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003 MX-TxCIM
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020 _a92-9146-065-6
040 _aMX-TxCIM
072 0 _aF07
072 0 _aH60
082 0 4 _a633.15
_bEAS No. 6
100 1 _aMabasa, S.
_uMaize Production Technology for the Future: Challenges and Opportunities. Proceedings of the Eastern and Southern Africa Regional Maize Conference, 6; Addis Ababa (Ethiopia); 21-25 Sep 1998
110 2 _aCentro Internacional de Mejoramiento de Maiz y Trigo (CIMMYT), Mexico DF (Mexico)
245 0 0 _aTillage and weed control interactions on a semi-arid granitic catena. II. Weed responses
260 _aAddis Ababa (Ethiopia)
_bCIMMYT|EARO :
_c1999
300 _ap. 318-321
340 _aPrinted
520 _aWeed management affects the availability of soil moisture to the crop and therefore needs to be incorporated as a key element in conservation tillage. In this the second of three papers, we discuss the preliminary weed responses to reduced tillage for crop establishment and weeding methods reported in paper I. The third paper addresses the socioeconomic issues of participating farmers. The low draught minimum tillage planting techniques of open plough furrow planting (OPFP) and planting into a rip line (RIP), were associated with greater weed infestations than those observed on plots established by the farmers practice of third furrow planting (TFP). High numbers of Hibscus meeusei, Commelina benghalensis, Commelina subulata, Acanthospermum hispidum and Eleusine indica were found following OPFP and RIP. TFP tended to stimulate the emergence of Richardia scabra and Fimbristylis exilis. Low numbers of some common weed species emerged following the use of weeding with the ox-plough with supplementary hand hoeing (OPHH), particularly E. indica and A. hispidum, compared to hand hoeing (HH) and hand hoeing + ox- cultivation (OCHH). The evaluated weeding methods generally gave a similar level of weed control.
546 _aEnglish
591 _a0103|AL-Maize Program|AGRIS 0102|AJ
595 _aCPC
650 1 0 _aCommelina
650 1 0 _acontrol methods
650 1 7 _aCropping systems
_gAGROVOC
_2
_91068
650 1 0 _aEleusine indica
650 1 0 _aFarm management
650 1 7 _aMaize
_gAGROVOC
_2
_91173
650 1 0 _aSemiarid climate
650 1 0 _aSemiarid zones
650 1 7 _aSmall farms
_gAGROVOC
_2
_91260
650 1 7 _aWeed control
_gAGROVOC
_2
_91308
650 1 0 _aWeeds
_91309
650 1 0 _aZimbabwe
653 0 _aCIMMYT
650 1 0 _91314
_aZea mays
_gAGROVOC
650 1 0 _91832
_aTillage
_gAGROVOC
700 1 _aChatizwa, I.,
_ecoaut.
700 1 _aCIMMYT
700 1 _aDhliwayo, H.,
_ecoaut.
700 1 _aNyahunzvi, S.,
_ecoaut.
700 1 _aRiches, Ch.,
_ecoaut.
700 1 _aTwomlow, S.J.,
_ecoaut.
942 _cPRO
999 _c10052
_d10052