Effect of tillage on some soil properties, plant development and yield of spring wheat (Triticum aestivum L.) in stony soil

Agenbag, G. A.; Maree, P.C.J.

doi:10.1016/0167-1987(91)90008-l

Cited by 26 publications

(18 citation statements)

References 17 publications

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“…Lower water storage capacity of soils managed with more intensive tillage has been previously observed (Blevins et al, 1971;Agenbag and Maree, 1991;Pagliai et al, 1998;Rasmussen, 1999), and is, in most cases, attributed both to an intensification of water evaporation process, due to the reduced presence of crop residues at soil surface, and to a deterioration of soil structure. In our study, plots tilled with MT and RS had greater content of pores holding water and a lower content of macropores, as well as increased aggregate structure stability compared to plots under SP and DP (Pagliai et al, 1998).…”

Section: Discussionmentioning

confidence: 78%

Nitrogen and phosphorous in a loam soil of central Italy as affected by 6 years of different tillage systems

Papini¹,

Valboa²,

Piovanelli³

et al. 2007

Soil and Tillage Research

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Section: Discussionmentioning

confidence: 78%

Nitrogen and phosphorous in a loam soil of central Italy as affected by 6 years of different tillage systems

Papini¹,

Valboa²,

Piovanelli³

et al. 2007

Soil and Tillage Research

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“…Grain yield of no-till wheat compared unfavourably with conventional tillage in the beginning of the experiment, but gradually increased and compared favourably after seven seasons (Agenbag & Maree, 1991). These higher yields were attributed to more vigorous growth of the crop on no-till plots, probably as a result of better nitrogen supply to the plants.…”

Section: Cultivationmentioning

confidence: 83%

An overview of the context and scope of wheat (Triticum aestivum) research in South Africa from 1983 to 2008

Smit¹,

Tolmay²,

Barnard³

et al. 2010

South African Journal of Plant and Soil

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The domestic requirement for wheat in South Africa is approximately 2.8 million tons and annually the shortfall on local production is imported to meet the demand. During the past 25 years two distinct wheat marketing mechanisms characterised the wheat industry, impacting significantly on both research and industry. In 1996 the single channel marketing system through the Wheat Board made way for a liberal marketing environment in which market forces of supply and demand determine price. This refocused most research activities on factors to lower input costs and risks, while increasing the profitability of wheat production. Significant challenges were experienced with much stricter milling and baking quality requirements impacting on not only the development of adapted wheat cultivars for South African conditions, but also on fertiliser and cultivar recommendations, as well as production practices. Minimum tillage, preharvest sprouting, as well as the threat of Russian wheat aphid and stripe rust were some of the pertinent challenges faced during this time. Significant scientific breakthroughs of international importance were made with regard to the physiological and biochemical nature of insect resistance and plant defence as well as the transfer of resistance genes from alien species. This review provides an overview of the most pertinent wheat research undertaken from 1983 to 2008.

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“…Kirkegaard (I 995) on the other hand, showed that the overall effect of tillage systems on wheat yields are small, while L6pez-Fando & Almendros (1995) as well as Unger (1994) suggested that NT Iiad little or no effect on crop parameters in semi-arid environments. Results of Agenbag & Maree (1988;1991) showed that the yield of spring wheat in shallow, stony soil in Mediterranean-type climates is reduced if NT is applied. This response is attributed to higher soil cone resistance which reduced root growth, less mineral-N in the soil at seeding and poor plant establishment.…”

Section: Introductionmentioning

confidence: 99%

Effect of soil tillage, crop rotation and nitrogen application rates on grain yield of spring wheat (Triticum aestivum L.) in the Swartland wheat producing area of the Republic of South Africa

2003

South African Journal of Plant and Soil

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Studies on spring wheat yield components were conducted during the 2000 and 2001 growing seasons only, while grain yield responses to tillage, crop rotation and N rates during these years were compared to the mean yield for the years 1992, 1994, 1996 and 1998 at Langgewens Experimental Farm in the Western Cape as part of a long-term tillage and crop rotation trial. Four tillage methods, namely conventional tillage (CT), tine tillage (TT), minimum tillage (MT), and no-tillage (NT) were compared. Crop rotation systems used were continuous wheat (WW) and wheaUlupin/wheaUcanola (WLWC). Three rates of N fertilisers (60, 100 and 140 kg N ha -1 ) were applied. Tillage methods had a significant effect on the number of spikes m-2 , spikelets per spike and number of kernels per spike in both the 2000 and 2001 growing seasons. Thousand kernel mass was not sig-. nificantly affected by different tillage methods in both seasons. Mean grain yield for the years 1992, 1994, 1996 and 1998 did not differ Significantly as a result of different tillage methods, but differences due to tillage methods were found in both the 2000 and 2001 growing seasons. Crop rotation had no significant effect on the mentioned yield components. Significantly higher mean yield for the years 1992, 1994, 1996 and 1998 were produced when wheat was rotated with lupins and canola (WLWC) compared to monoculture wheat (WW). Application of different rates of N had no Significant effect on the number of spikes m-2 , number of spikelets per spike and 1000-kernel mass in both growing seasons. While higher rates of N increased the number of kernels per spike in 2001 growing season, no significant differences were observed .between different N rates in the dry seasori (2000) and the results even indicated a decrease in yield with increasing N rates in 2000. Higher grain yields were obtained by application of higher rates of N fertiliser during the wet season 2001, but significant tillage x crop rotation and tillage x nitrogen interaction for the mean grain yield during the 1992-1998 period indicated that yield responses to tillage were related to soil conditions. 7

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Effect of tillage on some soil properties, plant development and yield of spring wheat (Triticum aestivum L.) in stony soil

Cited by 26 publications

References 17 publications

Nitrogen and phosphorous in a loam soil of central Italy as affected by 6 years of different tillage systems

Nitrogen and phosphorous in a loam soil of central Italy as affected by 6 years of different tillage systems

An overview of the context and scope of wheat (Triticum aestivum) research in South Africa from 1983 to 2008

Effect of soil tillage, crop rotation and nitrogen application rates on grain yield of spring wheat (Triticum aestivum L.) in the Swartland wheat producing area of the Republic of South Africa

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