De l’animal au territoire, regards sur l’efficience de l’azote dans les systèmes bovins laitiers

GODINOT, Oivier; Foray, Sylvain; Lemosquet, Sophie; Delaby, Luc; Edouard, Nadège

doi:10.20870/productions-animales.2022.35.1.5498

Cited by 2 publications

(2 citation statements)

References 52 publications

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“…Comparatively, applying the same dose of organic matter by microdosing and broadcasting would allow the microdose to gain an additional 100% of fertilized area. In the present study, there was no excessive application of nitrogen and hence no negative impacts on the environment [38][39][40]. When compost is applied as top dressing, followed by a slight soil cover, it mixes with the soil and contributes more to the improvement of the nitrogen balance and the sustainability of the system.…”

Section: Sustainability Of the Production Systemmentioning

confidence: 57%

Microdosing of Compost for Sustainable Production of Improved Sorghum in Southern Mali

Guindo

Traoré

Zemadim³

et al. 2022

Agronomy

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The depletion of soil organic matter is one of the major challenges constraining agricultural production in the southern zone of Mali. This study evaluated the effects of compost types, methods, and dose applications on the productivity and sustainability of sorghum. Two types of compost (farmer practice and cotton stems) were applied to sorghum at two rates (microdosing at 2.5 t ha−1 and broadcasting at 5 t ha−1) and evaluated on 30 farmer fields in 2019 and 2020. The treatments used included CPA (cotton stem compost at 5 t ha−1 + 100 kg ha−1 DAP), CPA (cotton stem compost at 2.5 t ha−1 + 100 kg ha−1 DAP), CP (farmer compost at 5 t ha−1 + 100 kg ha−1 DAP), CP (famer compost at 2.5 t ha−1 + 100 kg ha−1 DAP), control (100 kg ha−1 DAP), and control. The results showed that regardless of the compost type, applying a microdose of 2.5 t ha−1 improved the growth rate, plant height, grain yield, and biomass yield by 15%, 18%, 47%, and 27%, respectively, when compared to the control. No statistical difference was observed in the yield of 2061 kg ha−1 between applying compost by microdosing at 2.5 t ha−1 and broadcasting at 5 t ha−1. It can be inferred that the application of compost by microdosing makes it possible to achieve a 100% fertilized surface compared to broadcasting, with a nitrogen use efficiency of more than 55%. The application of compost by microdosing at 2.5 t ha−1 resulted in an economic gain of 334800 XOF ha−1, which was 27% less than that obtained with the application of compost by broadcasting at 5 t ha−1. Conversely, the contribution to the improvement of soil nitrogen stock varied from 12–20% with a microdose of 2.5 t ha−1 compared to 100% for broadcasting compost at 5 t ha−1 per application. Therefore, the availability of cotton stems in the southern zone of Mali presents an opportunity for farmers to implement compost microdose technology to double the fertilized area and improve sorghum productivity.

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Section: Sustainability Of the Production Systemmentioning

confidence: 57%

Microdosing of Compost for Sustainable Production of Improved Sorghum in Southern Mali

Guindo

Traoré

Zemadim³

et al. 2022

Agronomy

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“…This hypothesis justifies a study of the chemical composition of each herbaceous species. Godinot et al (2022) showed that nitrogen levels are always higher in grazed situations at the end of winter. According to them, animals graze on average younger leaves than those observed in protected areas since grazing occurs daily.…”

Section: Effect Of Grazing On the Chemical Composition Of Fallow Fieldsmentioning

confidence: 98%

Effect of grazing on the composition and floristic diversity during fallow at El-Tarf, Algeria

Matallah,

Matallah

2024

RevFacAgron(LUZ)

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In the El-Tarf region, located in northeastern Algeria, fallow lands are frequently used as grazing grounds for sheep flocks, where they are left all day with a significant grazing load. Limited studies conducted to assess the effects of grazing have yielded varied and sometimes contradictory results, thus underscoring the need for reliable local data. The study aims to assess the impact of grazing on the floristic richness, diversity, production, and chemical composition of fallow lands in the El-Tarf region (northeast Algeria). Measurements were taken during the optimal vegetation period from March to June over a period of 2 years (2019 and 2020). The experimental design included a single factor: grazing intensity (no grazing, moderate grazing, and intense grazing). The results indicated that grazing reduced floristic richness and diversity (Maximum Diversity, Shannon and Weaver Index, Evenness Index), but it did not have an effect on coverage. The non-grazed fallow land is richer, hosting 23 herbaceous species distributed among 8 botanical families, with the most represented being Asteraceae (39 %), followed by Poaceae (26 %). The Fabaceae, on the other hand, display a more modest representation, accounting for only 13 %.Grazing also decreased significantly the biomass and total aboveground herbaceous phytomass, with improvements noted in non-grazed conditions, recording values of 3.80 t.DM.ha-1 and 1.77 t.DM.ha-1, respectively. In addition, grazing had a significant impact on chemical composition, with the highest values recorded for moderate grazing, reaching 14.7 % for total nitrogen content and 11.66 % for mineral content.

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De l’animal au territoire, regards sur l’efficience de l’azote dans les systèmes bovins laitiers

Cited by 2 publications

References 52 publications

Microdosing of Compost for Sustainable Production of Improved Sorghum in Southern Mali

Microdosing of Compost for Sustainable Production of Improved Sorghum in Southern Mali

Effect of grazing on the composition and floristic diversity during fallow at El-Tarf, Algeria

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