板栗喷施稀土效果好稀土包括镧系元素和钪、钇等１７种元素。板栗喷施稀土，能促进树体的生长发育，新梢长度及粗度增加，叶面积加大，叶色浓绿；每果枝栗蓬数（２．３１）、单粒重（７．３ｇ）、株产（６．４ｋｇ）分别比对照增加３１．７４％、５．８％和１０．３４％，... Chestnut rare earth effect of rare earths, including lanthanides and scandium, yttrium and other 17 kinds of elements. Chestnut spraying of rare earth, can promote the growth and development of the tree, the shoot length and thickness increased, the leaf area increased leaf color dark green; Pursuits Puzzle per fruit (2.31), single grain weight (7.3g) (6.4kg), respectively, increased 31.74%, 5.8% and 10.34% than the control, ...