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Humate Products in Horticulture
Introduction
Humate is a pure and highly active compound formed
from the decomposition of plant matter over thousands of years.
It is a natural growth stimulant. Humate has been researched and
tested for more than 25 years and is being acclaimed by many growers
for its benefits. Repeated treatment of soils and composts with
artificial fertilisers and chemicals cause soils to become drained
of their humic content which is the natural promoter of growth for
plant life. Humate is being used by the amateur gardener, the professional
grower and turfcare specialist and gives a number of benefits. Humate
is a mild biostimulant and, as such, improves the functioning of
plant systems as vitamins do in animals. With Humate, plants make
better use of nutrients that are made available to them and respond
accordingly. Benefits that can be obtained using Humates are:-
» more
massive and deeper root systems
» increased
uptake of nutrients
» greater
resistance to stress caused by excesses of heat or cold or drought
» improvement
in vigour and ability to survive
» increased
size and yield of fruits and vegetables
» increased
microbial activity
Robert L Willcox in 1988 had used Humate in a number
of different trials on golf courses in the USA. The Root Development
Trial at Pine Tree Golf Club at Boynton was of particular interest.
On 4 fairways, 15 trial plots were established. Three of
these were used as control. This trial took place between
26.4.88 and 6.7.88. Grass type was Ormond Bermuda. The initial
length of the grass root was 5".
After the 9 weeks of the trial, the
grass in the control plots had grown to about 6" of
root length. However, the other 12 test plots, all treated
with granular Humate alone, with liquid Humate alone or
with both granular and liquid Humate, showed increases in
root length to between 9" and 13"! The best results
came from those plots treated with both granular and liquid.
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cyclamen
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We are selling the Humate products into all areas
of horticulture and the results we expected when we took on the
products have materialised. The use of very small amounts of these
products can have a tremendous effect on plants and their growth.
Humate is a very effective natural growth stimulant, the results
of which can usually be seen very quickly. We try to persuade amateur
growers, in their first season of using the product, to use it only
on a proportion of their plants and to then compare the "with"
and "without" treatments.
Two of our Humate products, granular Humate and liquid
Humate, were the subject of part of a 1993 research programme at
Leeds University. This study, by Ramadan A. Mohamed, looked at the
mobilization of Cu, Zn, Fe and Mn to wheat by the influence of Humate
in calcareous soil.
He states in his conclusion that "in general,
plant uptake of Cu, Zn, Fe and Mn were significantly increased with
accompanied Humate treatments." He adds, in an accompanying
letter to his report, that the results are significantly important
for using these Humate treatments in world agriculture to improve
nutrients uptake in calcareous soil and to free complex nutrients
from the soil. Take-up of the four micro-nutrients mentioned when
the wheat leaves were examined after 5 and 10 weeks was approximately
double with the Humate treated growing medium compared to the untreated
medium. The pH of the soil in the trial was 7.2.
The ability of Humate to assist in the take-up of
these micro-nutrients is quite phenomenal and serves to demonstrate
how Humate is an exceptional chelating material.
HUMATE PRODUCTS
Humate (granular)
Humate granular is the basic material from which all the Humate
products are derived. Its composition is approximately 70% organic
(humic and fulvic acids) and 30% inorganic.
We now have three different grades of granular Humate
available to the amateur gardener.
These are:-
» Humate
coarse grade, approx 3mm down to powder
» Humate
medium grade 1mm to 0.5mm
» Humate
fine grade less than approx 0.5mm
| Usage rates are about
0.5 to 1kg of Humate to one cubic metre of organic based compost.
This is equivalent to about one to two 5ml level teaspoonfuls
to a 2 gallon (10 litres) bucket! For composts containing
larger proportions of mineral aggregates, eg perlite/grit,
then more granular Humate should be used. For spreading on
to soil, apply Humate at the rate of 60 to 90 grams per square
metre (2 to 3 ounces per square yard) and rake/dig evenly
into the top 10 to 15 centimetres (4 to 6 inches).
For normal potting and for outside work, coarse
Humate is best used. However, for plants in small pots, eg
in the alpine world, the medium grade is recommended. The
grains of this grade will be better distributed in these small
volume pots. On lawns, Humate medium grade should be spread
as a top dressing at the rate of about 2½ kg per 100
square metres two times a year, spring and autumn.
