微肥、稀土对苜蓿产量和品质的影响

The influence of trace element fertilizer and rare earth element on alfalfa yield and quality

在土壤瘠薄、盐碱较重的地段研究微肥、稀土对苜蓿产量及品质的影响,结果表明:喷施微肥及稀土对苜蓿有明显增产作用,200 g/kg稀土液产量最高,为16 708.40 kg/hm2,比对照高24.74%;施肥后粗蛋白含量明显提高,100 g/kg稀土液效果最好,两茬分别为22.14%、23.30%,比对照提高35.99%、30.75%;喷施微肥及稀土可增加苜蓿种植的经济效益,200 g/kg稀土液,净增收1 979.52元/hm2。

The influence of trace element fertilizer and rare earth element on alfalfa＇s yield and quality was studied on barren, heavity salted place . The results indicated that： trace element fertilizer and rare earth element can raise alfalfa＇s yield, the solution of 200 PPM rare earth element is the highest, the yield is 16 708. 40 kg/hm^2 , higher than the antitheses 24. 74%; the protein content of alfalfa rai ses after fertilizing, the solution of 100 g/kg rare earth element is obvious , the content of protein is 22. 14%, 23.30% respectively, more than the antitheses35.99%, 30, 75% ;to raise the income of alfalfa plant, the solution of 200 g/kg rare earth element is the highest, being 1 979.52 yuan/hm^2.