000 01172cam a2200313Ia 4500
001 u11523
003 SIRSI
005 20180220093610.0
008 951125s1994 enka b 001 0 eng d
020 _a0750605626
039 9 _a200306211125
_bhala
_y200203190933
_zload
040 _aEAL.
050 _aS494.5.P75
_bC75 1994
245 0 0 _aCrop productivity.
260 _aOxford :
_bButterworth-Heinemann,
_c1994.
300 _ax, 282 p. :
_bill. ;
_c25 cm.
490 1 _aBiotechnology by Open Learning
500 _aPublished on behalf of open unversiteit and Unversity of Greenwich (formerly Thames Polytechinc).
504 _aIncludes bibliographical references (p. 279-281) and index.
596 _a1
650 0 _aAgricultural productivity
_xProgrammed instruction.
650 0 _aCrop yields
_xProgrammed instruction.
710 2 0 _aBIOTOL (Project)
710 2 0 _aOpen Unversiteit (Heerlen, Netherlands)
830 0 _aBiotechnology by Open Learning (Series)
942 _cBK
_2lcc
999 _c19917
_d19917