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[1]MA Dong-mei,JIN Feng-xia,MENG Jing,et al.Effects of Alfalfa with Different Growth Years on the Soil Physical and Chemical Properties, Soil Microbial, Forage Quality[J].Research of Soil and Water Conservation,2013,20(05):29-32.

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Effects of Alfalfa with Different Growth Years on the Soil Physical and Chemical Properties, Soil Microbial, Forage Quality

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 20 Number of periods: 2013 05 Page number: 29-32 Column: Public date: 2013-10-28

Title:: Effects of Alfalfa with Different Growth Years on the Soil Physical and Chemical Properties, Soil Microbial, Forage Quality

Author(s):: MA Dong-mei¹, JIN Feng-xia¹, MENG Jing², YANG Peng-peng¹, LIU Hao-yan¹, XU Xing¹; 1. School of Agriculture, Ningxia University, Yinchuan 750021, China;
2. Office of Agriculture Comprehensive Development, Yinchuan 750001, China

Keywords:: alfalfa; soil physical and chemical properties; soil microbial; forage quality

CLC:: S153

DOI:: -

Abstract:: With the prolongation of growth, soil quality and forage quality of alfalfa gradual degrade. This experiment based on different growth years of alfalfa, the soil physical and chemical properties were studied, and the changes of soil quality and forage quality were analyzed and compared. The results show that in alfalfa growing season, the seasonal change in soil moisture contents is different, with the increase of soil depth, the soil moisture first increased and then reduced; with the extension of cultivation years, alkaline hydrolysis nitrogen and available potassium contents showed a decrease trend, available phosphorus content first increased and then decreased; the soil microbial florage of different growth years of alfalfa is dominated by bacteria, fungi is the least, total number of microbes 4-year alfalfa is the highest, the lowest for the 3-year alfalfa; and the quality of alfalfa decreased with the increase in growth years, the influence degrees of cultivation period on soil quality and alfalfa forage quality are different.

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