000			02364nam a22003977a 4500
001			G67787
003			MX-TxCIM
005			20211006081057.0
008			121211s ||||f| 0 p|p||0|| |
020			_a970-648-006-4
040			_aMX-TxCIM
072		0	_aF01
072		0	_aP33
082	0	4	_a631.45 _bWAD
100	1		_aChivaura-Mususa, C.C. _uSoil Fertility Research for Maize-Based Farming Systems in Malawi and Zimbabwe; Mutare, (Zimbabwe); 7-11 Jul 1997. Proceedings of the Soil Fertility Network Results and Planning Workshop
110	2		_aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
245	0	0	_aMaize crop yields under individual scattered trees
260			_aHarare (Zimbabwe) _bSoil Fert Net|CIMMYT : _c1998
340			_aPrinted
520			_aAt a research site in Zimbabwe, maize (Zea mays, variety R201) crop yields were measured under and outside individual trees of Parinari curatellifolia and Acacia sieberana in the 1992/93, 1994/95 and 1995/96 crop growing seasons and the influence of soil moisture and solar radiation were determined. Rainfall was positively correlated to maize grain yields (R2= 0.809). Higher yields were harvested in 1992/93 (3.7 t ha-1 and 730 mm) and 1995/96 (5 t ha-1, 846 mm) and lower yields in 1994/95 (3.1 t ha-1, 434 mm). Though throughfall was not significantly different from rainfall in the open, there was no consistent pattern with soil moisture under and outside trees. Soil was driest in the drier season (1994/95) but soil moisture was maintained close to field capacity in the wetter seasons (1992/93 and 1995/96). Maize yields were consistently better outside the shade of tree crowns in all the three seasons. Yields under trees were suppressed due to 60-90% interception of solar radiation by the tree crowns.
546			_aEnglish
591			_a9906|AGRIS 9902|R98-99ANALY
593			_aJose Juan Caballero
595			_aCPC
650	1	7	_aCrop management _gAGROVOC _2 _91061
650	1	0	_91824 _aSoil chemicophysical properties _gAGROVOC
650	1	0	_aTrees
650	1	0	_aZimbabwe
653	0		_aCIMMYT
653	0		_aSoil Fert Net
650	1	0	_91314 _aZea mays _gAGROVOC
700	1		_aCampbell, B.M., _ecoaut.
700	1		_aJarvis, N.J., _ecoaut.
700	1		_aWaddington, S.R.|Murwira, H.K.|Kumwenda, J.D.T.|Hikwa, D.|Tagwira, F. _eeds.
942			_cPRO
999			_c4246 _d4246