000			00713nam a2200241Ia 4500
008			130910s9999 xx 000 0 und d
041			_aeng
082			_221st ed. _a631.81 _bEFF: 2
245			_aEfficient use of fertilizers _cedited by Vladimir Ignatieff and Harold J. Page
250			_arev. and enl. ed.
260			_aItaly : _bFood and Agriculture Organisation of the United Nations , _c1962
300			_axxii, 334p.: ill ; _c23cm
504			_aIndex: pp 335-55
653			_aCropping systems
653			_aCrops
653			_aFertilizers
653			_aManures
653			_aPlant nutrition
653			_aUses
700			_aIgnatieff, Vladimir, ed.
700			_aPage , Harold J., ed.
942			_cEN _2ddc
999			_c1478 _d1478