I used humic acid at 0.044 g/kg soil in my pot experiment. But finally, I have to recommend kg/ha. Each pot's soil weight was 11 kg.
What is the solution?
If you simply want to convert your application rate to a general recommendation without precise plot distribution details:
The bulk density of average mineral soil is 1.25 g/cm3. Or 1250 kg/M3
Soil depth is generally accepted at 20 cm for fertilizer application.
1 Ha=10000 m2
Then 20 cm deep 1 ha soil = 20cm X 10000 m3=0.20 X 10000=2000 m3
In 1 Ha =1250 X 2000 Kg soil=2500000 kg soil.
Now you use humic acid 0.044 gram per kg then in I Ha=0.044X 2500000 Gram for I Ha.=110000 gram in 1 ha=110 kg per Ha
If you take 15 cm then this figure will reduced.
To convert the dose of humic acid from grams per kilogram of soil (g/kg) to kilograms per hectare (kg/ha), follow these steps:
Firstly calculate the Total Amount Used per Pot:You applied 0.044 g/kg of soil to pots with 11 kg of soil each. The total amount of humic acid per pot is: 0.044g/kg×11kg=0.484g
Secondly Convert to Kilograms per Pot:Convert 0.484 grams to kilograms:
0.484g=0.000484kg
Third Estimate the Dose per Hectare:To scale up to hectares, you need to estimate the number of pots per hectare. Since 1 hectare is 10,000 m², the conversion involves multiplying the amount per pot by the number of pots per hectare.
For a simplified estimate, if 1 kg of soil roughly corresponds to 1 m², the dose per hectare can be approximated by:
Humic acid dose in kg/ha=0.000484kg/pot×(number of pots per hectare).
To convert a dose of humic acid from grams per kilogram (g/kg) to kilograms per hectare (kg/ha), you'll need to follow a few steps, taking into account the application rate and the soil or crop area you’re working with. Here's a general guide on how to make this conversion:
Steps for Conversion
At first, calculate the amount of soil in one ha of land.
so,
Area of one ha land is= 10000 m2, and the rooting depth is 15cm
Now, the volume of one ha land is = 10000 m2× 15 cm
=100000000 cm2 ×15 cm
=1500000000 cm3
We know that bulk density of soil is 1.5g/cm3
i.e. 1 cm3 soil contain 1.5g soil.
So, in 1500000000 cm3 soil contain = 1500000000×1.5 g/cm3
=2250000000 g soil
=2250000 kg soil
=2.25 million kg soil
So, the amount of soil in one ha land is 2250000 kg soil (considering rooting depth 15cm)
As you provided,
1 kg soil required 0.044g humic acid
1 kg soil required 0.000044 kg humic acid
11 kg/per pot soil required 0.000484 kg humic acid
2250000 kg soil required 99 kg humic acid/per ha
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