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我县位于四川盆地北部丘陵地带,桤木树分布广,当地农户常年有用桤木叶作绿肥搭田的习惯,每年搭田面积在10—12万亩,这对缓解近年来化肥紧缺的矛盾及水稻增产起了一定的作用。我们1989年在伏虎镇的对比试验结果表明,用桤木叶搭田后,土壤中养分的有效性增加,秧苗移栽后返青成活快,分蘖多。移栽后第12天调查,比对照的叶片增加0.36片,单株分蘖多0.53个,白根
My county is located in the northern hilly areas of Sichuan Basin, Alder trees are widely distributed, local perennial useful alder green leaves for the practice of manholes, each with an area of 10-12 mu, which alleviate the contradiction between fertilizer shortage in recent years and Increased production of rice played a role. Our comparison test in Fuhu Town in 1989 showed that the availability of nutrients in the soil increased after the plants were rehosted with Alnus japonica, and the seedlings returned to green faster after transplanting with more tillers. On the 12th day after transplanting, the number of leaves increased by 0.36 compared with the control, 0.53 more tillers per plant,