Rapid growth yang originates from middle forest series rapid growth Yang. The fine characteristic such as high quality ,disease-resistant, heat-resisting ,resist cold, wide
adaptability, etc. make itself become growing fast poplar seeds in the whole country
. Planting seedlings in that year, became the woods in that year , it was the vanguard seeds of hurricane lamp , fixed the sand, conserving water and soil. The shoot is 5 meters high in one year, the tree is 13.5 meters high in five years, 25
cm of foot-paths of chest. The timber is suitable for papermaking, plywood, shaving board, hygiene chopsticks, support, match,
toothpick, etc.. The leaf is the fine fodder.
The rapid growth yang grows extremely fast, in that year shoot is the 5-6 meters high, chest foot-paths 3
cm , it can reach 8-9 meters high in two year, reach more than 10 meters high in three year, chest foot-path 15
cm . And in 5 years height of tree can reach 14 m , chest foot-path 22-26 cm, timber accumulate more than 0.5 cube. Its growth amount improve 15%-20% compared with italy 72 , 46 , 69
Yang, etc., afforest density would adopt 2m*5m; 3 m *3 m; 2m*4 m etc. It can be planted as super short time timber, each
hectare annually timber accumulate can be up to 60 -70
steres. If afforest 5000 hectares, it can satisfy raw materials demands for producing 100,000 tons of paper pulps factory per year . Time of becoming timber is short , it offer sufficient raw material for papermaking , the plywood, shaving board, hygiene chopsticks, support , industry of packing etc. It is a short, adaptable and fast good project of solving the industrial material. Its material fine and smooth, compared with 46 Yang basic density raise 0.008 - 0.03 grams .
Rapid growth Yang accommodate widely . It grow well in north region of huaihe especially suit the Northwest, North China, the Northeast, three northern areas of China . In sand ground, clay land ,salt alkali land it still grow normally. It was once lived minus 38 degree and half month 46 degree high temperature
etc, stand the different tests in extreme temperature. Its root system is developed, the branch is strong, the strong wind of 11 level fails to break it .
Rapid growth Yang have good environmental protection effects . It hero's one, not produce fly wadding ,is environmental protection's ideal poplar seeds, it suit for afforesting both sides of railway , highway . Its root is dense, it is tall to be done, the leaf is big, it is the ideal seeds which create the good ecological environment.
Rapid growth Yang's leaf is plump , neither astringent nor bitter, protein content more than 12.97 13.56% , inferior to alfalfa and locust tree leaf and superior to wheat straw, wild hay, Sweet potato and maize straw, fat content 2.31-3.35% , calcium content also high. The leaf includes 4.16 - 4.81% of amino acid in August, , other 7 kinds of amino acid, especially lysine content exceed various kinds of pole fodder of straw obviously, There is relatively high nutritive value .
|
