Has the farming industry advanced in the use of chemicals like fertalizers?
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Answer:
Yes! The farming industry has advanced in the use of chemicals. Our ancestors did not have the advancement of technology to utilize fertilizers as we do at present, they used to mulch their fields with products that had an array of by-products including the fertilizers that they required. For e.g. the application of ashes for micro-nutrients that are needed in trace amounts for adequate plant growth. In addition they would also make compost heaps where soil organisms break down organic material to release nutrients. They would then estimate the amount that needed to be added to the field/garden area or plant. In present times all we do is go to the farm store and order the different nutrients that the plant(s) require base on the analytical findings of the area/plant requiring fertilizer, along with the directions for application.
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Other answers
Right from 1960 onwards most of the countries are using chemical fertilizers to boost yield and to replenish the low nutrient status of soils. Urea is most widely used . Further developments by way of slow release fertilizers , Integrated Nutrient Management (INM), Use of bio-fertilizers like phosphorous solubilizing bacyeria etc improved the situation. But now more stress is given on Organic farming where chemical fertilizers and conventional pesticides are omitted and natural and ecologically sustainable means are used. I think nano technology could be used for nutrient management in future rather than mere Genetic manipulation.
Sairaj
yes. the main advancement in fertilizers is efficiency and environmental aspects. Research has shown us what the plants need, and how much is too much. Research has also shown us how to synthesize fertilizers more efficiently.
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