Influence of irrigation and fertilizer rate on changing the nutritional regime of mixed crops (sorghum and pea) soil on stubble

Relevance. The article quotes questions of the influence of fertilizer rates and the number of irrigations on the change in the nutrient regime of the soil when growing mixed crops of pea and sorgho in the conditions of the Karabakh zone of Azerbaijan. In this regard, one of the main issues considered was the development on a scientific and practical basis of the nature of changes in the nutrient regime of the soil and the effect of optimal fertilizer rates and the number of irrigations on crop yields in mixed crops in long-irrigated gray meadow soils.Methods. To study the effect of irrigation and fertilizer rates in mixed crops on changes in the nutrient regime of the soil, soil samples were taken from two soil layers (0-30 and 30-60 cm) after cutting. In the soil samples taken, compounds of nitrogen, phosphorus and potassium that are readily absorbed by plants were analyzed.Results. Analysis of soil samples shows that the application of mineral and organic fertilizers against the background of different amounts of irrigation fundamentally affects the effective fertility of the soil. In general, in the phase of flowering and panicle formation under the influence of irrigation and fertilizers, effective soil fertility was observed compared to the control variant without fertilizing, which remained at a sufficient amount. And this indicates that the plant showed a high demand for this nutrient. The decrease in the number of nutrients in the panicle formation phase indicates its connection with the removal of high yields. Analysis of soil samples during the study shows that the introduction of mineral and organic fertilizers against a background of varying amounts of irrigation has fundamentally affected the effective soil fertility.

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Assessment of Factors that Limit Optimal Use of Organic Fertilizers in Subsistence Food Production in Vihiga County, Kenya

International Journal of Environment and Climate Change ◽

10.9734/ijecc/2021/v11i1130545 ◽

2021 ◽

pp. 302-307

Author(s):

Mary J. Kipsat ◽

D. O. Osewe ◽

Mose Phoebe Bwari

Keyword(s):

Soil Fertility ◽

Organic Materials ◽

Crop Yields ◽

Organic Fertilizer ◽

Organic Fertilizers ◽

Primary Data ◽

High Yield ◽

Research Institutions ◽

Significant Difference ◽

High Yields

In the face of skyrocketing prices of inorganic fertilizers, organic materials are considered the alternative sources of fertilizers. Research institutions have over the years succeeded in demonstrating high yield responses to recommended usage of organic fertilizers. Furthermore, organic fertilizer (biofertilizers) is a vital component of sustainable agriculture. The sound management of organic fertilization must attempt to ensure both an enhanced and safeguarded environment. Most Farmers in Vihiga County have adopted use of organic fertilizers. Despite this, crop yields remain low in farmers’ fields due to low soil fertility and inability of farmers to optimally use organic fertilizers. Researchers often use optimal organic materials recording high yields in experimental and farm demonstration fields. Little or no research has been done to determine why farmers still record low yields despite a lot of extension outreaches to promote available organic matter technology packages in the study area. This paper reports findings of a study carried out to determine factors that limit optimal use of organic fertilizer by farmers in Vihiga County, Kenya. The objective of the study was to compare organic fertilizer usage in farmers’ field with optimal (recommended) rates to determine if the usage were significantly different. This was aimed at providing advice based on empirical evidence to farmers on whether there is need to improve usages of organic fertilizer and to determine if low intensity of organic fertilizer was a possible cause of recorded low yields in farmers’ fields. Purposive sampling was used to select farmers who were using organic fertilizer for soil fertility. A total of 120 farmers were selected to provide data needed for the study. Primary data was collected using questionnaires and data was analyzed using descriptive statistic (t-test). The results of the analysis indicated a significant difference in the usage between what farmers applied and what was recommended by research. Usages of organic fertilizer among the sampled farmers were much lower than the recommended levels explaining the low maize yields among farmers in the study area. The study rejected the hypothesis that the farmers’ usages of organic fertilizer was not statistically significant different from that recommended by research institutions. This is because average usage of organic fertilizer of 320.3 kg/ha was significantly below those recommended by researcher of 5ton/ha (at 99% usage. Farmers must follow appropriate promoted technology recommendations. The study recommended promotion of organic fertilizer. Farmers should be sensitized on the need to bridge the gap between the current and the recommended usage for them to realize the benefits of organic fertilizer.

