Mineral fertilizers, organic amendments and crop rotation managements for soil fertility maintenance in the Guinean zone of Burkina Faso (West Africa)

Author(s):  
B.V. Bado ◽  
A. Bationo ◽  
F. Lompo ◽  
M.P. Cescas ◽  
M.P Sedogo
2020 ◽  
Vol 27 ◽  
pp. 00074
Author(s):  
Natalia P. Bakaeva ◽  
Olga L. Saltykova ◽  
Maksim S. Prikazchikov

The paper considers different levels of biologization in agriculture as provided by crop rotation with different fallow types with placement of fertilizers at a level of 40 t/ha, basic soil treatment, leaving straw in the field for all crops of five-field crop rotation and application of mineral fertilizers. High barley yields were obtained through the years of the study. Correlation analysis revealed a direct dependence between total biogenesity of soil and grain yield, which is fully actualized depending on meteorological conditions, varietydependent peculiarities of Povolzhsky 85 barley and agricultural processes applied aimed at increasing biologization of agriculture and protecting soil fertility.


2019 ◽  
Vol 20 (2) ◽  
pp. 144-152
Author(s):  
A. A. Artemjev ◽  
A. M. Guryanov

The article presents the results of studies conducted in 2004-2010 at the experimental plot in the forest-steppe Volga region. The research investigated the impact of traditional (average) and differentiated use of mineral fertilizers in the field crop rotation (winter wheat (reconnaissance sowing) – spring wheat ‒ annual grass – spring barley – bare fallow– winter wheat – spring wheat) on the change of agrochemical properties of leached chernozem. It was established that the six-year use of fertilizers contributed to the improvement of the main indicators of top soil fertility regardless of application technology. On average, in 15 sectors (plots) of each variant, the content of mobile phosphorus per rotation of crop rotation increased with differentiated fertilization by 15.9%, potassium – by 15%, and in the traditional one – by 4.8 and 16.7% respectively, (control of 100.8 and 116.2 mg/kg of soil, respectively). In sectors where no fertilizer was applied, the content of mobile elements decreased by 2-7%. The nitrogen content in the soil directly depended on the timing of sampling and the amount of moisture in the soil, so it was difficult to track its change. The difference in the accumulation of mineral nitrogen between the technologies of fertilizer application was not observed. For organic matter in all variants of the experience over the years of research there was a decrease in the indicator. This was more noticeable in the control, where the value decreased by 2.7%. Here, the value of soil acidity increased by 0.12 units and became 4.7. In variants with fertilizers soil acidity remained the same (4.6-4.7). In general, the differentiated use of mineral fertilizers did not have a negative influence on the agrochemical composition of leached chernozem. There was a gradual equalization of soil fertility due to the residual amounts of phosphorus and potassium on low-fertile plots and some reduction of mobile elements in zones with high content.


2021 ◽  
Author(s):  
Anke Neumeier ◽  
Julien Guigue ◽  
Yaser Ostovari ◽  
Andreas Muskolus ◽  
Henk Martens ◽  
...  

<p>Sustainable agricultural practices aim to ensure the rebuilt of soil organic carbon (SOC) stocks and to sustain soil fertility. One of the levers is the use of carbon and nutrient inputs in the form of organic amendments, such as farmyard manure, slurry and biogas digestate. These organic fertilizers represent a promising alternative to the mineral fertilizers, which are mainly made from non-renewable resources. The use mineral fertilizers is indeed associated with an excessive use of natural resources and a loss of biodiversity. The effect of organic amendments compared with traditional mineral fertilizers on SOC stocks and soil fertility are uncertain in the longer-term. We aimed at investigating the effects of mineral and organic fertilizers (i.e., manure, pig slurry and biogas digestate) on topsoil and subsoil biogeochemistry, after eight years of application. For this purpose, we sampled soil cores down to a depth of one meter in a randomized field experiment in Germany, running since 2011. A full-profile assessment of the carbon and nitrogen distribution, stability and bioavailability was achieved using a combination of classical bulk physico-chemical analyses (e.g., SOC and nitrogen contents, texture, pH, bulk density) and state-of-the-art imaging techniques. Selected samples were analysed for aggregate size distribution, as well as organic carbon and nitrogen contents and allocation within these aggregates. Further, undisturbed core-samples were scanned using a hyperspectral camera in the Vis-NIR range to reveal hotspots of carbon storage at the soil profile scale. Soil carbon distribution was predicted as a function of spectral response, using a variety of machine learning approaches. The application of organic fertilizers (whatever their nature) resulted in higher SOC contents in the first 10 cm, as compared to the control and the mineral fertilizer treatments. The SOC stocks were + 21-33 % higher in the soil treated with organic fertilizers as compared to the control treatment. The application of mineral fertilizer or digestate, as compared to the control, resulted in higher relative amount of microaggregates (versus macroaggregates) (+ 19-40 %) in the soil down to 80 cm. These results will provide essential information to develop management strategies that increase nutrient recycling as well as SOC stocks.</p>


