Conservation Agriculture – A Portuguese Case Study

Carvalho, Maria Leonor da Silva; Lourenço, Elloise Rackel Costa

doi:10.1111/jac.12065

Cited by 24 publications

(17 citation statements)

References 5 publications

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“…Sometimes they had experienced consequences of unexpected extreme rainfall. This finding is similar with [27] where the authors identified most climatic variation in rainfall.…”

Section: Climate Changesupporting

confidence: 89%

Adoption of Conservation Agriculture in Bangladesh: Problems and Prospects

Dhar¹,

Islam²,

Ahmed³

2017

WJAR

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The research was conducted to evaluate the problems and prospects of adopting conservation agriculture in Jamalpur and Bogra districts of Bangladesh. A total of 120 farmers (20 from focal and 100 from control group) were surveyed for collecting necessary data and information. A combination of descriptive statistics and mathematical techniques was used to analyze the data. Focal farmers followed the basic principles of conservation agriculture but control farmers continued conventional crop farming practices. Focal farmers were more profitable compared to control farmers in terms of wheat and bean production. Less production due to minimum tillage, difficulties in maintenance, lack of extension service etc. were the major problems faced by the farmers. Knowledge on soil conservation and soil quality improvement, use of organic fertilizer, etc. were found as strengths; management of crop residue, scarcity of cowdung, etc. were found as weaknesses; labor opportunities, market demand, etc. were found as opportunities; and climate change and price fluctuation were found as threats of adopting conservation agriculture. Regular extension contact, arrangement of training programmes and input support are to be ensured by different government and non-government organizations to motivate farmers for adopting conservation agriculture practice.

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“…Sometimes they had experienced consequences of unexpected extreme rainfall. This finding is similar with [27] where the authors identified most climatic variation in rainfall.…”

Section: Climate Changesupporting

confidence: 89%

Adoption of Conservation Agriculture in Bangladesh: Problems and Prospects

Dhar¹,

Islam²,

Ahmed³

2017

WJAR

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“…The adequate availability of fertilizers can be particularly important in areas with inherently low soil fertility where the production of sufficient quantities of crop residue for soil protection is difficult (Giller et al, 2015;Thierfelder et al, 2018). The presence of protectionist mechanisms, such as subsidies for the production of certain commodities, can also hinder adoption as these do not encourage the reduction of production costs and can act to decrease the profitability of CA practices (Carvalho and Lourenco, 2014;Tekle, 2016).…”

Section: Economic Challengesmentioning

confidence: 99%

The Ability of Conservation Agriculture to Conserve Soil Organic Carbon and the Subsequent Impact on Soil Physical, Chemical, and Biological Properties and Yield

Page

Dang

Dalal

2020

Front. Sustain. Food Syst.

214

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Increases in human populations and the emerging challenges of climate change mean that the world's agricultural systems will need to produce more food in an environment that is increasingly variable and where the quality of our natural resource base is declining. One central measure of an agricultural system's capacity to do this is its ability to preserve soil organic carbon (SOC), due to the pivotal role that this plays in maintaining soil physical, chemical, and biological properties and ultimately yield. This narrative review examines the literature published worldwide over the last 30 years to assess the impact of one widely applied agricultural management system, conservation agriculture (CA), on its ability to maintain SOC and the subsequent impacts on soil physical, chemical and biological properties, and yield. While the effects of CA on SOC worldwide are variable, with both increases and decreases observed, in regions where soil and climatic conditions are favorable for biomass production and where the system does not negatively impact yield, then CA can lead to higher amounts of SOC relative to conventionally managed systems, particularly in the surface of the soil profile. Where greater SOC occurs, these are also often accompanied by improvements in soil structure, water infiltration and soil water storage, plant nutrient availability, microbial biomass and diversity, and yield. However, where CA is used in certain environments (e.g., cold, wet environments with poorly drained soils) or where the CA system has not been well-adapted to local conditions, taking into account the specific agronomic, social, and environmental challenges present, then it may not be a successful system of management. Farmers require access to a range of tools and resources to allow them to identify if the principles of CA are likely to lead be appropriate for their situation and well-designed, locally adapted systems to successfully overcome the agronomic, social and economic challenges that can be associated with its use.

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“…In this case, and contrary to what happened in the previous experiment, the Cq value is significantly greater under minimum tillage ( Table 2). Keeping in mind that conservation agriculture is based on no-till, maintenance of crop residues on the soil surface and crop rotation [47,48], these results highlight the need to increase the use of conservation agriculture practices to reduce the incidence of the disease. When a mycotrophic cover crop is used, beside many other benefits, it allows the development of the ERM, that if kept intact, will promptly colonize the following crop.…”

Section: Discussionmentioning

confidence: 99%

Effect of Tillage System and Cover Crop on Maize Mycorrhization and Presence of Magnaporthiopsis maydis

Patanita

Campos

Félix

et al. 2020

Biology

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The sustainability of agriculture requires the adoption of agricultural soil conservation practices with positive impacts on soil quality, which can promote beneficial soil microbiota like arbuscular mycorrhizal fungi (AMF) and its diversity. This study aims to assess the influence of the presence of intact extraradical mycelium as a preferential source of inoculum of the native AMF in order to guarantee a better colonization as well as its possible bioprotective effect against Magnaporthiopsis maydis. In order to vary the available extraradical mycelium, two experiments, with and without cover crop, were carried out, in which two tillage systems and two maize varieties were studied. The capitalization of the benefits, in terms of grain production and M. maydis presence, associated to the cover crop were only achieved with minimum tillage. Therefore, both cultural practices are necessary to reduce the fungus presence, coupling the effect of mycorrhization together with other benefits associated with the cover crop. Although in the absence of a cover crop and using conventional tillage, yields and lower levels of M. maydis are possibly achieved, this system is more dependent on the variety used, does not benefit from the advantages associated with the cover crop, is more expensive, and environmentally unsustainable.

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Conservation Agriculture – A Portuguese Case Study

Cited by 24 publications

References 5 publications

Adoption of Conservation Agriculture in Bangladesh: Problems and Prospects

Adoption of Conservation Agriculture in Bangladesh: Problems and Prospects

The Ability of Conservation Agriculture to Conserve Soil Organic Carbon and the Subsequent Impact on Soil Physical, Chemical, and Biological Properties and Yield

Effect of Tillage System and Cover Crop on Maize Mycorrhization and Presence of Magnaporthiopsis maydis

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