Recently, many developing countries have paid attention to the so-called organic fertilizers, which allow to grow crops without the use of artificial fertilizers and pesticides. These methods are not only favorable for the environment but also to human health.
Organic gardening is directed at improving the composition of the soil that allows plants to feel comfortable with themselves, getting all the necessary nutrients.
Many people would think that organic fertilizers have appeared recently, but this opinion is wrong. The history of organic fertilizers has several thousand years.
In the ancient scriptures of China, Korea and Japan, which account for more than three thousand years, often referred to organic fertilizer to the soil, and it is the excrement of people, cattle, birds and other animals.
In ancient Egypt were natural fertilizers, which gained thanks the Nile. During its spills, soil is not only gaining moisture, but also received fertilizer in the form of river silt. This was the main source of organic fertilizer, which has contributed to the fertility of the soil such drylands.
Use of river and marsh sludge as fertilizer was also adopted for fertilizing the soil of Mesopotamia.
Ancient Greeks went further in development of agriculture. The Greek botanist Theophrastus and environmentalist from Ayres in his writings points to the need for fertilizers at cultivation of wheat and various vegetables. In the writings of a major landowner and writer we meet have more information about the features of organic fertilizers and methods of their application.
The great scientist and agronomist of the Roman Empire Columella, who lived in the first century BC, belongs to the first in the history of the classification of fertilizers, the treatise “On agriculture”. In this treatise, he has done a great work, summing up all the centuries-old experience of the agricultural empire. Columella fertilizer subdivided into five categories:
According to the opinion of agronomist best fertilizer is manure and it took special place in his book. According to agronomist best fertilizer manure and he thought in his book, he took a special place.
In Western Europe in 11-13 centuries, in the development of feudalism period, we have been actively expanding cultivated areas, sometimes they were of little use for these needs due to bogging, etc. At this time, there was a so-called “manure duty”, which implied that the farmer is obliged to take out a certain amount of manure on the fields of his master.
Gradually, the knowledge and experience that have accumulated over the years, received its output in many of the works of agriculturists. Develops soil science, created specialized Academy of Sciences, universities, dealing with the problems and methods of their solutions.
Unfortunately, many landowners and farmers prefer to use pesticides and other artificial fertilizers, by which they increase the number of products obtained, but in doing so gradually kill the soil, reduces the humus layer, slowly leading to ecological disaster, which is already on the threshold.
Compensate the shortage of mineral nutrients in the soil and improve its can help only natural organic fertilizers. The experience of advanced countries of the landowners shows that the higher the culture of agriculture, the more attention is paid to the use of organic fertilizers of various kinds.