6Garg R N,Pathak H,Das D K,Tomar R K.Use of Flyash and Biogas Slurry for Improving Wheat Yield and Physical Properties of Soil[J].Environmental Monitoring and Assessment,2005,9:1-9.
7Sarker M A,Itohara Y,Hoque M,Sarder N.Scope and challenges of organic wheat cultivation in Bangladesh[J].Australian Journal of Crop Science,Wheat Special Issue,2011:1114-1119.
8Olesen J E,Askegaard M,Rasmussen I A.Winter cereal yields as affected by animal manure and green manure in organic arable farming[J].European journal of agronomy,2009,30(2):119-128.
9Jiang L N,Wang Q,Chen D J,Li A F,Qian S M,Fu J R,Wang J M.Effects of Paddy Field Disposal of Biogas Slurry on the Rice Production,Soil Quality and Environmental Safety[J].Agro-Environment Science.2011,30(7):1328-1336.
10Ghaffari Azhar,Ali Asghar,Tahir Muhammad,Waseem,M.Ayub,Asif Iqbal,Atta Ullah Mohsin.Influence of Integrated Nutrients on Growth,Yield and Quality of Maize (Zea mays L.)[J].American Journal of Plant Sciences,2011,(3):63-69.