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Evaluation De La Performance Des Pratiques De Gestion De La Fertilite Des Sols Dans Le Bassin De La Riviere Okpara Au Benin

European Scientific Journal ESJ ◽

10.19044/esj.2016.v12n33p370 ◽

2016 ◽

Vol 12 (33) ◽

pp. 370

Author(s):

M.A. Akpo ◽

A. Saidou ◽

I. Balogoun ◽

I. Yabi ◽

L.B. Bio Bigou

Keyword(s):

Soil Fertility ◽

Management Practices ◽

Agricultural Land ◽

Crop Yields ◽

Maize Yield ◽

Organic Fertilizers ◽

Cultural Groups ◽

Soil Fertility Management ◽

Fertility Management ◽

Yield Level

A good management of agricultural land based on scientific knowledge and farmer indigenuous knowledge is necessary to ensure sustainable agricultural production. Our research aims to evaluate the performance of farmers' strategies and improved soil fertility management practices in improving level of crop yields in the basin of the Okpara River in Benin. Surveys using semi-structured questionnaire were conducted from October 11 to November 30, 2015 on a sample of 1048 farmers belonging to socio-cultural groups Tchabè, Mahi, Ditamari, Lokpa, Bariba and Fulani. Informations collected concerned farmers' soil fertility management practices and soil fertility improvement strategies introduced by the extension services. Crop rotation, long term natural fallow, fallow with perennial crops especially cashew trees, cassava "fallow" and cereal and leguminuous intercropping (respectively 91.11; 41.66; 48.53; 54.61 and 86.25% of respondents) are endogenous soil fertility management practices. However, mineral and organic fertilizers (respectively 25.45 and 20.38% of respondents) are improved soil fertility management practices introduced. Generally 42% of respondent mentioned that indigenuous soil fertility management practices could improve only by 25% crop (especially maize) yield level against 98.5% of respondents who mentioned that improved soil fertility management practices could improve by 50% of the crop yield level. Considering the efficiency of these soil fertility management practices our study suggests some issues to be taken into account for better land management in the study area.

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Explaining Soil Fertility Heterogeneity in Smallholder Farms of Southern Ethiopia

Applied and Environmental Soil Science ◽

10.1155/2020/6161059 ◽

2020 ◽

Vol 2020 ◽

pp. 1-16 ◽

Cited By ~ 4

Author(s):

Fanuel Laekemariam ◽

Kibebew Kibret

Keyword(s):

Soil Fertility ◽

Diffraction Method ◽

Soil Samples ◽

Organic Fertilizers ◽

Available P ◽

Southern Ethiopia ◽

Soil Parameters ◽

Continuous Cropping ◽

Total N ◽

Management Interventions

Soil is spatially heterogeneous and needs site-specific management. However, soil nutrient information at larger scale in most cases is lacking. Consequently, fertilizer advisory services become dependent upon blanket recommendation approach. Subsequently, it affects yield and profitability. This study is aimed at explaining soil fertility heterogeneity in Wolaita zone, Southern Ethiopia. About 789 soil samples were collected to evaluate soil physical (color, particle size, and bulk density) and chemical properties (pH, OC, N, P, K, Ca, Mg, B, Cu, Fe, Mn, Zn, PBS, and CEC). The laser diffraction method for soil particles and mid-infrared diffused reflectance (MIR) spectral analysis for OC, TN, and CEC determination were employed. Mehlich-III extraction and inductively coupled plasma (ICP) spectrometer measurement were used for the remaining elements. The result based on principal component analysis showed that 52% of the total variations were explained by exchangeable bases, CEC, pH, available P, Cu, B, and particle sizes. Clay texture and acidic soil reaction are dominant. Soil parameters with the following ranges were found at low status: soil OC (0.2–6.9%), total N (0.01–0.7%), available P (0.1–238 mg/kg), S (4–30 mg/kg), B (0.01–6.9 mg/kg), and Cu (0.01–5.0 mg/kg). Besides, low levels of exchangeable Ca, Mg, and K (Mg-induced K deficiency) on 22, 34, and 54% soil samples, respectively, were recorded. The soil contained sufficient Fe, Zn, and Mn. In conclusion, the study aids in developing practical decision for optimum soil management interventions and overcomes lower productivity occurring due to fertilizer use that is not tailored to the local conditions. Overall, continuous cropping, low return of crop residues, and low and/or no fertilizer application might have caused the low status of N, P, K, S, B, and Cu. Therefore, application of inorganic fertilizers specific to the site, lime in acidic soils, and organic fertilizers are recommended to restore the soil fertility and improve crop productivity.

