increase the efficiency of fertilizers,especially Urea,ammonium
sulfate,DAP,MAP.
2) Optimize the structure of soil to increase the buffering power and fertility
of soil.
When the soil is less fertile also sandy to some extent ,humic acid will increase
its cation exchange capacity to retain water and beneficial micro
nutrient ,accordingly largely increase the fertility of soil.Under heavy and compact

2. conditions,Humic acid will work with fungi to construct a crumb structure root to
absorb water oxygen and nutrient also improve root penetration.
3) Neutralize both acidic and alkaline soil to release the beneficial metal ion,thus
promote absorption by plants.
When the soil is alkaline, many beneficial meatal ion and other trace elements can
not be absorbed by plants,humic acid can buffer the pH and convert the nutrients
and trace elements into absorbable form and promote their uptake by the roots.
When in acidic soil, humic acid will tremendously reduce the toxins such as the ally
aluminum and heavy metals, which will be bonded firmly and immobilized ,thus their
toxicity is reduced and phosphate is bonded by aluminum is released.
Under Salinalised soil: Salts are split up by the high cation exchange capability,
cation (eg.Ca, Mg) are bonded and chelated.
4) Promote plants growth also largely crease the yield and quality .
Humic acid stimulates the membrane of seeds to form a strong roots ,which is decisive
to increase the capacity of root to take up both micro and macro nutrients .Based
on improved structure by humic acid N is largely stored and slow released ,P is
release from AL in soil,also other microelement is in the form of easy-available
by plants,meanwhile the beneficial fungi is active to produce different kind
enzymes.with the above joint effort,the yield will be increased at lease 30%.
Enhanced cell assimilation as well as photosynthesis increase the plant’s sugar and
vitamin content,thus the quality of their seeds will be largely increased.
5) Largely increase the plants’ ability to anti drought,frost under stressed
plants’
conditions.
Humic acid can mobilize K absorption to regulate the stomata open and close on the
leaves also promote metabolism ,thus increase the plants’ ability under stressed
conditions.
6) Detoxify the herbicide and pesticide residues.
4. Direction for use
Base fertilizer: 5-10kgs/ ha, better to be applied with N, P fertilizers.Mixed with
Nitrogen fertilizer: 5% of total blend ie. 5kgs of potassium humate per 100kgs of
Urea. Also it depends on the soil condition.
Irrgation:5-8kgs/ha/time
Caution: Dissolve the material in a small tank and do filtering when used for drip
irrigation tank, The residues can be used as base fertilizer.
5. Package
1) Woven bags with poly bags inside 25kgs net weight,
2) Jumbo bags with dischargeable open on the bottom,with poly bags inside.
3) Can satisfy the customer’s requirement.
http://www.humicacidcorp.com/potassium-humate.html