桐粮间作是一种新型的人工立体农业生产结构,是农田林网的另一种好形式,也是宜桐区农民致富的有效措施之一,但是,人们对桐粮间作的认识,有些不一致。一种认为桐树胁地,叶罩苗不旺,根吸地不肥,影响粮食产量,反对桐粮间作;另一种则认为桐粮间作构成的农田林网,胁地一条线,增产一大片,它能调节田间小气候,降低风速,减轻自然灾害,增加空气湿度等,为大面积粮食增产创造有利条件。同时,在单位面积上又增加一项木材收 Tong grain intercropping is a new type of artificial three-dimensional agricultural production structure is another good form of farmland forest network, but also one of the effective measures for farmers to get rich in Yi Tong District. However, people’s understanding of Tong-tung grain intercropping is somewhat inconsistent. One species of tung tree is threatened, leaf cover seedlings are not prosperous, and root does not fertilize, affecting grain yield, and against tung grain intercropping; the other is that tung grain intercropping farmland forest net, threatening a line, increasing a Large, it can regulate the field microclimate, reduce wind speed, reduce natural disasters, increase air humidity, and create favorable conditions for large-area grain production. At the same time, another unit of timber was added