Relating nematode community structure to different kikuyu-ryegrass pasture establishment methods

Swanepoel, Pieter A.; Kapp, Caro; Malan, Antoinette P.; Storey, Sheila G.; Ammann, Sigrun

doi:10.1007/s41348-021-00499-y

Cited by 3 publications

(3 citation statements)

References 38 publications

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“…Even though producers are usually eager to build soil organic matter, reducing tillage is not an option for these crops. Furthermore, for South African potato production systems, producers might have numerous fields equipped with irrigation, but because of water restrictions and a build-up of nematodes and soilborne diseases not all fields can be irrigated every year, thereby reducing the capacity of the soil to build up organic matter (Swanepoel et al 2021). The workshop delegates mentioned examples of land-use strategies that leading farmers follow.…”

Section: Ca In Irrigated Systemsmentioning

confidence: 99%

Aligning Conservation Agriculture among various disciplines in South Africa

Swanepoel

2021

South African Journal of Plant and Soil

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Conservation agriculture (CA) is widely acknowledged as a set of management principles that support soil conservation (Govaerts et al. 2009;Smith et al. 2017;Kassam et al. 2019). The term CA is loosely used among South African farmers, industry experts and academia to refer to any action that has soil-conservation goals. However, this inaccurate reference causes confusion and may lead to misperceptions of CA as simply a sustainable crop-production system. The principles of CA include minimum soil disturbance, protecting the soil with an organic soil cover, and including a diversity of crops, either in crop rotation or association (Hobbs et al. 2008). Management principles can be broadly applicable to many farming systems and crops. In South Africa, CA is used successfully for field crops under rainfed conditions, particularly in smallholder systems but also in commercial and broadacre production systems. The term CA has been less frequently used in reference to systems involving crops grown under irrigation, permanent (i.e. orchards and vineyards) and semi-permanent crops (i.e. sugarcane) or to cultivated pastures. Yet, the management principles of CA are reported to be largely universal and could be applied in most production systems (Kassam et al. 2019).To share and exchange CA research experiences and lessons, and to identify research gaps in the field of CA in South Africa, a workshop was facilitated with a wide range of representatives from across the CA community. The broad objectives of the workshop were to: i) facilitate participants' sharing of information and experiences focusing on lessons learnt with regard to the contribution of CA to sustainable crop production and improved food security; ii) identify key issues in the development, promotion and adoption of CA in commercial and subsistence farming; iii) involve participants' in collective discussion of key challenges faced within CA practices; iv) link the challenges to underlying knowledge gaps and plan collaborative approaches to best address these gaps (in the form of concept notes that might be the basis of future research proposals); and v) promote networking to support the scaling-up of CA in South Africa. In accordance with information gathered from participants in the workshop, this article aims to align approaches to CA among various disciplines in South Africa and outlines a research agenda for CA in South Africa. MethodsA workshop was held in Bloemfontein, South Africa, on 23 January 2019, and attended by approximately 200 delegates from universities and other tertiary educational institutions, research institutions, government, and private companies involved in CA in South Africa. The workshop was structured to have an opening session where the aim and objectives of the workshop were shared. This was followed by eight

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Section: Ca In Irrigated Systemsmentioning

confidence: 99%

Aligning Conservation Agriculture among various disciplines in South Africa

Swanepoel

2021

South African Journal of Plant and Soil

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“…Soil nematodes represent a major component of soil communities in terrestrial ecosystems, and play an important role in regulating nutrient cycling and soil health (Kouser et al, 2021;Li et al, 2021;Swanepoel et al, 2021;Wang et al, 2021). In the past few decades, the rapid development of molecular techniques has the potential to replace traditional morphological analysis (Floyd et al, 2002;Griffiths et al, 2018;Gao et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Database and primer selections affect nematode community composition under different vegetations of Changbai Mountain

Sun

et al. 2022

Soil Ecol. Lett.

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“…If nitrogen helps to the increase of the vegetative mass of grasses (Hendrik et al, 2021), the presence of phosphorus and potassium in the soil causes an increased resistance of the plants to winter frost and diseases (David et al, 2010, Agapie et al al., 2016, Agapie et al, 2018. With a short vegetation period, it is resistant to diseases and pests (Swanepoel et al, 2021). Doses of fertilizers, especially those with nitrogen, can be reduced if the Italian ryegrass follows rotation in the first year after a perennial legume or by growing in mixtures with a legume (Karakurt and Ekiz, 1999, Marian et.al., 2011, Rotar et al, 2016.…”

Section: Introductionmentioning

confidence: 99%

Exteriorization of Quantitative Traits With Influence on Forage Yield in Italian Ryegrass

Bostan¹,

Cojocariu²,

RĂCHIŢEAN³

et al. 2021

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The spread of Italian ryegrass culture worldwide is due to its large yield capacity, superior feed quality and the fact that it is an ideal blending partner. The Italian ryegrass (Lolium multiflorum Lam.) Is a very valuable forage plant with wide possibilities of use in animal feed (green mass, hay, silo) and has a very high capacity to adapt to different types of soils and climates. In this context, the aim of this research is to evaluate the differences between the growth traits and productivity of three varieties of Lolium multiflorum Lam. var. Westerwoldicum, sown in autumn in an area with cold winters. Two alternative tetraploid varieties (Linos and Ivan) and an alternative diploid variety - Sprint (Catalogo-zanandrea-sementi-en.pdf), recommended for green mass and silo, were used as biological material. In order to evaluate the three varieties, the basic green mass feed yield elements (number of tillers, their height and the weight of the bunch) and the green mass yield at the first harvest were taken into account. The results of the research show that the Linos variety recorded the highest weight of the bunch based on the large number of tiller and the height of the tillers. The variations are much larger between the Linos and Ivan varieties based on the number of tillers. The green mass yields of the three Italian ryegrass varieties studied are directly influenced by the values of the yield / bunch traits. Thus, the largest yield of green mass at the first harvest, of 28.9 t.ha-1, was also registered for the Linos variety. This study has a special practical importance, bringing a plus in the technology of cultivation of Italian ryegrass sown in autumn in the conditions of cold winters.

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Relating nematode community structure to different kikuyu-ryegrass pasture establishment methods

Cited by 3 publications

References 38 publications

Aligning Conservation Agriculture among various disciplines in South Africa

Aligning Conservation Agriculture among various disciplines in South Africa

Database and primer selections affect nematode community composition under different vegetations of Changbai Mountain

Exteriorization of Quantitative Traits With Influence on Forage Yield in Italian Ryegrass

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