challenges of reducing excess nitrogen in japanese agroecosystems
kazuyuki yagi & katsuyuki minami national institute for agro-environmental sciences (niaes); tsukuba 305-8604; japan

..............page:928-936

cereal area and nitrogen use efficiency are drivers of future nitrogen fertilizer consumption
achim dobermann & kenneth g. cassman department of agronomy and horticulture; university of nebraska-lincoln; p.o. box 830915; lincoln; ne 68583-0915; usa

..............page:745-758

the global nitrogen cycle:past,present and future
james n. galloway environmental sciences department; university of virginia; charlottesville virginia 22904; usa i

..............page:669-677

options for reducing the negative effects of nitrogen in agriculture
j. r. freney csiro plant industry; g.p.o. box 1600; canberra; a.c.t. 2601; australia

..............page:861-870

balanced nitrogen economy as a flexible strategy on yield stabilizing and quality of aquatic food crops in wetland ecosystem
a. m. puste; p. k. sarkar & d. k. das department of agronomy; faculty of agriculture; bidhan chandra krishi viswavidyalaya (agricultural university) mohanpur -741 252; nadia; west bengal; india department of agricultural chemistry and soil science; faculty of agriculture; bidhan chandra krishi viswavidyalaya (agricultural university) mohanpur - 741 252; nadia; west bengal; india

..............page:980-987

cascading costs:an economic nitrogen cycle
william r. moomaw & melissa b. l. birch fletcher school; tufts university; medford; ma 02155; usa

..............page:678-696

a comparison of nitrate transport in four different rice (oryza sativa l.) cultivars
fan xiaorong; shen qirong; ma zhengqiang; zhu huilan; yin xiaoming & anthony j. miller college of resources and environmental sciences; nanjing agricultural university; nanjing 210095; china; state key laboratory of crop genetics and germplasm enhancement; nanjing agricultural university; nanjing 210095; china; crop performance and improvement division; rothamsted research; harpenden; hertfordshire al5 2jq; u.k.

..............page:897-911

preface

..............page:3-4

the dutch n-cascade in the european perspective
jan willem erisman; nelleke domburg; wim de vries; hans kros; bronno de haan & kaj sanders energy research center of the netherlands; ecn; p.o.box 1; 1755 zg petten; the netherlands; alterra green world research; p.o.box 47; 6700 aa wageningen; the netherlands; rivm; p.o.box 1; 3720 ba bilthoven; the netherlands; ministry of housing; spatial planning and the environment; vrom; the netherlands

..............page:827-842

Capitalizing on multi-element interactions through bal-anced nutrition——A pathway to improve nitrogen use efficiency in China, India and North America
paul e. fixen; jin jiyun; k. n. tiwari & mark d. stauffer potash & phosphate institute; brookings; sd 57006; usa; soil & fertilizer institute; chinese academy of sciences; beijing 100081; china; potash & phosphate institute of canada; midtown plaza; sk s7k 1j5; canada

..............page:780-790

for holistic control of reactive n:regional,national and global perspectives
makoto kimura laboratory of bioresource functions (soil biology and chemistry); department of biological mechanisms and functions; graduate school of bioagricultural sciences; nagoya university; nagoya 464-8601; japan

..............page:856-860

nanjing declaration on nitrogen management
prof. zhoaliang zhu soil science institute chinese academy of sciences people s republic of china co-chair of the conference prof. katsu minami national institute of agro-environmental sciences japan co-chair of the conference prof. james galloway university of virginia usa chairman of ini

..............page:5-6

sub-regional dimensions of agricultural and environmental nitrogen:the case of asia
john keith syers school of science; mae fah luang university; chiang rai 57100; thailand

..............page:738-744

the nitrogen cycle,scientific uncertainty and policy relevant science
david norse department of geography; university college london; wcih obt; uk

..............page:807-817

environmental friendly nitrogen fertilization
avi shaviv faculty of civil and environmental engineering technion-iit; haifa

..............page:937-947

potentials for win-win alliances among animal agriculture and forest products industries:application of the princi-ples of industrial ecology and sustainable development
ellis b. cowling & cari s. furiness north carolina state university; raleigh; north carolina 27606; usa

