副題名外文題名Cotton response to nitrogen and the mechanism of efficient utilization to nitrogen fertilizer論文作者楊國正著導師駱炳山,張獻龍指導學科專業學位級別農學博士學位授予單位華中農業大學學位授予時間2011關鍵字館藏號唯一標識符108.ndlc.2.1100009031010001/T3F24.006533700館藏目錄\ \