Experimental result conducted for many years in south Ningxia hilly area indicated that comprehensive technical approachs combined chemical fertilizer, organic fertilizer, coverage during growth season with deep ploughing can largely raise yield and water use efficiency of spring wheat under rain fed condition, yield and water use efficiency increase 41. 5 % and 51. 0% respectively compared with single chemical fertilizer treatment. Of comprehensive technical approachs, chemical fertilizer > organic fert...
修改评论