一九七三年以来,我县学习推广了兴和县山药丰产坑的经验,促进了山药增产。但是,随着丰产坑山药种植面积的逐年扩大,需要劳力也越来越多。一九七五年全县种丰产坑山药十二万亩,出动七万多人,加班加点整整干了三十多天。由于春耕期间农活繁忙,劳力紧张,挖丰产坑和播种其他作物、进行农田 Since 1973, my county learned to promote the experience of Xinghuo Yam’s high yield pit and promoted the yam production. However, as the planting area of ​​high-yielding pit yam has been expanding year by year, more and more labor force is required. In 1975, a total of 120000 mu of mountain yam was planted and produced in the county. More than 70,000 people were dispatched to work and more than thirty days worked overtime. Due to the heavy agricultural activities during the spring plowing, labor shortage, digging bumper wells and sowing other crops for farmland