By Raul Mannise
The current agro-industrial production system is in crisis, it is an attack against biodiversity, soils and their fertility and fresh water on the planet.
It is expensive and often inefficient, since it creates stronger pests and weeds and the prevailing monoculture is easily affected by these or by climatic problems.
The use and abuse of toxins and petroleum derivatives, to control weeds, insects and fertilize not only puts the ecosystem in check but is costly and only creates more pests, more resistant weeds and soils that are more eroded and dependent on the external supply of nutrients. . The unusual is that all these problems were already solved in agriculture hundreds of years ago, in different parts of the world, from the rice fields of China, where fish were used and these kept insects at bay apart from fertilizing the crop and providing more food, Mexico where the Aztecs cultivated in the middle of a lake through their ingenious chinampas, true floating gardens and their understanding of the importance of polycultures.
To this day, it is common to see Mexico and other countries in America the combination of corn, legume (beans, beans, beans) and squash (squash), corn grows rapidly and serves as a support for legumes, which in turn deliver nitrogen to the Corn since all legumes are good at fixing nitrogen in the earth, and squash covers the ground preventing the development of weeds, this system is known as Milpa.
The Incas and their magnificent terraces where they cultivated potatoes at thousands of meters of altitude, also used natural and renewable fertilizers such as guano and the rest of the fish and even developed sophisticated tools such as manual plows and an irrigation system for kilometers, carving aqueducts in the area. stone and carrying the water from the mountain to the coast.
And the same is repeated in Africa and many other places there are examples of sustainable agricultural models using biodiversity to an advantage and producing healthy food for all.
Faced with the disaster of modern agriculture, it would be good to start looking a little back and recover that ancestral knowledge that allowed man to produce food for millennia in a natural way.
According to expert estimates, these ancestral systems would be more profitable and with higher yields than the current barbarities to which farmers are subjected.
Luckily today there are still many farmers who preserve this knowledge and apply it and they can not only teach us the secrets of these techniques but they are guardians of a large number of seeds and that biodiversity can guarantee human subsistence in the future.