00623cam a22002297a 4500003000500000005001700005008004100022010000900063011001000072035000900082040000900091082001600100100001900116245007000135260004900205300001900254650002500273650002100298650002900319650002500348700002000373CHAP20220329133648.0971013s1991            r     00010     d  a9179  a10151  a9388  cCHAP  a631.847bG500aGiller, Ken E. 0aNitrogen fixation in tropical cropping systemsc/by Ken E. Giller  aWallingford, UK :bCAB International,c1991.  a313 p.b: ilus14aCultivos tropicales.14aNitrificación.14aNitrógenoxFijación.14aSistemas de cultivo.0 aWilson, Kate J.