Abstract: According to practice situation of the project of Formula fertilization by soil testing in Jianou and related soil survey results, the main existing problems in farmland soil quality were analyzed, and proposed some countermeasures such as reformation of the main limiting factor, further popularization of formula fertilization by soil testing, vigorous advocate of the potassium and micro-element fertilizer application, reasonable regulation of water and fertilizer, and the adjustment of agriculture structure, reasonable rotation, combine of land utilization with its fertility preservation, etc. in order to promote the sustainable development of agriculture.