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OGM : de quoi s’agit-il? Peuvent-ils être consommés en toute sécurité? Qu’est-ce que l’agriculture biologique? Comment les animaux comme les poulets ou les bovins sont-ils élevés?

snapAG offre aux élèves et aux étudiants des ressources sur des sujets d’actualité liés à l’industrie agricole, comme les produits biologiques, les biotechnologies, les OGM, l’élevage, et plus encore. 

Explorez les tendances de l’agriculture au Canada en parcourant les rubriques ci-dessous.

Fertilizer Use

Fertilizer Use

Improved farming practices and the use of fertilizers have helped feed the world while saving habitats that would otherwise be needed for growing food.

If the soil already contains nutrients, why add more?

As plants grow, they draw nutrients from the soil as they take up water. When crops are harvested, nutrients, now contained in the plant, are removed from the soil. The greater the crop yield, the greater the need for more nutrients to be added back into the soil so that the next crop can grow to its full potential.

If nutrients aren’t added back to the soil (whether organic or synthetic), then the soil slowly becomes less fertile. Consequently, crops are less able to compete with weeds and resist plant diseases, insects and drought and that means less food is grown.

The more the better – or not?

More does not mean better! Nutrient application is all about balance. If too many nutrients are added to a crop then there is a risk that crops won’t consume them quickly enough and if there is too much rain, the nutrients can run into the water ways. If there are too few nutrients added, the plants won’t grow to their full potential, resulting in less food being produced.

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