000 00545nam a22001577a 4500
003 OSt
082 _a631.8
_bVIR/SO
245 _aSoil fertility and fertiliser use:
_bv.4 nutrient management and supply system for sustaining agriculture in 1990s
260 _aNew Delhi
_bIFFCO
_c1990
300 _axiv,357p.
546 _aEnglish
650 _aPresent agriculture production performance and future challenges
650 _aFertilisetr and sustainable agriculture
650 _aExtension education in fertiliser management
942 _2ddc
_cBK
999 _c161195
_d161195