In propagation mixes, fine grade Humate should be used. |
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World Record Breaking Onion
- 16lb 83/8oz -
grown using granular Humate.
It was exhibited at the
Harrogate Autumn Show 2005 |
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Granular Humate breaks down slowly over time, releasing
the beneficial compounds. It is best used in conjunction with liquid
Humate (ie Humate As in solution) and a good fertiliser programme.
Humate As (soluble)
Humate As is a spray dried version of Humate liquid which is, in
turn, manufactured from granular Humate. Humate As and Humate liquid
contain potassium salts. The humic and fulvic acid content of Humate
As is between 64% and 74% whereas the content in Humate liquid is
between 15% and 17%.
We sell only the dry soluble Humate As on this website.
It should be dissolved to produce a mother solution. We suggest
that 60g of Humate is dissolved in water and made up to 250ml. This
solution has the same strength as Humate liquid. It is a faster
acting version of the granular product and is ideally applied both
to foliage and to the roots in a liquid fertiliser solution. The
usage rates of the mother solution are as follows:-
On turf:
Use 25 to 50ml per 100m² appropriately diluted. Repeat after
7 to 14 days. Then apply 50ml diluted per 100m² fortnightly
during the growing season.
Compost mixing: Add
50ml diluted in water to one cubic metre of compost. (5ml diluted
to 100 litres of compost.)
Seed soaking:
Soak seed in a solution of 5ml in 100ml of water.
Root dipping: Mix
5ml (1 teaspoonful) in 500ml water and dip roots in solution for
2 to 3 minutes.
Watering: Mix 5 ml
(1 teaspoon) in 10 litres (approximately 2 gallons) of water for
plants in situ. For pot and container plants, use ½ teaspoon
in 2 gallons. Use liquid Humate every two weeks during the growing
season, with or without fertiliser. For seedlings, use at half strength.
Humate Iron Chelate (Soluble Powder - 10%
Fe)
Humate Iron Chelate is used for correcting deficiencies of iron
in soils and composts. It is suitable for most types of plants including
turf, ornamentals, fruit and vegetables. It is completely chelated
for foliar and soil applications and is effective across a broad
range of soil and climatic conditions working well in both acid
and alkaline soils. Recent work has shown it to be as stable in
low and high pH solutions (pH 4 to pH 10) as 6% Fe-EDDHA. It is
effective for greening-up turf and ornamentals. It is based on Humate
which is reacted with iron and spray dried. The analysis is total
nitrogen 6.0%, soluble potash 2.0% and chelated iron 10.0%.
Usage rates are as follows:-
For watering containerised plants: Dissolve 2½g of chelate
(approx ½ level teaspoonful) in 10 litres (2 gallons) of
water.
For plants in situ: Use at 3 times above strength.
Watering frequency is as required to correct chlorosis. We have
had some very good feedback from people using this chelate for acid
loving plants and trees such as rhododendrons, azaleas, magnolias
and heathers.
Fulvic Acid
Humic substances are mixtures of both fulvic and humic acids. Our
Humate humic acid contains a relatively high proportion of fulvic
acid. It is between about 20% and 25%. Most leonardite sourced humic
substances contain usually less than 2% fulvic acid.
The fulvic acid component is soluble in all pH conditions. Humic
acid is completely soluble in only alkali conditions. The higher
the fulvic acid:humic acid ratio, the more reactive is the humic
substance. The molecule of fulvic acid is usually looked upon as
the monomer, whereas that of humic acid is treated as a polymer.
As the monomer, the fulvic acid is relatively small and can enter
the plant, attached to some nutrient ion, much more readily than
the much larger humic acid molecule. Fulvic acid is said to be the
"work horse" amongst humic substances.
Fulvic acid has a very high cation exchange capacity (CEC) and will
increase the CEC of growing media.
We have available a fulvic acid material that is 75% fulvic acid
that can be used to improve the growth of plants by improving the
take-up of nutrients.
It can be used as a foliar treatment where, ideally, it should be
added to solutions of foliar feeds. It will aid photosynthesis.
It can also be applied to soils and other growing media to improve
the take-up of nutrients. It will improve the texture of soils.
The fulvic acid powder has a tendency to take in moisture and become
sticky. We have therefore packed it into small soluble capsules.
One capsule of approximately 1g should be added to each litre of
liquid feed that is used for foliar treatment. Use 2 capsules per
litre of water or feed solution for application to growing media.

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