000 00479nam a2200157Ia 4500
008 170101s2009 xx 000 0 und d
082 _aARCH 633.18 P93H
100 _a[by] Yadvinder Singh [and others]
245 0 _aHappy seeder : a conservation agriculture technology for managing rice residues
260 _aLudhiana
_bPAU, Dept. of Soils
_c2009
300 _a29cm. ; 7
440 _aTechnical Bulletin no. 2009/01
650 _aRICE
653 _aRICE
942 _2ddc
_cB
999 _c137857
_d137857