000			020980000a22005170004500
911			_aXL1991004977
901			_aF04
902			_aP35
903			_aE
903			_aV
904			_aBCO
905			_aC
906			_a19910101
908			_aJ
909			_aAS
912			_aEn
912			_aEn
914			_aCACAO
914			_aEXTRA
914			_aBCO1
082	0	4	_a633.74322 _bO39
100	1		_9100652 _aOjeniyi, S.O.
100	1		_964586 _aEgbe, N.E.
100	1		_9101169 _aOmotoso, T.I.
260			_c1982
041	0		_aEn
500			_a3 tab. 10 ref. Sum. (En)
520			_aNo extensive investigation on the effect of fertilizers on Amazon cocoa variety (Theobroma cacao L.) has been performed in Nigeria. Therefore eight fertilizer treatments involving nitrogen and phosphorus, replicated six times at four locations across southern Nigeria, were established in 1973. The four N levels (N0, N1, N2, N3) involved were 0, 80, 160 and 240 kg ha exponent -1 y exponent -1, and the two P levels (P0, P1) were 0 and 67 kg ha exponent -1 y exponent -1. Results of the first 5 years of fertilizer application are reported. Response to P was observed at all locations, and the response was statistically significant at 2 of the locations. There was no response to the application of nitrogen. The data suggest, however, that there is only a response to phosphorus when nitrogen is applied.
650	1	4	_9166664 _aTHEOBROMA CACAO
650	1	4	_9140751 _aCLONES AMAZONAS
650	1	4	_9147868 _aFERTILIZANTES NP
650	1	4	_9143077 _aCULTIVO BAJO SOMBRA
650	1	4	_9135795 _aANALISIS DEL SUELO
650	1	4	_9156001 _aNIGERIA
691			_9166664 _aTHEOBROMA CACAO
691			_9338893 _aSOIL ANALYSIS
691			_9156001 _aNIGERIA
692			_aTHEOBROMA CACAO
692			_aANALYSE DE SOL
692			_aNIGERIA
773	0		_tFertilizer Research (Países Bajos) _d1982 _gv. 3 p. 13-16
040			_aCR-TuBCO _cCR-TuBCO _bEs
245	1	0	_aEffects of nitrogen and phosphorus fertilizers on unshaded Amazon cocoa in Nigeria
942			_cANA
003			CR-TuBCO
999			_c70988 _d70988