Department of Agronomy
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The influence of zinc content on wheat seed quality and vigour
(Stellenbosch : Stellenbosch University, 2021-12)ENGLISH ABSTRACT: It is the objective of every farmer to obtain high yields and therefore the use of good quality seeds is of importance. Most soils that support wheat cultivation are zinc (Zn) deficient. Biofortification ... -
Nitrogen fertilizer management strategies for canola (Brassica napus L.) under conservation agriculture practices in South Africa
(Stellenbosch : Stellenbosch University, 2021-12)ENGLISH ABSTRACT: Nitrogen fertilizer guidelines for canola under conservation agriculture (CA) should be refined to account for production system evolution, as current guidelines may result in over-fertilization ... -
Seed-drill opener type and crop residue load affect canola establishment, but only residue load affects yield
(American Society of Agronomy, 2019)Core Ideas Canola establishment can be affected by the residues of the previous crop. Different planting tools may handle crop residue differently. Tine and disc furrow openers at different residue loads were tested. Canola ... -
Canola is injured by in‐row nitrogen placement associated with disc openers, but not by tine openers
(Crop Science Society of America, 2020)Seed drills are used in no‐tillage systems to place seed directly in soil. Various furrow openers exist, each with unique seed and fertilizer placement characteristics, particularly positioning of fertilizer in relation ... -
A prospectus for sustainability of rainfed maize production systems in South Africa
(Crop Science Society of America, 2020)The rainfed maize (Zea mays L.) production systems of South Africa require an integrated approach to use the limited soil available water more efficiently, and to increase system productivity and sustainability. The soils ... -
A comparison of experimental designs for cultivar evaluations
(Taylor and Francis, 2020)Spatial heterogeneity and the lack of clear or significant treatment responses in agricultural field experiments complicates recommending the most suitable cultivar(s) to producers for a specific area. Increased attention ... -
Use of biostimulants to assess the production of the underutilised legume, Bambara groundnut
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: Underutilised crops are an important part of local diets but have not been fully adopted in modern agriculture. Often, they are cultivated in marginal lands with low, if any, nutrients. The need for ... -
Seed viability versus seed vigour of canola (Brassica napus L.) cultivars in South Africa and the impact on establishment
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: Laboratory, greenhouse and field trials were conducted in 2020 to compare the effectiveness of general seed quality parameters and certain seed vigour parameters to the actual field establishment success ... -
Crop response in the Western Cape of South Africa to liming soil under no-tillage and following once-off tillage in a no-tillage regime
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: Soil acidity, and the stratification thereof, was found throughout the Western Cape Province. Soil acidity is especially prevalent in the Swartland, where 19.3% of soils in this region have been found to ... -
Wheat response to arbuscular mycorrhizal fungi application in the Western Cape
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: Wheat (Triticum aestivum) is the main cereal crop being planted in the Western Cape of South Africa and is also accounts for over 40% of the world’s cereal. Wheat can be grown under a variety of environmental ... -
Physical and allelopathic effects of crop residue on wheat, barley and canola production
(Stellenbosch : Stellenbosch UniversityStellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: Retention of crop residue has many benefits such as moisture conservation, improvement of soil health and reduction in soil erosion. Residue retention together with no-tillage and crop diversification ... -
Liming strategies for barley and canola production under no-tillage.
(Stellenbosch : Stellenbosch University, 2021-03)ENGLISH ABSTRACT: The slow movement of lime in soil combined with no-tillage practices that restricts the incorporation of surface broadcast lime deeper into the soil has led to an increase in soil acid stratification ... -
Extent of soil acidity in no-tillage systems in the Western Cape Province of South Africa
(MDPI, 2020)Roughly 90% of farmers in the Western Cape Province of South Africa have converted to no-tillage systems to improve the efficiency of crop production. Implementation of no-tillage restricts the mixing of soil amendments, ... -
Benefits are limited with high nitrogen fertiliser rates in kikuyu-ryegrass pasture systems
(MDPI, 2020)Nitrogen (N) fertiliser is applied to pastures in dairy farming systems to ensure productivity, but it is an expensive input that could be damaging to the environment if used excessively. In the southern Cape region of ... -
Developing management strategies to support sustainable production of lucerne in long-rotation cropping systems
(Stellenbosch -- Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Lucerne (Medicago sativa L.) forms part of long-rotation cropping systems integrated with livestock in the southern Cape of South Africa. The lucerne phase is five to seven years long, followed by five ... -
Factors that have an influence on splitting of malting spring barley (Hordeum vulgare L.)
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: In South Africa barley (Hordeum vulgare L.) is the second most produced small grain crop, where most of the barley is used by the beer-brewery industry for malting purposes. The Southern Cape (dryland) ... -
New perspectives on plant population and row spacing of rainfed maize
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Recent maize grain yield increases are attributed to genetic advances and changes in soil and crop management practices, including no-tillage (NT) and additional conservation agriculture (CA) practices. ... -
The influence of seed-drill choice on soil physical properties and crop performance in a semi-arid production region of South Africa
(Stellenbosch : Stellenbosch University, 2020-03)ENGLISH ABSTRACT: Producers following conservation agriculture principles rely on seed-drill equipment that place seed directly in the soil. Most producers are currently using tine openers to establish their crops but the ... -
Vulnerability, institutional arrangements and the adaptation choices made by farmers in the Western Cape of South Africa
(Taylor & Francis, 2019)From 2015 to 2018, South Africa suffered from the worst drought since 1904. Climate change is predicted to increase both the frequency and intensity of droughts in parts of South Africa. In this light it is evident that ... -
Narrow rows and high maize plant population improve water use and grain yield under conservation agriculture
(American Society of Agronomy, 2020-03-11)The relationship between maize (Zea mays L.) population density and grain yield is influenced by soil and crop management strategies, including Conservation Agriculture (CA). Yet little is known about the response of maize ...
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