..............page:697-709

innovative use of controlled availability fertilizers with high performance for intensive agriculture and environmental conservation
sadao shoji professor emeritus; tohoku university; sendai 982-0034 japan; technical adviser; chisso corporation; tokyo 104-8555; japan

..............page:912-920

emission scenario of non-co_2 gases from energy activities and other sources in china
jiang kejun & hu xiulian energy research institute; beijing 100038; china

..............page:955-964

impacts of population growth and economic development on the nitrogen cycle in asia
zhu zhaoliang; xiong zhengqin& xing guangxi state key laboratory of soil and sustainable agriculture; institute of soil science; chinese academy of sciences; nanjing 210008; china

..............page:729-737

current status and future tendency of lake eutrophication in china
jin xiangcan; xu qiujin & huang changzhu chinese research academy of environmental sciences; beijing 100012; china

..............page:948-954

information for authors

..............page:988

strategies for farmers and policy makers to control nitro-gen losses whilst maintaining crop production
keith w. t. goulding agriculture and the environment division; rothamsted research; harpenden; hertfordshire; al5 2jq; uk

..............page:710-719

soil nitrogen balance assessment and its application for sustainable agriculture and environment
rabindra nath roy & ram vimal misra land and water development division; fao; rome 00100; italy

..............page:843-855

nitrogen deposition and reduction of terrestrial biodiversity:evidence from temperate grasslands
nancy b. dise & carly j. stevens department of earth sciences; open university; milton keynes; mk7 6aa; uk; department of biology; villanova university; villanova; pa 19085; usa; department of agricultural science; imperial college at wye; wye; ashford; tn25 4nj; uk

..............page:720-728

global nitrogen fertilizer supply and demand outlook
michel prud homme international fertilizer industry association (ifa); paris; france

..............page:818-826

nitrogen use scenario in india
a. p. gupta department of soil science; ccs haryana agricultural university; hisar 125004; india

..............page:921-927

nitrogen in global animal production and management options for improving nitrogen use efficiency
oene oenema & seerp tamminga environmental sciences; wageningen university & research center; p.o.box 47; nl-6700 aa wageningen; the netherlands; animal sciences; wageningen university & research center; p.o.box 338; nl-6700 ah wageningen; the netherlands

..............page:871-887

global assessment of nitrogen fertilizer:the scope/igbp nitrogen fertilizer rapid assessment project
arvin r. mosier; j. keith syers & john r. freney agricultural and biological engineering department; university of florida; gainesville; fl 32611; usa; mae fah luang university; chaiang rai; thailand; csiro plant industry; act 2601; australia

..............page:759-766

symbiosome-like intracellular colonization of cereals and other crop plants by nitrogen-fixing bacteria for reduced inputs of synthetic nitrogen fertilizers
edward c. cocking; philip j. stone & michael r. davey centre for crop nitrogen fixation; school of biology; university of nottingham; university park; nottingham ng7 2rd; u.k.; plant sciences division; school of biosciences; university of nottingham; sutton bonington; loughborough le12 5rd; u.k.

..............page:888-896

the development of policy approaches for reducing nitro-gen pollution to coastal waters of the usa
robert w. howarth department of ecology & evolutionary biology; cornell university; ny 14853; usa

..............page:791-806

utilization and management of organic wastes in chinese agriculture:past,present and perspectives
ju xiaotang; zhang fusuo; bao xuemei; r zuo mheld v. & roelcke m. key laboratory of plant-soil interactions; ministry of education; college of resources and environmental sciences; china agricultural university; beijing 100094; china; institute of plant nutrition; university hohenheim; 70593 stuttgart; germany; institute of geoecology; technical university carolo-wilhelmina; 38106 braunschweig; germany

..............page:965-979

surface n balances and reactive n loss to the environment from global intensive agricultural production systems for the period 1970-2030
a. f. bouwman; g. van drecht & k. w. van der hoek netherlands environmental assessment agency; national institute for public health and the environment; p.o. box 1; 3720 ba bilt hoven; the netherlands; laboratory for environmental monitoring; national institute for public health and the environment; p.o. box 1; 3720 ba bilthoven; the netherlands

..............page:767-779