一、桐粮间作的意义黄河下游由于冲积、沉积、广布着沙质土壤的豫东和鲁西南地区,是泡桐的主要产区,这里的贫下中农以桐树与农作物间种,已有较久的历史,并在长期的实践中积累了培育桐树的丰富经验。桐粮间作,由于农地耕翻施肥,有利于泡桐旺盛生长,缩短成材年限,在较短的10年左右即成大材。不仅从桐粮间作的农地上获得大量木材、烧柴、桐叶饲料、肥料。特别是桐树形成的疏林可以改善农田小气候,能够起到护农保产,以林促农,以林促牧的 First, the meaning of Tong grain intercropping The downstream of the Yellow River due to alluvial, sedimentary, widely distributed in the Yudong and Southwestern regions of sandy soils, is the main producing areas of Paulownia, where the poor and middle-aged to Tung and crop interplanting, there are more Long history, and in the long-term practice has accumulated rich experience in cultivating Tung. Tong grain intercropping, due to plowing and fertilizing farmland, is conducive to vigorous growth of Paulownia, shortening the useful life, in a short period of about 10 years into an overgrown. Not only from Tong grain intercropping farmland to get a lot of wood, firewood, Tong leaf feed, fertilizer. In particular, the formation of Tung woods can improve the microclimate of farmland, can play a protective farm, with forest to promote agriculture, forest to promote animal husbandry