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Management of biological nitrogen fixation for the development of more productive and sustainable agricultural systems : : extended versions of papers presented at the Symposium on Biological Nitrogen Fixation for Sustainable Agriculture at the 15th Congress of Soil Science, Acapulco, Mexico, 1994 / edited by J.K. Ladha and M.B. Peoples

Tác giả : edited by J.K. Ladha and M.B. Peoples

Nhà xuất bản : Kluwer Academic Publishers

Năm xuất bản : 1995

Nơi xuất bản : Dordrecht, Netherlands

Mô tả vật lý : 287 p. : ill. ; 27 cm

ISBN : 0792334132

Số phân loại : 631.847

Tùng thư : Developments in plant and soil sciences

Chủ đề : 1. Nitrogen in agriculture -- Congresses. 2. Cropping systems -- Congresses. 3. Nitrogen -- Congresses -- Fixation. 4. Sustainable agriculture -- Congresses. 5. Bảo tồn nước. 6. Hệ thống canh tác. 7. Phát triển bền vững.

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Tóm tắt :

The subsistence agriculture of the pre-chemical era efficiently sustained the nitrogen status of soils by maintaining a balance between N loss and N gain from biological nitrogen fixation (BNF): the microbial conversion of atmospheric N to a form usable by plants. This was possible with less intensive cropping, adaptation of rational crop rotations and intercropping schemes, and the use of legumes as green manure. Modern agriculture concentrates on maximum output, however, overlooking input efficiency; It is not sustainable. Intensive monocropping, with no or inadequate crop rotations or green manuring, together with the excessive use of chemical N fertilizers, results in an imbalance between N gain and N loss. The losses are often larger than the gains, and soil N status declines. The challenge is to sustain soil N fertility in many different tropical and temperate farming systems operating at high productivity levels. This requires judicious integration of BNF components, maintaining a good balance between N losses and gains. In this book, papers on BNF in crop forage and tree legumes are augmented with discussions of integrated farming systems involving BNF, soil and N management, and recycling of legume residues. BNF by non-legumes are discussed, and attempts to transform cereals into nodulating plants are critically reviewed. Advances in the development of novel methodologies to understand symbiotic relations and to assess N2 fixation in the field are described, and means are presented to enhance BNF through plant and soil management or breeding and selection. Problems encountered in exploiting BNF under field conditions are examined, as are promising approaches to improving BNF exploitation.

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Thư viện	Ký hiệu xếp giá	Dữ liệu nguồn
Thư viện đại học Cần Thơ		https://lrcopac.ctu.edu.vn/pages/opac/wpid-detailbib-id-123141.html

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020	##	$a0792334132 :$c188.05
082	04	$221st ed.$a631.847$bM266
111	2#	$aSymposium on Biological Nitrogen Fixation for Sustainable Agriculture$cAcapulco, Mexico$d1994
245	10	$aManagement of biological nitrogen fixation for the development of more productive and sustainable agricultural systems : :$bextended versions of papers presented at the Symposium on Biological Nitrogen Fixation for Sustainable Agriculture at the 15th Congress of Soil Science, Acapulco, Mexico, 1994 /$cedited by J.K. Ladha and M.B. Peoples
260	##	$aDordrecht, Netherlands :$bKluwer Academic Publishers ,$c1995
300	##	$a287 p. :$bill. ;$c27 cm
490	0#	$aDevelopments in plant and soil sciences$vv.65
500	##	$aReprinted from Plant and soil, v.174, no.1-2 (1995) _ T.p ;
500	##	$aIncludes index
520	3#	$aThe subsistence agriculture of the pre-chemical era efficiently sustained the nitrogen status of soils by maintaining a balance between N loss and N gain from biological nitrogen fixation (BNF): the microbial conversion of atmospheric N to a form usable by plants. This was possible with less intensive cropping, adaptation of rational crop rotations and intercropping schemes, and the use of legumes as green manure. Modern agriculture concentrates on maximum output, however, overlooking input efficiency; It is not sustainable. Intensive monocropping, with no or inadequate crop rotations or green manuring, together with the excessive use of chemical N fertilizers, results in an imbalance between N gain and N loss. The losses are often larger than the gains, and soil N status declines. The challenge is to sustain soil N fertility in many different tropical and temperate farming systems operating at high productivity levels. This requires judicious integration of BNF components, maintaining a good balance between N losses and gains. In this book, papers on BNF in crop forage and tree legumes are augmented with discussions of integrated farming systems involving BNF, soil and N management, and recycling of legume residues. BNF by non-legumes are discussed, and attempts to transform cereals into nodulating plants are critically reviewed. Advances in the development of novel methodologies to understand symbiotic relations and to assess N2 fixation in the field are described, and means are presented to enhance BNF through plant and soil management or breeding and selection. Problems encountered in exploiting BNF under field conditions are examined, as are promising approaches to improving BNF exploitation.
650	#0	$2Trung tâm Học liệu ĐHCT$aNitrogen in agriculture$xCongresses
650	#0	$aNitrogen$xCongresses$xFixation
650	#0	$aCropping systems$xCongresses
650	#0	$aSustainable agriculture$xCongresses
653	##	$aBảo tồn nước
653	##	$aPhát triển bền vững
653	##	$aHệ thống canh tác
700	1#	$aLadha, J. K.$d1952$q(Jagdish Kumar)
700	1#	$aPeoples, M. B
700	1#	$aDixon, R. O.
710	2#	$aInternational Rice Research Institute
900		1
925		G
926		0
927		SH

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