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Appraisal Soil Quality in the Agrarian Society of Pir Panjal Himalayas

Alinteri Journal of Agricultural Sciences ◽

10.47059/alinteri/v36i2/ajas21121 ◽

2021 ◽

Vol 36 (2) ◽

pp. 104-111

Author(s):

M. Imran Ganaie ◽

Manzoor A. Wani ◽

Aisha Dev ◽

Ishtiaq A. Mayer

Keyword(s):

Electrical Conductivity ◽

Soil Fertility ◽

Soil Samples ◽

Organic Fertilizers ◽

Soil Testing ◽

Chemical Parameters ◽

Testing Laboratory ◽

Holistic View ◽

Agrarian Society ◽

Physico Chemical

Background: The present study pertains to appraise the soil fertility in the foot hills of Pir Panjal by measuring different physico-chemical parameters such as pH, electrical conductivity (EC), organic carbon (OC), nitrogen (N), phosphorus (P), and potassium (K) in the foothill of Himalayas. Study area with unique physiographic and socio-economic identities have attributed to the soil fertility. Methods: Soil tests were carried at Soil Testing Laboratory (STL), Department of Horticulture. Soil samples at 1-30 cm depth were collected from 10 sample sites selected through composite sampling. Samples were collected randomly keeping in mind the maximum areal coverage. From each site, three sub samples were taken from selected locations to have holistic view of the soil fertility. Conclusion: The study showed deficiency of N & K in all the soil samples, with little variations in other parameters. Sample sites adopting organic farming showed optimum soil fertility. In the study we concluded that practice of adapting organic fertilizers is suitable for maintaing soil fertility. Least perception in the use of different fertilizers (organic & inorganic) a potent cause in the soil deformities in the region.

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Soil Amendments to Re-establish Agricultural Production on Ex-tin Mined Area

10.5194/egusphere-egu2020-21166 ◽

2020 ◽

Author(s):

Rizki Maftukhah ◽

Ngadisih Ngadisih ◽

Murtingrum Murtiningrum ◽

Axel Mentler ◽

Katharina Keiblinger ◽

...

Keyword(s):

