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For both beginner and experienced gardeners, a good nutrient rich soil is one of the most important factors for gardening success. Well – this applies when you are using the best soil with all nutrients to be readily available to the plants. You can watch my video on Universal Potting Soil by checking a link in the video description and also from a card linked at top right corner of this video after this video.
Well, Back to the topic: What if you have not prepared the best potting soil for your plants and your plants are suffering from malnutrition and deficiencies. Also even if you already have the best soil available to your plants, what about supplementing it with nutrients, I Mean Fertilizing your plants for the best growth and development is very important.
Whether to practice organic gardening methods or to rely upon chemical products is a major decision in soil management. Weighing the advantages and disadvantages of natural and chemical fertilizers will help you decide which method is appropriate for your garden.
There are many advantages as well as disadvantages of both Organic and Inorganic Fertilizers. We will not go into the details of these right now. Will try to discuss these in another detailed video. For now, based on some research articles on Mixed Organic and Inorganic Fertilizer preparation, to utilize the benefits of both and considering the NPK proportions and micronutrients or trace element proportions, we will try to formulate a preparation to fertilize your plants and use this mix as an all-purpose universal fertilizer powder to fertilize your plants on a monthly or fortnightly basis. If you want to know What is NPK and some basics, there s my separate video on NPK fertilzers – you can check the link in description or from a video card link at top right corner.
The basic idea is to make a balanced general purpose or universal fertilizer. Like you get a general purpose NPK crystals of 19-19-19 or 12-12-12 proportions and so on – indicating Nitrogen 19 percent, Phosphorus 19 percent and Potash 19 percent and things like that. If you are an expert you can do more calculations and research and also consider your purpose or even make a plant specific combinations by varying these proportion. For this you should know the approximate concentration of NPK in each of these organic stuff you are adding. Also there are Fertilizer mixing apps on google playstore.
Well, Now lets look into the ingredients, we will be using. And if you do not have some of these, do not worry, you can use whatever is available based on the content of NPK in each. For this you can check the NPK percentages and then total it in the end to know the actual or approximate NPK value of your final fertilizer mixture. Also One more concept to keep in mind in Unlike chemical fertilisers, the ‘natural’ fertilisers tend to dissolve slowly and thereby release their nutrients – that’s slow releasing and chemical NPKs are readily available. This way we are balancing the nutrient availability and avoiding the adverse effects of chemical fertilzers by using a lesser amount of inorganic fertilizers.
N(Nitrogen 2.0% to 5.0%), P(Phosphorus 0.5% to 1.0%), K(Potassium 1.0% to 2.0%).
Anyways, We will try to make an approximate mix with approximate proportions and use this on our plants.
If you are a Pure Organic fertilizer lover, then you can prepare “organic only” fertilizer for your plants and offer extra dose to your plants. But if you want to prepare a balanced universal mix – that is inorganic + organic mixture, you need to offer this in lesser quantity to your plants – like half to one tablespoon depending on the size of your pot and after tilling or raking the top soil and apply around the plant – not directly on roots. You can apply every 15 days to 1 month – by carefully evaluating your results and then adjust the dosage accordingly.
Well, now we will mix all these with approximate weight of each of these in gms to make this fertilizer mix of organic + inorganic – a total of upto 10 kilograms.
And one more important point from storage point of view: you might feel some moisture in this mixture due to some moist ingredients. You can either use completely dry ingredients before mixing or you can dry this mixture in sunlight and then store in air tight containers. Remember to mix the ingredients thoroughly well for best results.
Now we will roughly total up the NPK value for this mix. We will try to total up based on 1000 gms of each of the ingredients: have a look at this equation in the table:
Ingredient (per 1000g) |
N |
P |
K |
Urea (200g) |
9.2 |
0 |
0 |
NPK(19-19-19) -500g |
9.5 |
9.5 |
9.5 |
DAP (18-46-0) -500g |
9 |
23 |
0 |
Cow Dung (3-2-1)-2000g |
6 |
4 |
2 |
Vermicompost -2000g |
3.5 |
1.5 |
2 |
Bone Meal -1000g |
3.5 |
18 |
0 |
Neem, Mustard etc |
9 |
1.5 |
3 |
TOTAL |
49 |
57 |
17 |
So the Approx Total NPK value of this Mix is 49-57-17. If you want to reduce the Nitrogen value, you can skip adding Urea and things like that. So the Take home message is this – “This Mix is Powerful mix of organic and inorganic fertilizer balancing the advantages and disadvantages of chemical fertilzers and secondly it saves your time and energy and you offer everything at once to your plants.”
So, there we have it folks, that was an attempt to make our own universal fertilizer mix for our home garden plants.