Method of nursery tree hydroponics and fertilizer for...

C - Chemistry – Metallurgy – 05 – G

Patent

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C05G 1/00 (2006.01) A01G 9/02 (2006.01) A01G 31/00 (2006.01) C05G 3/00 (2006.01)

Patent

CA 2216735

A method of nursery tree hydroponics which comprises filling a raising seedling pot which is provided with passing parts on the side face and the bottom and capable of undergoing fracture with a medium comprising a mixture of smoked charcoal or rice hull with a water holding material, immersing the pot in a culture solution containing 1,000 to 1,800 ppm of a nitrogen component, 600 to 1,000 ppm of a phosphoric acid component, 1,500 to 3,500 ppm of a potassium component, 300 to 500 ppm of a magnesium component and 900 to 1,400 ppm of a lime component, and thus raising the nursery tree with this culture solution. Thus the growth of the nursery tree is favorably affected and remarkably accelerated even after the transplantation of the nursery tree into soil. Moreover, it is possible to thus establish advantageous effects such that the tree raised by this method has false annual rings and is expected to be useful as a wooden board material with excellent density and color. Thus the method is suitable particularly for the cultivation of nursery trees for forestation.

La présente invention concerne un procédé de culture hydroponique d'arbres de pépinière. Ce procédé consiste à remplir d'un milieu de charbon de bois fumé ou de balle de riz mélangé à une matière retenant l'eau, un pot de semis en germination, lequel pot comporte des faces latérales pourvues de passages et un fond susceptible de se fracturer. Le procédé consiste ensuite à plonger le pot dans une solution de culture dont les composants sont l'azote à raison de 1000 à 1800 ppm, l'acide phosphorique à raison de 600 à 1000 ppm, le potassium à raison de 1500 à 3500 ppm, le magnésium à raison de 300 à 500 ppm, et de la craie à raison de 900 à 1400 ppm, et ainsi à faire pousser l'arbre de pépinière au moyen de cette solution de culture. Ce procédé favorise et accélère la croissance de l'arbre de pépinière, même après transplantation de l'arbre de pépinière dans le sol. En outre, ce procédé donne des résultats avantageux, l'arbre cultivé de cette façon présentant notamment de faux cercles de croissance, et donnant normalement un bois d'oeuvre aux bonnes qualités de densité et de teinte. Ce procédé convient particulièrement à la culture d'arbres de pépinière destinés au reboisement.

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