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在田间栽植桐树是防止风沙、阻挡风口的一项措施,后来发展成为桐粮间作。目前,我县桐粮间作面积已达29余万亩。但是,这种在农田中栽植桐树的桐粮间作方式,在广大农民和乡村干部中的看法是不一的。这是因为桐树在4月中旬发芽生长时,正值小麦孕穗期,4月下旬桐树枝叶遮光和根系收水量增大开始影响小麦时,正是小麦抽穗期,其间经历开花、结实、灌浆,直至6月上旬小麦成熟为止。时间虽不长,仅一个多月,却是小麦产量形成最重要的时期,
Tung planted in the field is to prevent sand, blocking the tuyere of a measure, and later developed into Tong grain intercropping. At present, our county Tong grain intercropping area has reached more than 29 acres. However, this kind of intercropping method of planting tung tree in farmland has many different opinions among peasants and rural cadres. This is because the Tung tree germinates and grows in the middle of April when it is at the booting stage of wheat and the shade of branches and leaves at the end of April and the increase of root water harvesting begin to affect wheat. It is wheat heading stage, during which it undergoes flowering, fruiting and grouting Until the wheat matures in early June. Although time is not long, only more than a month, but it is the most important period of wheat yield formation,