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稀土是植物生理生化金属激活剂,具有促进作物生根发芽,提高叶片叶绿素含量,增加对氮、磷、钾等营养元素的吸收,增强抗逆性等功效。本试验初步探讨了稀土对大白菜产量及品质的影响。1 试验方法供试土壤为西安地区(土娄)土,pH值8.1,全氮为0.106%,全磷0.186%,碱解氮95×10~(-6),速效磷(p)10×10~(-6)有机质1.25%;供试稀土为河南商丘市稀土微肥示范厂生产,含稀土氧化物(RE_2O_3)
Rare earth is a plant physiological and biochemical activators, with the promotion of crop germination, increase leaf chlorophyll content, increase the absorption of nitrogen, phosphorus, potassium and other nutrients, enhance resistance and other effects. The experiment initially discussed the effect of rare earth on the yield and quality of Chinese cabbage. 1 Test method The soil used for the test was soil in Xi’an, with a pH of 8.1, a total nitrogen of 0.106%, a total phosphorus of 0.186%, a basic nitrogen of 95 × 10 -6, a phosphorus of 10 × 10 ~ (-6) organic matter 1.25%; The test rare earth for Shangqiu City, Henan rare earth fertilizer demonstration plant production, containing rare earth oxides (RE_2O_3)