Natural sources of calcium in apple trees:

The apple tree is a fruit tree grown in Mexico. It obtained the twentieth place in world production according to the closing of 2016 this fruit presented a total production of 716930 tons with a value of $4.66 billion pesos in an area harvested of 54248 hectares of the national volume collected Durango and Puebla with 5.9% and 5.2% followed at a distance by Chihuahua the latter contributed 81.8% of production the most important municipalities are Bachiniva Namiquipa Guerrero and Cuauhtémoc: they have an established area of 27264 hectares of which 24543 are in production and 2721 in development (SIAP- SAGARPA 2017).