Good question for future planning for environment.

Your research professor is saying right because the Chemical fertilizer is non-renewable. They damage the plants and soil.Long-term use of chemical fertilizer changes the pH of the soil. Danger for our fertilization and disturbed all the ecosystem. Chemical fertilizers destroy the friability of soil. Chemical fertilizers affect micro-organisms living in the soil. Chemical fertilizers leach away into our ground water without fully benefiting the plant. Chemical fertilizers encourage plant disease.

Synthetically manufactured urea is an organic compound which is not considered an 'Organic' fertilizer. Urea is naturally produced by a lot of animals as a metabolic byproduct and such natural urea is an approved Organic fertilizer. This is the urea farmers can buy as 'fertilizer.

Chemical Fertilizers N,P & K is not an organic fertilizers.

Organic fertilizers are fertilizers derived from animal matter, animal excreta (manure), human excreta, and vegetable matter (e.g. compost and crop residues). Naturally occurring organic fertilizers include animal wastes from meat processing, peat, manure, slurry, and guano.

You can use Ash for K

@ Mohammad, you may use biosynthesized nano-P and K, which are organic as it is naturally encapsulated by mother protein.

Dear Baboo with my respects you are exaggerating by blaming chemical fertilizers for every thing .If these fertilizers added reasonably and rationally and according to crop needs there is no problem .Although,Organic fertilizers natural sources and should be used after decomposition and should be clean ,they can't subsidies all crop needs and should be enriched by some Chemical fertilizers .As for k you can use ash and horns .For P you can use bones.

Ali, I cant use anything that is animal based. I have identified this issue please look at my other question on my page. Id be grateful if you could answer @nooruldeen Ali

Dear Nooruldeen Ali,This is the answer of question, Mr Md. Alshamary is asking the urea is an Organic fertilizer. I know very well that this very hard to replace chemical fertilizers by other organic /bio fertilizers because nutrient inputs through organic /bio fertilization could hardly completely replace the use of chemical synthesis fertilizers, due to the biological nature its effectiveness is subject to the control of environmental factors that determine the activity of bio fertilizing microorganisms, however they are an important contribution to the equilibrium and homeostasis of availability of nutrients. So a plausible strategy is the integrated management of chemical fertilization in addition to bio fertilizers, under conditions where they work better. Also optimize the use of chemical fertilization, through the use of benefactors, in order to make it more efficient and reduce the amount needed to apply, avoiding losses.

Thanks dear Prem for your nice and scientific reply .I recommend integrated bio-organic-mineral fertilizer applications.

As for my Dear Mohammed you asked me for organic source for K and P .You can use bio fertilizers such as P Solubilizing bacteria and Mychorizha for P and K solubilizing bacteria .

A good organic source of P is mined rock phosphate which is not acidified and certified as being an organic input. Organic certifiable N is in the form of Chilean Nitrate. There are also mineral organic K rock powders and as far as plant sources the Mexican sunflower Tithonia diversifolia is very high for its K content.

Hi,

the question is thought provoking and the answers by experts are commendable. I personally feel, cost efficiency is what farmers look to while choosing a fertilizer. Prof. Tarafdar's suggestion is exciting. I suggest you to give it a try.

Navnit Kumar Ramamoorthy Can you please share it with me. I looked it up but had no results coming

Hi Mohammad Alshamary, as an environmental microbiologist thinking that you need high efficiency for your production, the most recommended are the mycorrhizae that will solve that problem and avoid many others, but you can also use compost of good condition, vermicompost and even increase the amount of worms in the I usually advise well with someone who knows about earthworms, if you're interested, look for Patrick Lavelle.