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１９９０年～１９９４年在江西鹰潭中科院红壤生态站，以纤毛鹅观草—禾草植被系统进行研究。结果表明，新垦红壤旱地４年土壤供钾量（Ｋ２Ｏ）为１８９．９ｋｇ／ｈｍ２；第一年约占４０％；施用Ｋ２Ｏ６００ｋｇ／ｈｍ２仍达不到钾素收支平衡，土壤钾素因植物吸钾量而变化。４年土壤供镁量（ＭｇＯ）为１０２．２ｋｇ／ｈｍ２，第一年约占４７％；施用ＭｇＯ３００ｋｇ／ｈｍ２，年盈余ＭｇＯ３７．９ｋｇ／ｈｍ２。高产牧草中的ＭｇＯ／Ｋ２Ｏ比值为０．０３～０．１０。施钾牧草各年分别增产８１．３％、１４２．９％、１７０．６％和３１９．４％；施镁增产２．８％～２２．６％，高量钾配施镁，牧草增产较大。
From 1990 to 1994, the red soil ecological station of Chinese Academy of Sciences in Yingtan, Jiangxi Province was studied with the cilia grass-grass vegetation system. The results showed that K 2 O was 189.9kg / hm 2 in the first three years of dry land farming and about 40% in the first year. However, K 2 O 600kg / hm 2 did not reach the balance of K balance, Potassium changes. 4 years of soil MgO is 102.2kg / hm2, about 47% in the first year; MgO 300kg / hm2, the annual surplus MgO37.9kg / hm2. The ratio of MgO / K2O in high yield forage ranged from 0.03 to 0.10. Potash pasture yield increased by 81.3%, 142.9%, 170.6% and 319.4% respectively over the years. Magnesium yield increased by 2.8% ~ 22.6% Big.