Title: Effects of P and K Combined Fertilization on the Yield of Alfalfa
Abstract: The combined fertilization experiments were carried out in Beijing area from 2003 year to 2005 year.Two-parameter splitting plot design was used to determine the effects of combinations of N,P on fresh yield,dry yield and the ratio of stem/leaf in alfalfa.Experiments showed that combined fertilization could significantly elevate yield of alfalfa,The highest yield was gained when fertilizing 45.8 kg/ha P2O5 and 12.5 kg/ha K2O.The fresh yield of 2004 year and 2005 year were 67 900.5 kg/ha and 97 320 kg/ha,higher 19.3%,10.7% than CK,and the dry yield of 2004 year and 2005 year were 18 870 kg/ha and 22 999.5 kg/ha,higher 22.9% and 23% than CK.ANOVA analysis showed that there was significantly differences on fresh yield,dry yield and the ratio of stem/leaf under different combinations at the 0.05 level.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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