https://orcid.org/0000-0003-2021-5343
References
- Ahmad E, Ghassemzadeh HR, Moghaddam M, Kim KU. 2008. Development of a precision seed drill for oilseed rape. Turkish Journal of Agriculture and Forestry 32: 451–458.
- Barreiro P, Dias S, Garrido M, Conceic LA, Valero C. 2016. A partial study of vertical distribution of conventional no-till seeders and spatial variability of seed depth placement of maize in the Alentejo region, Portugal. Precision Agric 17: 36–52.
- Celik A, Ozturk I, Way TR. 2007. Effects of various planters on emergence and seed distribution uniformity of sunflower. Applied Engineering in Agriculture 23: 57–61.
- Chan, K.Y., Mead, J.A., Roberts, W.P., 1987. Poor Early Growth of Wheat Under Direct Drilling. Austr J Agric Res. 38: 791–800.
- Chaudhry AD, Baker CJ. 1988. Barley seedling establishment by direct drilling in a wet soil. 1. Effects of Openers Under Simulated Rainfall and High Water-Table Conditions. Soil and Tillage Research 11: 43–61.
- Chaudhuri D. 2001. Performance evaluation of various types of furrow openers on seed drills - A review. Journal of Agricultural and Engineering Research 79: 125–137.
- Gan Y, Stobbe EH, Moes J. 1992. Relative date of wheat seedling emergence and its impact on grain yield. Crop Science 32: 1275–1281.
- Haarhoff SJ, Kotzé TN, Swanepoel PA. 2020. A prospectus for sustainability of rainfed maize production systems in South Africa. Crop Science 60: 14–28.
- Håkansson I, Arvidsson J, Keller T, Rydberg T. 2011. Effects of seedbed properties on crop emergence 1. Temporal effects of temperature and sowing depth in seedbeds with favourable properties. Acta Agriculturae Scandinavica, Section B – Soil; Plant Science 64L 458–468.
- Harker KN, O’Donovan JT, Blackshaw RE, Johnson EN, Lafond GP, May WE. 2012. Seeding depth and seeding speed effects on no-till canola emergence, maturity, yield and seed quality. Canadian Journal of Plant Science 92: 795–802.
- Haruna SI, Nkongolo NV, 2015. Effects of tillage, rotation and cover crop on the physical properties of a silt-loam soil. International Agrophysics 29: 137–145.
- Karayel D, Ozmerzi A. 2008. Evaluation of Three Depth-Control Components on Seed Placement Accuracy and Emergence for a Precision Planter. Applied Engineering in Agriculture 24: 271–276.
- Liu W, Tollenaar M, Stewart G, Deen W. 2004. Impact of planter type, planting speed, and tillage on stand uniformity and yield of corn. Agronomy Journal 96: 1668–1672.
- Loeppky H, Lafond GP, Fowler DB. 1989. Seeding Depth in Relation to Plant Development, Winter Survival, and Yield of No-Till Winter Wheat. Agronomy for Sustainable Development 81: 125–129.
- MacLaren C, Labuschagne J, Swanepoel PA. 2021. Tillage practices affect weeds differently in monoculture vs. crop rotation. Soil and Tillage Research 205:104795.
- Nasr HM, Selles F. 1995. Seedling emergence as influenced by aggregate size, bulk density, and penetration resistance of the seedbed. Soil and Tillage Research 34: 61–76.
- Nielsen SK, Munkholm LJ, Lamandé M, Nørremark M, Edwards GTC, Green O. 2018. Seed drill depth control system for precision seeding. Computers and Electronics in Agriculture 144: 174–180.
- Pittelkow CM, Linquist BA, Lundy ME, Liang X, van Groenigen KJ, Lee J, van Gestel N, Six J, Venterea RT, van Kessel C. 2015. When does no-till yield more? A global meta-analysis. Field Crops Research 183: 156–168.
- Saul H, Booyse M, Swanepoel PA. 2020. A comparison of experimental designs for cultivar evaluations. South African Journal of Plant and Soil 37(2): 144–151.
- Swanepoel PA. 2021. Aligning conservation agriculture among various disciplines in South Africa. South African Journal of Plant and Soil 38(3): 185–195.
- Swanepoel PA, Agenbag GA, Strauss JA. 2018. Considering soil quality when comparing disc and tine seed-drill openers for establishing wheat. South African Journal of Plant and Soil 35(4): 317–320.
- Swanepoel PA, le Roux PJG, Agenbag GA, Strauss JA, MacLaren C. 2019. Seed-Drill Opener Type and Crop Residue Load Affect Canola Establishment, but Only Residue Load Affects Yield. Agronomy Journal 111: 1–8.
- Swanepoel PA, Labuschagne J. 2020. Canola is injured by in-row nitrogen placement associated with disc openers, but not by tine openers. Crop Science 60: 466–474.
- TIBCO Software. 2018. Statistica (data analysis software system), Version 13.3 TIBCO Software, Palo Alto CA.
- Van den Putte A, Govers G, Diels J, Gillijns K, Demuzere M. 2010. Assessing the effect of soil tillage on crop growth: A meta-regression analysis on European crop yields under conservation agriculture. European Journal of Agronomy 33: 231–241.