Ecology Efficacy Of Bio-fertilizer Researching In Application Of The Forestry Seedling Breeding

Now people attach importance to environment protecting increasingly and ecological consciousness gradually. Bio-fertilizer becomes one of important manures bit by bit and will exert grand action in future agriculture and forest. Because bio-fertilizer is a sort of reproducible manures with organic offal, which principle is biological nitrogen fixation and beneficial microbes improving fertility status.Ecological efficacy of bio-fertilizer researching in application of the forest seedling breeding is the emphases in this paper.Survive rate:(1)bio-fertilizer can improve seedling growth effectively. The seedling vegetated better with high fertilizing scalar. From July to September, the supreme net increasing quantity of seedling height and ground diameter are 4.87,0.026cm(Pinus koraiensis ). 18.72, 0.257cm(Larix gmelini ), 28.21 ,0.298cm(Hippophase rhamnoide ) And the supreme net increasing quantity of Hippophase rhamnoide's leaf length and width arc 1.73, 0.34cm. The supreme net increasing quantity appeared in treatment 4(60g/m2) totally. And with the dosage of fertilizer enhanced, the biomass of every species enhanced too.(2)Bio-fertilizer can observably improve the dynamic balance of each microbe population quantity in soil. The quantity of effective live elements in bio-fertilizer increased after the bio-fertilizer fertilized to soil. From June to July, the each microbe population quantity augments about 10 times, which made each microbe action bring into play.(3)bio-fertilizer can increased soil fertility meliorated the soil fertility circumstance. Bio-fertilizer can observably relax the reducing of various nutritive materials due to seedling growth. Some large elements for seedling growth such as organic and available nitrogen, phosphorus, potassium and so on get effectively in the seedling growth season. And at the same time, microbe's activity can release tardive nitrogen, phosphorus, potassium in soil which can improve micro-ecological environment.(4)in the process of bio-fertilizer manufacturing and fertilized to soil, some metabolic products of microbes are accumulating in soil. These metabolic productscither are provided with fixed action for seedling resisting and preventing disease, or have specified function of irritating seedling growth.On the basis of internal, especially in Heilongjiang Province bio-fertilizer researching in agriculture, author considers it should have the same good efficacy in forest. The research of bio-fertilizer application in forest seedling breading should accelerate application in forest productive practice mostly. This paper will provide fixed scientific basis for wide application on forest manufacture.