2020 ◽  
Vol 17 ◽  
pp. 00255
Author(s):  
Rafil C. Shakirov ◽  
Zakirzhan M. Bikhmuhammetov ◽  
Fidail F. Khisamiev

The article discusses the effectiveness of various types and norms of organic fertilizers in improving soil fertility, productivity and crop production quality, as well as crop rotation productivity in a comparative aspect with the estimated norms of mineral fertilizers for obtaining the planned yield. Various norms of thermally dried granulated chicken manure were studied, its suitability as an environmentally safe complex organic fertilizer and its effectiveness in increasing yields, produce quality, soil fertility and crop rotation productivity compared with traditional manure, buckwheat green manure crop, mineral fertilizers and natural nutritional background were established. The economic efficiency of the use of various types of fertilizers in crop rotation is determined and its increase to a profitability level of 74–222 % depending on the type and norms of fertilizers is established.


2019 ◽  
pp. 21-32
Author(s):  
E. Medvedev

Recently, negative processes have been spreading in Ukraine related to the deterioration of the economic situation, the rapid increase in the prices of mineral fertilizers and the limitation of their use, the reduction in the volume of traditional organic fertilizers, and the replacement of traditional tillage on systems with moldboard-free and other resource-saving ones. The consequences of this is loss of soil fertility. The global climate changes observed in Ukraine, which directly affect the vegetation and soil formation processes contributes to the consequences as well. Consequently, there is a need for further and more detailed study of the impact of various tillage systems and fertilizers on soil fertility to prevent negative processes in it and to develop measures for adapting agriculture in accordance with climatic and socio-economic realities. Studying the influence of primary processing methods and fertilizers on the fertility indicators of common black soil in a field rotation link: winter wheat after corn MVR (milk-wax ripeness) – peas – winter wheat in the Northern Steppe of Ukraine to prevent negative phenomena associated with modern soil formation processes, and, in the future, the development of scientifically based recommendations on the cultivation of these crops in the new socio-economic and climatic conditions. The studied methods for treating ordinary heavy loamy chernozem in the field rotation link: winter wheat on corn MVR – peas – winter wheat on the background of dump plowing for corn in the Northern Steppe of Ukraine have a different effect on its nutritional regime. The treatment, based on loosening without dump, improves the agrochemical parameters of the arable layer, contributes to an increase in the amount of nitrate nitrogen, mobile phosphorus and exchange potassium in the soil layer of 0-30 cm compared to plowing. Background plowing for maize in crop rotation reduces drastic differentiation by nutrients by soil profile. The use of mineral fertilizers (recommended in the region: for peas – N45P35K15, winter wheat – N60P60K30; calculated for the planned crop: respectively, N50P30K20 and N90P80K70) contributes to an increase in the content of nitrate nitrogen, mobile phosphorus and exchange potassium in the 0-30 cm layer in the studied options and increase crop productivity. Changes in the agrochemical parameters of the soil did not result in the appearance of a significant difference in their yield on the treatment options. Key words: soil, processing, fertilizers, nitrate nitrogen, mobile phosphorus, exchange potassium, crop rotation.


2021 ◽  
Vol 51 (2) ◽  
pp. 13-21
Author(s):  
N. G. Pilipenko ◽  
O. T. Andreeva ◽  
L. P. Sidorova ◽  
N. Yu. Kharchenko

The results of the study on the comparative assessment of different tillage methods in the field crop rotation with different levels of mineral nutrition (N30P30 and N60P30 kg of active ingredient/ ha) are presented. The experiment was carried out on low-humus low-carbonate chernozem of the forest-steppe zone of Eastern Trans-Baikal Territory in 2012–2014. The zoned variety of Buryatskaya-79 spring wheat, and Metis oat variety were used for sowing. Low-cost methods of soil tillage were studied, providing for the preservation and improvement of soil fertility, an increase in the productivity of grain and fodder crops, and a decrease in material and energy costs. Replacement of the basic tillage with a PN-4-35 plow with a ring roller in the third and fourth crop rotation fields by surface tillage with a Stepnyak-7.4 cultivator and direct sowing on the stubble with a PPM Ob4-ZT seeder when applying mineral fertilizers at a rate of N60P30 kg of active ingredient/ha had a positive effect on the condition of the soil. The following indicators of soil fertility were achieved: structural coefficient 1.28–1.38, organic matter content 3.15–3.33%, productive moisture content in the 0–50 cm layer 29.2–31.8 mm, the release of carbon dioxide 1.810–1.969 kg per 1 hour, the content of Р2О5 in the 0–20 cm layer 71–96 mg/kg of soil, the content of K2O – 57–82 mg/kg of soil. An increase in the yield of oat grain of 0.16–0.21 t/ha, the green mass of annual grasses of 3.44.0 t/ha, the collection of feed units of 0.32–0.34 t/ha, a reduction in the cost of fuel and lubricants by 31.2-36.4%, and an increase in profitability by 25.0–40.3% were achieved.


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