Soil Fertility ◽

Soil Ph ◽

Agricultural Production ◽

Cover Crop ◽

Crop Yields ◽

Soil Amendments ◽

Combined Treatment ◽

Soil Samples ◽

Soil Parameters ◽

Main Crop

AbstractMining is an important industrial sector in Bangka Island (Indonesia) where about 70% of this area is tin mining. The separation of tin via flotation of tin-containing soils results in acidic nutrient-poor soils with very low organic matter contents. Hence, ex-tin mined areas are highly and unsuitable for plant growth due to their un-fertility. To improve soil fertility soil amendments are of vital importance. This research aims to evaluate the impact of different soil amendments on agricultural production and basic soil parameters on the ex-tin mined area.The study was conducted on ex-tin mined area located in Bangka Regency, Indonesia (1o47&#8217;22.9085 S and 106o5&#8217;47.0461 E). Bangka Regency has a tropical climate with an average daily temperature of 27.2oC, precipitation during the growing season is 191.5 mm per month. The field trial was set up in July 2018 by a randomized complete block design with five different soil amendments and control plots for comparison, with a size of 2 x 2 m in four replicates. The treatments consist of the: (1) Control, (2) Lime, (3) Compost; (4) Charcoal and combinations of (5) Charcoal and Compost, and (6) Charcoal and sawdust. The soil was amended with t.ha-1 for the single amendments (treatments 2-4), and with rate 20 t.ha-1 for combined amendments (treatments 5 and 6). The plots are used to grow cassava (Manihot esculenta) for 12 months as the main crop and Centrocema pubescens as used as a cover crop grown twice for 6 months to avoid soil erosion. Soil samples were taken before and after harvest to analyze soil properties. Soil samples were analyzed for the following parameters: pH, Dissolved Organic Carbon (DOC), and Electric Conductivity (EC). Crop yields were determined by weighing the total harvest of each crop per plot. The cover crop was harvested in December 2018, and replanted, until the main crop Cassava was harvested (30 July 2019), where the cover crop yield was also evaluated. Cassava yields were separated into belowground and aboveground yields.Soil amendments showed positive effects on soil pH, DOC, and EC at harvest time. Lime treatment significantly improved soil pH and EC (7.40 and 72.30 &#181;S.cm-1 respectively), while DOC was significantly increased by compost treatment. Centrocema pubescens yields were significantly higher at the first harvest compared to the second one. The combined treatment with charcoal (10 t.ha-1) + Compost (t.ha-1) showed significantly the highest yield for both samplings. While another combined treatment, where, charcoal and sawdust was applied at 10 t.ha-1 each, showed the highest total cassava belowground biomass (5.44 ton.ha-1 ) as well as cassava aboveground biomass (3.06 ton.ha-1).Results of the present field experiment suggest that the application of soil amendments directly affected soil parameters. The effect on yields was positive but crop dependent, likely due to different nutrient requirements. Data on heavy metal uptake by plants regarding soil amendments will be presented. Soil amendments can provide the potential to improve food safety and security in the ex-tin mined area.Keywords: ex-tin mined, soil fertility, soil amendments, soil parameters, crop yields

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BIOLOGICAL WAYS OF INGRESING SOIL

10.26897/978-5-9675-1855-3-2021-47 ◽

2021 ◽

Author(s):

Y. P. Skorochkin ◽

Keyword(s):

Soil Fertility ◽

Crop Yields ◽

Low Cost ◽

Organic Fertilizers ◽

Grain Crops

The article shows the sources of increasing soil fertility. To preserve soil fertility and ensure stable crop yields in conditions of insufficient use of organic fertilizers, it is advisable to use natural biological means. The most simple to use and low-cost are siderates and straw of grain crops.

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Influence of Slope Gradient on Coffee Soil Fertility in Goma Woreda of Oromia Region

International Journal of Current Research and Academic Review ◽

10.20546/ijcrar.2021.901.003 ◽

2021 ◽

Vol 9 (1) ◽

pp. 43-49

Author(s):

Mohammed Kedir

Keyword(s):

Soil Fertility ◽

Water Conservation ◽

Soil Samples ◽

Organic Fertilizers ◽

Slope Gradient ◽

Standard Procedures ◽

Wide Range ◽

Study Sites ◽

Future Work ◽

One Way Anova

This study was to evaluate the influence slope gradient on coffee soil fertility. Accordingly, soil samples, and field history was collected from 10 coffee farms during pinhead phase. Soil samples collected from 0-30 cm depth were prepared and analyzed in the laboratory following standard procedures. For data analysis, one-way ANOVA was used. The results revealed that coffee cultivations have practiced under wide range of slope gradients in study sites. Variations in slope gradients significantly influenced the coffee soil fertility. Consequently, OM, clay, CEC, available P, Mg and Na generally showed a decreasing trend with increasing slope gradient, whereas sand was opposite. For sound conclusion, appropriate soil and water conservation measures, N, P, K, organic fertilizers are recommended for future work.

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Effect of Organic and Mineral Fertilizers on the Accumulation of Total Nitrogen, Phosphorus and Potassium in the Surface Mass in Cover Crop of Alfalfa

Bulletin of Science and Practice ◽

10.33619/2414-2948/68/08 ◽

2021 ◽

Vol 7 (7) ◽

pp. 62-67

Author(s):

E. Allahverdiyev ◽

S. Khalilov

Keyword(s):

