研究绿肥养分释放规律,合理利用绿肥,对充分发挥其效益,有着十分重要意义。国内外对绿肥腐解规律的研究十分重视,积累了许多宝贵的资料。但对如何把绿肥养分释放特点和后作物的需肥结合起来,以指导农作物的田间管理则研究不多。为此,1977年以来,我们用田菁作为 It is of great significance to study the law of green manure nutrient release and rational use of green manure to give full play to its benefits. At home and abroad, the study on the law of decomposition of green manure attaches great importance, and accumulated many valuable information. However, there is not much research on how to combine the characteristics of release of green manure and the need for fertilizer of later crops to guide the field management of crops. To this end, since 1977, we use as Tian Jing