桂林地区机械深施化肥技术推广初见成效桂林地区农机部门把机械化肥深施技术作为农机化科技兴农的重点项目实施，取得明显的经济效益和社会效益。１９９４年，该地区完成化肥深施面积３．４８万公顷，根据验收测定，机械化肥深施比面施提高肥效３０％，平均每公顷水稻可增... Achievements in technology promotion of mechanical deep fertilizer application in Guilin region The agricultural machinery sector in Guilin implemented the deep application of mechanical fertilizer as a key project to promote agriculture through science and technology of agriculture and achieved obvious economic and social benefits. In 1994, the area of ​​34,800 hectares of deep-seated chemical fertilizer was completed. According to the acceptance test, the mechanical fertilizer applied over 30% higher than the top-grade chemical fertilizer, and the average ...