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On the model of intensive agriculture, individuals also wanted to take advantage of the rapid results of chemical fertilizers in gardens. But too much to want to produce and too quickly do not we risk to obtain unwanted effects? An overview of the potential dangers of chemical fertilizers for the environment and health... But first, why do we use chemicals?

Chemical fertilizers for gardens: the dangers

Chemical fertilizers for gardens: the dangers

What are chemical fertilizers made of?

Plants need many elements to flourish: nitrogen to produce a beautiful green foliage, phosphorus which is a fortifying, potash for better flowering, magnesium and iron and many other things like calcium and sulfur. The earth does not always have enough of these elements, especially in gardens with small areas where many different plants come together.

Chemical fertilizers are therefore sensible avoid deficiencies thanks to a regular supply of either a single element or a mixture comprising in general three basic elements in variable quantity and called NPK fertilizer (Nitrogen whose symbol is N, the phosphorus represented by the letter P and the Potassium with symbol K).

The dangers of garden chemicals are real in terms of the quality of the environment, biodiversity and human health. The first consequence of the use of chemical fertilizers in the garden is the impoverishment of the soil. This phenomenon is due to the direct assimilation of the fertilizer by the plants which causes the disappearance of the microbial life in the ground.

Another problem, more serious, is the pollution of rivers, groundwater, vegetables consumed directly without prior washing and health consequences. Indeed, the ease of use of these fertilizers often results in over-consumption throughout the year and overdoses on the part of users.

As a result, some elements turn out to be real poisons because the substances not assimilated by the plants are carried away by the rains and are found in the rivers. Pollution is therefore inevitable, not to mention the proliferation of green algae.

So, why use chemical fertilizers?

The craze for chemical fertilizers in gardens can be summed up in three words: price, ease, efficiency.

All you have to do is go to a big gardening sign or specialized sites on the Internet to find at a very reasonable price a whole range of chemical fertilizers. These additions will initially boost the growth of plants and eradicate pests and insects. No need to worry about the composition of the soil, to use tedious natural means (mulching, compost, manure, nettle manure, wood ash...) or to let the earth rest so that it regenerates. To adapt to the demands of gardeners and facilitate their task, chemical fertilizers can be found in several forms: liquid, stick, granules... which does not always allow to control the dosage.

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