The Brazilian nut is particularly well known in the Brazilian state of Pará, where it is called castanha-do-Pará (nut from Pará) and is cultivated as one of the main nuts sold in the world. Brazil's nut trees need well-draining soil rich in well-rotted organic matter. Think about your natural environment, where leaves, branches, and other plant matter fall to the forest floor and decay over time. It is preferable that the soil has a pH level between 5.5 and 6.5.The trees will grow in sandy clay or clay soils as long as they are well drained.
In its natural habitat, the tree grows in rich and deep alluvial soils, well drained, rich in organic matter and on elevated land. It can take 9 to 10 months from the time Brazil nuts are harvested until they are finally processed. For transport, the harvested Brazil nuts are placed in boxes to store up to about 20 kg of nuts. You may not have thought about it, but Brazil nuts are actually very important, adding tens of millions to South American economies every year.
The true fruit of the Brazilian walnut tree is a large seed pond that looks like a coconut and can weigh up to five pounds (2 kg). Brazil nuts are eaten raw and are a good source of magnesium, phosphorus, manganese, copper, thiamine and vitamin E, and are a rich source of selenium, important antioxidant benefits for the immune system and heart health. Symptoms: circular perforations in the shells of the nuts where the adult has emerged; the adult is a small beetle between 3 and 5 mm long that is dark brown speckled and the larvae are small yellow-white larvae. Good yields of about 300 kg of nuts with shells have been recorded under favorable conditions for some trees.
Brazil's nut trees are genetically programmed to be large, so regardless of the size of the containment pruning, they will continue to need a lot of space. Growing walnut trees from Brazil is difficult, even if you live in a walnut growing zone in Brazil, but it's also a very rewarding task. A substantial dry season is necessary to induce flower production, and nuts grow naturally only in regions with a dry season of 3 to 5 months. Soaking allows the outer shell of the seed to soften to peel it and then allows the nut to sprout.
A complex balance is needed between Brazil's walnut tree, a species of bees, orchids and a certain type of rodent. Successful plantations have discovered the auxiliary species they want to interplant with walnut trees in Brazil. Management: The main method for controlling the cacao weevil pest is through the use of fumigants on stored Brazil nuts. Along with rubber, which can be harvested without damaging trees, nuts from Brazil constitute a low-impact source of livelihood that lasts all year round, called “extractivism”.
Brazil nuts have a high nutritional value, and that adds to another reason why Brazil nuts are so expensive.