Total Nitrogen ◽

Mineral Fertilizers ◽

First Year ◽

Surface Mass ◽

Organic And Mineral Fertilizers ◽

Phosphorus And Potassium ◽

High Yields ◽

Cultivation Techniques ◽

Fertilizer Rates ◽

Nitrogen Phosphorus

The article examines the effect of organic and mineral fertilizers on the accumulation of total nitrogen, phosphorus and potassium in the surface mass of alfalfa in the gray-meadow soils, which have long been irrigated and poorly supplied with nutrients in the Karabakh region. issues were commented: Provision of plants with essential nutrients during the growing season, productivity, product quality depends on the availability of easily digestible nutrients in the soil. In order to get high yields from agricultural crops, organic and mineral fertilizers should be applied to the soil every year in accordance with the norms established on the basis of soil cartograms, and cultivation techniques should be properly followed. The optimal diet for alfalfa depends on the optimization of fertilizer rates in different irrigations. The highest amount of total NPK was observed in the first form over the years and decreased in subsequent forms. Each of the formations in the surface mass was high in nitrogen and potassium, and low in phosphorus. In the 2nd and 3rd years of alfalfa condition, the total NPK was higher than in the first year in terms of formats. This is due to the fact that alfalfa increases the amount of nutrients in the soil and soil fertility. It also has a positive effect on the regulation of nutrients in the surface mass of alfalfa.

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Farmers' Perception of the Health Effects of Agrochemicals in Southeast Nigeria

Journal of Health and Pollution ◽

10.5696/2156-9614-8.19.180901 ◽

2018 ◽

Vol 8 (19) ◽

Cited By ~ 1

Author(s):

Chikamso C. Apeh

Keyword(s):

Health Effects ◽

Food Production ◽

Crop Yields ◽

Environmental Risks ◽

Agricultural Economics ◽

Organic Fertilizers ◽

Extension Agents ◽

Financial Interests ◽

Phosphorus And Potassium ◽

Nitrogen Phosphorus

Background. Agrochemicals are used by farmers in Southeast Nigeria to increase crop yields and food production. However, farmers are often illiterate and do not follow precautions for their usage and application, increasing the risk of exposures to humans and the environment. Objectives. The aim of the present study was to determine the extent of the use of agrochemicals by farmers, category or type used, ability to read instructions, exposure to agrochemicals during application and perception of the health effects of exposure to agrochemicals in Southeast Nigeria. Methods. From February–June 2017, a total of 200 farmers were surveyed using oral interviews and structured questionnaires. Data were analyzed using descriptive statistics. Respondents were asked about items such as socioeconomic characteristics, types and amounts of fertilizers and pesticides used, exposure during application and perceptions of the health effects of exposure to agrochemicals. Results. In the present study, the majority of farmers (74%) used inorganic fertilizers (nitrogen, phosphorus, and potassium (NPK)) and 26% used organic fertilizers (compost manure). Most of the farmers in the present study (65%) reported that they could not read agrochemical application instructions, 92% of farmers were exposed to agrochemicals during application, and most farmers (73%) reported falling sick after exposure to agrochemicals. Conclusions. We recommend that agricultural extension agents provide farmers with comprehensive training in agrochemical use to ensure their health and lower environmental risks. Participant Consent. Obtained Ethics Approval. The study was approved by the Research Ethics Committee, Department of Agricultural Economics, Faculty of Agriculture, University of Nigeria, Nsukka Competing Interests. The author declares no competing financial interests

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The Use of Peat Deposits of the Russian Federation for Organic Fertilizers Production

E3S Web of Conferences ◽

10.1051/e3sconf/202017401015 ◽

2020 ◽

Vol 174 ◽

pp. 01015

Author(s):

Oleg Misnikov

Keyword(s):

Soil Fertility ◽

Russian Federation ◽

Crop Yields ◽

Humus Content ◽

Arable Land ◽

Organic Fertilizers ◽

The Past ◽

Peat Deposits ◽

The Russian Federation ◽

Micro Elements

In agricultural production, soil fertility and the overall productivity of arable land depends on the quality and quantity of mineral and organic fertilizers. The decrease in the humus content in soil observed over the past decade requires a systematic use of various organic fertilizers. The use of peat-based fertilizers guarantees high and sustainable crop yields. Restoration of soil fertility should be carried out by organic fertilizers enriched with humic acids with physiologically active groups, free nitrogen-containing components, a complex of nutrients and micro elements. The author considers the possibility of using humus peat ameliorants for the restoration of disturbed lands and the increase of soil fertility. The production and use of peat-based organic fertilizers and ameliorants in various sectors of the economy is an incentive for the stable functioning of the peat business and a significant factor in the socio- economic development of the regions of the Russian Federation.

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