Seeding openers and slot shape.

Baker, C.J.; Saxton, K. E.; Ritchie, W. R.; Chamen, W. C. T.; Reicosky, D. C.; Ribeiro, M. F. S.; Justice, Scott; Hobbs, Philip C. D.

doi:10.1079/9781845931162.0034

Cited by 6 publications

(7 citation statements)

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“…5a). They have low draught requirements, resulting in the possibility to use up to six openers with no need for extra weight to penetrate the ground (Justice et al 2004;Baker 2007), but tend to disturb large volumes of soil, incorporate a high percentage of crop residues (making them no longer available as surface mulch), and cannot be used in rocky soils (Baker 2007). At least two companies manufacture rotary strip-tillage seeders on a commercial basis, one in China (www.chinalyjx.com/en) and one in India (www.…”

Section: Decreasing Power Demand Through Power Saving Technologiesmentioning

confidence: 99%

Re-examining appropriate mechanization in Eastern and Southern Africa: two-wheel tractors, conservation agriculture, and private sector involvement

Baudron

Sims²,

Justice³

et al. 2015

Food Sec.

137

177

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The need for sustainable intensification in Eastern and Southern Africa (ESA) is widely recognized as a requirement to achieve food security with minimum negative social and environmental consequences. In current Research & Development programs, much emphasis is placed on increasing the efficiency with which land, water and nutrients are used, whereas farm power appears to be a 'forgotten resource'. This is a major concern when farm power in ESA countries is declining due to the collapse of most tractor hire schemes, the decline in number of draught animals and the growing shortage of human labour. A consequence of low levels of farm mechanization is high labour drudgery, which makes farming unattractive to the youth and disproportionally affects women. Undoubtedly, sustainable intensification in ESA will require an improvement in access to farm power. In this paper, we suggest this can be achieved through the use of small, multipurpose and inexpensive power sources such as two-wheel tractors (2WTs) coupled with the promotion of energy saving technologies such as conservation agriculture (CA), whilst ensuring the profitability for farmers, service providers and other private sector actors in the supply chain. We argue that appropriate mechanization in Africa, a paradigm largely abandoned three decades ago, may be re-examined through the combination of these three elements.

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Section: Decreasing Power Demand Through Power Saving Technologiesmentioning

confidence: 99%

Re-examining appropriate mechanization in Eastern and Southern Africa: two-wheel tractors, conservation agriculture, and private sector involvement

Baudron

Sims²,

Justice³

et al. 2015

Food Sec.

137

177

View full text Add to dashboard Cite

show abstract

“…Poor crop emergence is often a result of unfavorable seed placement, which leaves the seed exposed or embedded in hairpinned residue, resulting in reduced crop emergence in dry conditions due to poor seed-soil contact (Baker and Saxton, 2007). This can be avoided with the seeding technology of the inverted T-cross slot opener, which places the seed into horizontal slots below the residue covered soil surface, creating water vapor rich conditions that favorably affect germination (Baker, 2007;Wuest, 2002).…”

Section: Introductionmentioning

confidence: 98%

Evaluation of monocropped and intercropped grain legumes for cover cropping in no-tillage and reduced tillage organic agriculture

Rühlemann

Schmidtke

2015

European Journal of Agronomy

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“…facilitate smooth residue flow. Keeping soil disturbance to a minimum should always be the aim and the cross-slot opener achieves this by cutting through residue with a vertical disc and delivering seed on one side and fertilizer to the other in horizontal slots produced by inclined lateral wings [28]. Rice residue is notoriously difficult to cut with vertical discs and one method to deal with heavy residue situations is by lifting the residue with rotating flail-blades before sowing into the cleared surface and depositing the mulch back on top of the seeded soil.…”

Section: Seeders and Plantersmentioning

confidence: 99%

“…In all cases where it is necessary to cut through surface vegetation, a vertical disc preceding the slot opener will usually facilitate smooth residue flow. Keeping soil disturbance to a minimum should always be the aim and the cross-slot opener achieves this by cutting through residue with a vertical disc and delivering seed on one side and fertilizer to the other in horizontal slots produced by inclined lateral wings [28].…”

Section: Seeders and Plantersmentioning

confidence: 99%

Sustainable Agricultural Mechanization for Smallholders: What Is It and How Can We Implement It?

Sims¹,

Kienzle²

2017

Agriculture

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Smallholder farmers are the main producers of the world's food and they will have to increase production by up to 100 percent by 2050 to feed the growing population. This must be achieved while preserving natural resources and that is why sustainable agricultural mechanization (SAM) will be fundamental to the process. SAM is climate-smart and environmentally benign and essentially means no-till conservation agriculture, which requires specific mechanization inputs. Principally, these are seeders and planters capable of penetrating soil surface vegetative cover to deposit seed and fertilizer at the required depth and spacing; and equipment for management of cover crops and weeds. Mechanization is required not only for crop production, but also for processing and along the entire value chain. Mechanization inputs are usually expensive and so specialist service provision will be the indicated way forward. This will need collaboration from both the private and public sectors and will involve public-private partnerships to be developed in one form or another. Given the poor track record of public sector mechanization provision, the delivery of SAM should be firmly in the hands of the private sector that should be committed to SAM principles or otherwise be incentivized to the concept through smart subsidies. Improved information flows via smallholder farmer-friendly innovation platforms; and continuing development and testing of SAM technologies via regional centres of excellence will both be required-especially for sub-Saharan Africa.

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Seeding openers and slot shape.

Cited by 6 publications

References 0 publications

Re-examining appropriate mechanization in Eastern and Southern Africa: two-wheel tractors, conservation agriculture, and private sector involvement

Re-examining appropriate mechanization in Eastern and Southern Africa: two-wheel tractors, conservation agriculture, and private sector involvement

Evaluation of monocropped and intercropped grain legumes for cover cropping in no-tillage and reduced tillage organic agriculture

Sustainable Agricultural Mechanization for Smallholders: What Is It and How Can We Implement It?

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