冬小麦合理运用春季第一肥水,是高产、稳产、低成本的重要管理环节。多年研究和群众性田间管理的实践证明,在高产田,如果水肥配套,春季第一肥水一般都以运用在起身期(5厘米深土壤温度6～8℃)为好。为了给面上的管理提供理论依据,1978年我们又进一步作了研究。 Winter wheat rational use of the first fertilizer in spring is high yield, stable yield, low cost an important part of management. Years of research and mass field management have proved that in high-yield fields, if the water and fertilizer are used together, the first spring fertilizer is generally used in the period of getting up (5 cm deep soil temperature 6 ~ 8 ℃) as well. In order to provide a theoretical basis for the management of the surface, in 1978 we further studied.