当前世界农业科技领域正在酝酿着一系列重大变革,主要有7种趋向。1由平面式向立体式发展为了在有限的土地上获得大量农产品,巧妙利用各类农作物在生长过程中的空间差和时间差,进行错落组合,综合搭配,构成多层次、多功能、多途径的高效生产系统。 At present, a series of major changes are brewing in the field of agricultural science and technology in the world. There are mainly seven kinds of trends. 1 from the flat to the three-dimensional development In order to obtain a large amount of agricultural land on limited land, the clever use of various types of crops in the growth process of space and time difference, the combination of the patchwork, mix and match, constitute a multi-level, multi-functional, multi- Efficient production system.