免费文献传递   相关文献

Effect of Film Mulching on the Nitrogenase Activity in Nodules and the Nirate Reductase Activity(NRA)in Leaves of Summer Peanut(A.hypogaea L.)

夏花生覆膜对根瘤中固氮酶和叶片硝酸还原酶活性影响的研究



全 文 :