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Effect of the amount of surface maize residue on infiltration and soil loss from a clay loam soil
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P.M. Lang --- , Republic of South Africa J.B. Mallett --- , Republic of South AfricaSix levels of maize stover, expressed as percentage ground cover (0–75%) were compared under a rainfall simulator to assess the effect of surface residues on infiltration and soil loss on a clay loam soil with a 3,5% slope. Increasing the... -
Potato irrigation scheduling and straw mulching
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.S. Burgers --- Department of Plant Production, P.C. Nel --- Department of Plant Production,The effect of mulching and irrigation frequency on tuber yield was investigated during three seasons at the Glen Agricultural Research Institute The soil on the experimental site consisted of a loamy sand topsoil and sandy clay subsoil with 94 mm... -
Physical properties of some highveld Vertisols
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: K. Snyman --- , M.V. Fey --- Department of Soil Science and Agrometeorology, A. Cass --- Department of Soil Science and Agrometeorology,Surface (0–20 cm) soils were sampled at 100 m intervals along a 3 km transect through Vertisols derived from dolerite and Ecca group mudstone near Standerton, Transvaal. The two geologically correlated soil bodies, which historically appear to have formed the... -
Soil-water conservation as affected by primary tillage practices
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W. A.J. Berry --- Summer Grain Sub-Centre, J.B. Mallett --- Summer Grain Sub-Centre, M.A. Johnston --- ,An investigation of water conservation as affected by different primary tillage methods was conducted on a soil of the Doveton series (fine-loamy, mixed, thermic family of Rhodic Paleudults), where a direct sampling technique was used to monitor the soil-water profiles... -
Soil-water conservation as affected by primary tillage practices
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: W. A.J. Berry --- Summer Grain Sub-Centre, J.B. Mallett --- Summer Grain Sub-Centre, M.A. Johnston --- ,An investigation of water conservation as affected by different primary tillage methods was conducted on a soil of the Doveton series (fine-loamy, mixed, thermic family of Rhodic Paleudults), where a direct sampling technique was used to monitor the soil-water profiles... -
'n Evaluering van die volumetermetode om aggregaatstabiliteit van 'n vertisol te kwantifiseer
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: D.J. Beukes --- Departement van Landbou en Watervoorsiening, Republiek van Suid-AfrikaDie 0–10 mm laag van twee proefpersele van 'n vertiese grond waarop graansorghum sonder enige bewerking met behoud van 'n stoppeldeklaag (GBS) en met die Stoppel verwyder (GBG), verbou is, is gemonster. Grond- koolstofinhoud was 1,82% en 1,15% onderskeidelik. Massas... -
The effect of reduced tillage on soil organic carbon
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: H. v. H. van der Watt --- Department of Soil Science, Republic of South AfricaThe organic carbon contents of the 0–15-cm and 15–30-cm layers of conventionally tilled, stubble-mulched and no-tilled soils were compared. Samples from four localities in the Transvaal and Orange Free State were analyzed for organic C by means of two methods... -
Suppression of seed germination and early seedling growth by plantation harvest residues
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: A.W. Schumann --- , Republic of South Africa K.M. Little --- , Republic of South Africa N.S. Eccles --- , Republic of South AfricaThe role of forestry plantation residues (leaf and branch) in the suppression of establishment of four weed species (Conyza sumatrensis, Trifolium spp., Echinochloa utilis and Lactica sativa) was investigated. Of the three residue types used, Pinus patula residues were found... -
Quality as a factor influencing the possible utilization of eight exotic legume species as mulches
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: P. Ver Elst --- Department of Agronomy, P.J. Pieterse --- Department of Agronomy,Invasive exotic legumes need to be controlled by amongst others, mechanical control methods. Residues such as twigs and leaves of felled trees can possibly be utilized as a low cost, organic fertilizer. The quality of the organic materials influences their... -
Honeybush (Cyclopia spp.) response to phosphorus fertilisation and mulching
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: M.E. Joubert --- , South Africa P.S. Botma --- , South Africa W. A.G. Kotzé --- , South Africa J. Wooldridge --- , South AfricaHoneybush (Cyclopia spp.) is endemic to the Western- and Eastern Cape where it grows naturally in sandy, acidic, low- phosphorus (P) soils. The effects of different rates of applied P, and of mulches, on the growth of four honeybush species... -
Winter cover crops and fertiliser effects on the weed seed bank in a low-input maize-based conservation agriculture system
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: E Dube --- Department of Agronomy, Faculty of Science and Agriculture, South Africa C Chiduza --- School of Agricultural Sciences, Faculty of Agriculture, Science and Technology, South Africa P Muchaonyerwa --- School of Agricultural, Earth and Environmental Sciences, South Africa M Fanadzo --- Department of Agronomy, Faculty of Science and Agriculture, South Africa TS Mthoko --- Department of Agronomy, Faculty of Science and Agriculture, South AfricaThis study investigated the effects of grazing vetch (Vicia dasycarpa L.) and oat (Avena sativa L.) cover crops and fertiliser on the seed bank of some problematic weeds in a maize-based conservation agriculture system. Soil sampling for seed bank analysis... -
Effects of soil surface management practices on soil and tree parameters in a ‘Cripps Pink’/M7 apple orchard 1. Mineral nutrition
