球肥深施效果很好,但是工本较高,工效低,经常出现季节与劳力矛盾,造成稻苗不能及时追肥,而且常常出现漏施,使稻苗生长不均匀,更不能摆脱“三弯腰”的笨重劳动。1978年永春县东平公社下林4队队长林成平同志,在实践中大胆摸索与总结,提出了化肥拉沟深施法,并大面积重复对比试验,效果极为明显。三个人一天能施3—5亩,比球肥深施工效提高5倍,无烧苗,生长平衡。县社组织验收,拉沟深施 Fertilizer deep application of good results, but the higher cost, low efficiency, often appear the contradiction between the season and labor, resulting in rice seedlings can not be timely fertilizer, and often leak facilities, so that rice seedlings grow unevenly, but can not get rid of “three bend ”The heavy labor. Comrade Lin Chengping, the team leader of the 4 teams in the lower reaches of the Dongping Commune in Yongchun County in 1978, boldly explored and concluded in practice and put forward a deep application of chemical fertilizers and dilatations and large-area repeated comparative tests with extremely obvious results. Three people can apply 3-5 acres a day, than the ball deep construction efficiency increased by 5 times, no burning seedlings, growth and balance. County agency acceptance, deep groove facilities