02112nam a2200313 a 450000100080000000500110000800800410001902000180006010000180007824500750009626000450017130000180021652011560023465000160139065000240140665000220143065000200145265000200147265000170149265300400150965300500154965300370159965300280163665300290166465300270169365300380172065300210175865300190177918793282015-11-13       2001    bl uuuu     u0uu1 u    #d  a0-85199-417-21 aGILLER, K. E.  aNitrogen fixation in tropical cropping systems.h[electronic resource]  aWallingford: CABI Publishing:2001.c2001  axviii + 423 .  aThe second edition of this book, first published in 1991 and intended for students and researchers, contains revised and updated material on the theory and practice of nitrogen fixation in tropical cropping systems. There are 15 chapters in 3 parts. Part I, Introduction, contains 5 chapters on tropical environments (climate, soils and cropping systems), nitrogen fixing organisms, the process of nitrogen fixation, assessment of the role of nitrogen fixation, and cycling of nitrogen in tropical cropping systems. Part II, Tropical crops and cropping systems, comprises 7 chapters on freeliving, root-associated and endophytic nitrogen fixing bacteria of cereal crops and grasses, cyanobacteria and Azolla as green manure for wetland rice, grain legumes, legumes as green manures and cover crops, forage legumes, understorey legumes and shade trees in plantation crops, and nitrogen fixing trees in agroforestry. Part III, optimizing nitrogen fixation, includes 3 chapters on environmental constraints, approaches to enhancement, and future impacts on nitrogen fixation in tropical agriculture. A list of common names and subject index are included.  afield crops  ahorticultural crops  aNitrogen fixation  aplant nutrition  asocial forestry  asoil biology  aAgroforestry and Multipurpose Trees  aBiochemistry and Physiology of Microorganisms  aFertilizers and other Amendments  aForage and Fodder Crops  aForests and Forest Trees  aPlant Cropping Systems  aPlant Physiology and Biochemistry  aPlant Production  aTropical crops