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: John Wooldridge --- Soil and Water Science, South Africa Johan Fourie --- Soil and Water Science, South Africa Marlise E Joubert --- Soil and Water Science, South AfricaEffects on soil, leaf and fruit element concentrations of organic (compost, straw mulch and hand weeding) and integrated (inorganic fertilisers and herbicide usage; IP) soil surface management practices in the tree rows, in combination with weed covers, cover crops and... -
Effects of soil surface management practices on soil and tree parameters in a ‘Cripps Pink’/M7 apple orchard 2. Tree performance and root distribution
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: John Wooldridge --- Soil and Water Science, South Africa Johan Fourie --- Soil and Water Science, South Africa Marlise E Joubert --- Soil and Water Science, South AfricaEffects of integrated production (IP) and organic-acceptable soil surface management practices were investigated in a ‘Cripps Pink’/M7 apple orchard in the Elgin area, South Africa. Work row treatments included cover crops, weeds and straw mulch. In the IP tree rows,... -
The influence of tillage and mulch application on the production of Cenhrus ciliaris
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: CS DannhauserCenchrus ciliaris is a well known planted pasture in the dryer parts of southern Africa and one of the most important species in the Limpopo Province, South Africa. For many years it was believed that this species should be cultivated... -
The effect of mulching and fertilising on growth of over-sown grass species in degraded rangeland in north-eastern Ethiopia
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Kidane Gebremeskel PJ PieterseA study to investigate oversowing of grass species as a restoration strategy in severely degraded rangeland was carried out in the Allaidege rangeland in north-eastern Ethiopia. Locally collected seeds of three grass species (Enteropogon rupestris, Ischaemum afrum and Tragus berteronianus)... -
Relationship between soil alteration index three (AI3), soil organic matter and tree performance in a ‘Cripps Pink’/M7 apple orchard
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: André H Meyer --- Agricultural Research Council–Infruitec-Nietvoorbij, South Africa John Wooldridge --- Agricultural Research Council–Infruitec-Nietvoorbij, South Africa Joanna F Dames --- Department of Biochemistry and Microbiology, South AfricaAlteration index three (AI3), which calculates the balances between three microbially-secreted enzymes, potentially enables differences between soils due to contrasting management practices to be quantified in relative terms. The ability of AI3 to distinguish between apple orchard soils under conventional... -
Variation in urease and β-glucosidase activities with soil depth and root density in a ‘Cripp's Pink’/M7 apple orchard under conventional and organic management
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: André H Meyer --- Agricultural Research Council Infruitec–Nietvoorbij, South Africa John Wooldridge --- Agricultural Research Council Infruitec–Nietvoorbij, South Africa Joanna F Dames --- Department of Biochemistry and Microbiology, South AfricaThe effects of conventional (CON; utilising synthetic fertiliser and herbicide) and organic (ORG; nutrients supplied in compost, weeds controlled with straw mulch) orchard floor management practices on depth-wise variation in urease and β-glucosidase activities in tree-row soils were compared in... -
Growth and yield responses of commercial sugarcane cultivars to mulching in the coastal rainfed region of South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Nkosinathi Nxumalo --- South African Sugarcane Research Institute, South Africa Sanesh Ramburan --- South African Sugarcane Research Institute, South Africa J Martin Steyn --- Department of Plant Production and Soil Science, South AfricaThe perceived negative cultivar responses to mulching has limited the adoption of this practice in the South African sugarcane industry. This study was aimed at evaluating cane yield and quality responses and population dynamics of popular cultivars to mulching in... -
Effect of residue and fertiliser management on soil fertility in a long-term sugarcane trial in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Sandile Mthimkhulu --- South African Sugarcane Research Institute, South Africa Neil Miles --- South African Sugarcane Research Institute, South Africa Rianto van Antwerpen --- South African Sugarcane Research Institute, South Africa Dimpho Elephant --- South African Sugarcane Research Institute, South AfricaUnderstanding the impact of long-term continuous addition of sugarcane residues and fertiliser on soil fertility is important for development of best management practices. The experiment commenced in 1939. The fertility of the 0–10 cm soil layer was affected by the... -
Efficacy and profitability of weed management systems for honeybush in South Africa
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Rayganah Rhoda --- , South Africa Cecilia Bester --- , South Africa Mlamuli Motsa --- , Eswatini Marlise Joubert --- , South Africa Gugu Tshabalala --- , South Africa Candice-Lee Lyons --- , South AfricaWeeds reduce crop productivity through competion for nutrients, water, light and space, and impact negatively on commercial crops. Honeybush tea (Cyclopia spp.) is an industry mainly focused on the organic cultivation of tea, using mechanical weeding control methods. To date,... -
Cover crop performance in an apple orchard and its effect on the macro-elements and carbon levels in a loamy sand
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Johan C Fourie --- , Carolyn L Howell --- , Marde Booyse --- , Kim M Adams --- ,Five treatments were applied in a newly established orchard on a loamy sand near Vyeboom, South Africa. Treatment 1 (T1): chemical control in the tree row from bud break to harvest, with dwarf fescue (Festuca arundinaceae Schreb.) slashed regularly in...