化肥深施是一项经济效果突出的技术编者按：化肥深施是农业部重点推广的四项技术之—，经济和社会效果非常显著。从今年起农业部为了推动这项技术在全国更大范围的应用，除了普遍号召，层层发动之外，还要在１１个示范点和１００个蹲点县重点推广。为了配合这项工作，本刊... Fertilizer application is a prominent economic effect Editor’s note: Deep fertilization is the four key technologies promoted by the Ministry of Agriculture - economic and social effects are significant. Starting from this year, in order to promote a wider application of this technology in the country, the Ministry of Agriculture will focus on promoting the technology in 11 demonstration sites and 100 descendants in addition to the general call and layers of mobilization. In order to cooperate with this work, this article ...