000 03123nab a22003617a 4500
999 _c58193
_d58185
001 58193
003 MX-TxCIM
005 20220920151607.0
008 160517s2016 xxu|||p|op||| 00| 0 eng d
024 8 _ahttps://doi.org/10.3934/agrfood.2016.1.85
040 _aMX-TxCIM
041 _aeng
100 1 _aMupangwa, W.
_gSustainable Intensification Program
_gSustainable Agrifood Systems
_8INT3147
_9894
245 1 0 _aRainfall risk and the potential of reduced tillage systems to conserve soil water in semi-arid cropping systems of southern Africa
_h[Electronic Resource]
260 _aSpringfield, USA :
_bAIMS Press,
_c2016.
500 _aOpen Access
500 _aPeer review
520 _aImprovement of household food security in the Limpopo Basin has been elusive due to a combination of factors related to information and market constraints, but also farmers’ risk aversion induced by the high variability of rainfall during the growing season. The purpose of this study was to (1) characterize the rainfall and growing season patterns experienced by smallholder farmers, and (2) measure soil water dynamics in ripper and basin tillage systems being promoted in the semi-arid Limpopo Basin of southern Africa. The results show that the second half of the growing season receives more rainfall than the first half in the Limpopo Basin. However, rainfall is more variable during the January-March than the October-December period. Growing seasons start earlier and end later in the Mozambique part of the basin which is closer to the Indian Ocean. The Limpopo Basin is prone to two and three week dry spells with chances of 14 day spells higher (34–42%) than the 21 day spells (8–12%). The chances of 14 and 21 day dry spells increase substantially during the second half of the growing season. The 1980–1990 was one of the driest decades in the Limpopo Basin. Planting basin system conserved more soil water on sandy loam (18–24%) and clay loam (4–12%) soils than the conventional practice during flowering and grain filling maize growth stages. Ripper had 17–29% more soil water than conventional practice during flowering and grain filling maize growth stages. There is a high risk of dry spells and soil water deficits in smallholder cropping systems of the Limpopo basin. There is therefore scope in promoting rain and soil water management technologies, and good land husbandry in order to reduce risk of crop failure in the smallholder cropping systems.
526 _aMCRP
_bFP1
546 _aText in English
650 7 _aCropping systems
_gAGROVOC
_2
_91068
650 7 _92274
_aWater conservation
_2AGROVOC
650 7 _92273
_aSoil conservation
_2AGROVOC
650 7 _91080
_aDrought
_2AGROVOC
651 7 _94496
_aZimbabwe
_gAGROVOC
700 1 _92517
_aWalker, S.
700 1 _94084
_aMasvaya, E.
700 1 _94085
_aMagombeyi, M.
700 1 _94086
_aMunguambe, P.
773 0 _wu57927
_x2471-2086
_dSpringfield, USA : AIMS Press,
_tAIMS agriculture and food
_gv. 1, no. 1, p. 85-101
856 4 _uhttp://hdl.handle.net/10883/18132
_yOpen Access through DSpace
942 _2ddc
_cJA
_n0