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近几年来我国开展了群众性的木本粮油树种培植运动。这些树种是一年种、多年收,适应广、抗逆性强,并不十分苛求一定的环境条件,可避免与一年生作物争地的矛盾。又由于种类多,只要适当搭配,又有不与农作物轻营管理争劳力的特点,这样就为大发展争得了必要的条件。为扩种这些珍贵树种,除做到合理选择土壤、适地适种外,选用良种是首要的工作。选育良种是发展木本粮油生
In recent years, our country carried out a mass cultivation of woody oil tree species. These species are year species, collected for many years, widely adapted and strong resistance, not very demanding of certain environmental conditions, to avoid conflict with the annual crop dispute. And because of the variety, as long as the appropriate mix of, there are not competing with the crop light management of labor characteristics, thus gaining the necessary conditions for the great development. In order to expand these precious species, in addition to the rational choice of soil, suitable for species, the selection of varieties is the first job. Breeding varieties is the development of woody grain oil