000 00967nam a2200169 4500
999 _c4002
_d4002
005 20190823111805.0
008 160628b xxu||||| |||| 00| 0 eng d
020 _a0521345928
040 _aZET-Ke
050 _aQH 45.2
_b.V36 1989
100 _aVandermeer, John
245 _aThe Ecology of Intercropping /
_cJohn Vandermeer
260 _aCambridge :
_bCambridge University Press ,
_c1989
300 _a237p p.
_c20 cm
505 _aIntercrops and ecology -- The measurement of intercrop performance -- The competitive production principle -- Facilitation -- Mechanisms of the competitive production principle -- The environments modified to produce facilitation -- Special problems in intercrops involving perennials -- Weeds and intercrops -- Variability and intercrops -- Planning intercrops - a phenomenological approach -- Planning intercrops - a mechanistic approach -- Critical research directions for the future.
942 _2lcc
_cBK
_kQH 45.2
_m.V36 1989