01491cam a2200301 a 45000010008000000030008000080050017000160080041000330100017000740200015000910400027001060500020001330820020001531110133001732450306003062600048006123000033006603650014006935000148007075040029008556500038008846500041009226500047009636500034010107000033010447000028010777100084011052436585BD-DhUL20150108170549.0880412s1988    enka     b    100 0 eng    a   88011141   a1851662405  aDLCcDLCdDLCdBD-DhUL00aS651b.S44 198700a631.84219bJEN2 aSeminar on Nitrogen Efficiency in Agricultural Soils and the Efficient Use of Fertilizer Nitrogend(1987 :cEdinburgh, Scotland)10aNitrogen efficiency in agricultural soils :ba Seminar on Nitrogen Efficiency in Agricultural Soils and the Efficient Use of Fertilizer Nitrogen, held in Edinburgh, 16-18 September 1987, as part of the EC Programme for the Coordination of Agricultural Research /ced. by D.S. Jenkinson and K.A. Smith.  aLondon :bElsevier Applied Science,cc1988.  aix, 450 p. :bill. ;c25 cm.  aGBPb3.90  a"Sponsored by the Commission of the European Communities, Directorate-General for Agriculture, Coordination of Agricultural Research Division."  aIncludes bibliographies. 0aNitrogen fertilizersvCongresses. 0aSoilsxNitrogen contentvCongresses. 0aPlantsxEffect of nitrogen onvCongresses. 0aCropsxNutritionvCongresses.1 aJenkinson, D. S.q(David S.)1 aSmith, Keith A.,d1940-2 aCommission of the European Communities.bCoordination of Agricultural Research.