IOSR-JAVS VOLUME-19 ~ Issue-8 ~ Aug. 2026

ABSTRACT: The soils of Ghana vary with location due to difference in parent material and climate with low productivity. Biochar is increasingly proposed as an amendment that can improve soil productivity but its effectiveness is texture dependence. Therefore, this study was carried out to find out if biochar application is effective for all soil textures in northern Ghana. To achieve that soil data (texture, organic carbon, soil depth and bulk density) were obtained for 35 locations (cultivated and uncultivated) were collected across the northern regions. A validated crop model......

Keywords: Biochar, Available water content, soil, Biochar, millet yield, Ghana.

[1]. Adamu, G. K., & Aliyu, A. K. (2012). Determination Of The Influence Of Texture And Organic Matter On Soil Water Holding Capacity In And Around Tomas Irrigation Scheme, Dambatta Local Government Kano State. 7.
[2]. Adiku, S., Tachie-Obeng, E., Gyasi, E., Abekoe, M., & Ziervogel, G. (2010). Farmers ’ Adaptation Measures In Scenarios Of Climate Change For Maize Production In Semi-Arid Zones Of Ghana. 2nd International Conference, Suisnability And Developpment In Semi-Arid Regions, (January 2015), 20.
[3]. Braimoh, A. K., & Vlek, P. L. G. (2004). The Impact Of Land-Cover Change On Soil Properties In Northern Ghana. Land Degradation & Development, 15(1), 65–74. Https://Doi.Org/10.1002/Ldr.590
[4]. Doorenbos, J. And Kassam, A. . (1979). Yield Response To Water. FAO Irrigation And Drainage, Paper 33, Rome, 193 P.
[5]. Hardie, M., Clothier, B., Bound, S., Oliver, G., & Close, D. (2014). Does Biochar Influence Soil Physical Properties And Soil Water Availability? Plant And Soil, 376(1–2), 347–361. Https://Doi.Org/10.1007/S11104-013-1980-X

ABSTRACT: The culture was conducted in three ponds, each sized 0.7, 0.7, and 0.4 hectares in Pucchakurthivaari palem, Andhrapradesh, and an intensive culture system was selected under bore water circumstances. Sy aqua seed was collected from Manjunaadha hatcheries; the L. vannamei seed was provided from the CAA-certified Ulavapaadu village in the Prakasam district, Andhrapradesh. The stocking densities of L.vannamei PL10 (post larvae) were calculated using three samples, each of which had 23, 37, and 28 species/m2 and 59, 60, and 51% survival rates. The......

Keywords: L.vannamei, salinity, dissolved oxygen, growth, production and economic analysis

[1]. Alcivar-Warren AD, Meehan-Meola S, Won Park, Xu Z, Delaney M, Zuniga G, (2007) Shrimp Map: A Low-Density, Microsatellite-Based Linkage Map Of The Pacific White Leg Shrimp, Litopenaeus Vannamei: Identification Of Sex-Linked Markers In Linkage Group 4. Journal Of Shellfish Research 26(4): 1259–1277, Http://Dx.Doi.Org/10.2983/0730-8000(2007) 26[1259: SALMLM] 2.0.CO; 2.
[2]. Araujo, A. N., Nguyen, K., Strebel, L., Corby, T., Rhodes, M. A., Beck, B. H., ... & Davis, D. A. (2025). Effect Of Protein Intake On Growth And Nutrient Retention Of Pacific White Shrimp (Litopenaeus Vannamei) In A Green Water Recirculating Aquaculture System. Aquaculture Nutrition, 2025(1), 4942439.
[3]. Brandão, H., Dos Reis, W. G., Krummenauer, D., & Wasielesky Jr, W. (2024). Growth Performance Of Litopenaeus Vannamei Under Biofloc System Using Denitrified Seawater. Aquaculture International, 32(3), 3129-3145. [4]. Bray W.A., Lawrence, A.L., Leung-Trujillo, J.R., (1994). The Effect Of Salinity On Growth And Survival Of Penaeus Vannamei, With Observations On The Interaction Of IHHN Virus And Salinity. Aquaculture 122, 133–146.
[5]. Chowdula, S. (2024). A Socio-Economic Analysis On Shrimp Culture (Litopenaeus Vannamei) In Godavari Districts Of Andhra Pradesh, India. Archives Of Current Research International, 24(12), 10-9734.

ABSTRACT: It is commonly observed that decline in soil quality leads to decrease in the production and high cost of food in Ebonyi State. This study therefore identified soil degradation management techniques among small holder farmers for sustainable crop production in the state. Three specific purposes and three corresponding research questions guided the study. The study was a descriptive survey design and used questionnaire to elicit information from 198 respondents made up of 162 crop farmers and 36 extension agents. Data gathered from the respondents were analyzed using mean to answer the research questions......

Keywords: Soil degradation, Management, Techniques, Small holder farmers, Sustainable, Crop Production

[1]. Ajayi, A. S. (2015). Land Degradation And Sustainability Of Agriculture Production In Nigeria. A Review Journal Of Science And Environmental Management, 6(9): 234 – 246.
[2]. Amusa, T. A; Enete, A. A. Oketobo, E. A. And Okon, U. E. (2016). Determinants Of Soil Management Practices Among Small Scale Farmers In Ekiti State, Nigeria. Nigeria Agricultural Journal, 6(2): 25 – 34.
[3]. Angba. C. W. And Hon, O. V. (2020). Analysis Of Cassava Production In Akpabuyo Local Government Area: A Econometric Investigation Using Farm Level Data. Global Journal Of Agricultural Research, 8(1); 1 – 8.
[4]. Aura, S. (2016). Determinants Of Adoption Of Integrated Soil Fertility Management Technology In Mable Division, Kenya. Adfand, 16(1); 10697 – 10710.
[5]. Ebe, E. E., Obike, K. C. And Nnamani, N. G. (2019). Determinants Of Soil Management Practices Among Small Scale Farmers Of Arable Crops In Nkanu East Local Government Area Of Enugu State, Nigeria. FUW Trends In Science And Technology Journal, 4(1), 13 – 24.

ABSTRACT: Adoption of intercropping has the potential to make efficient use of scarce land resource in densely populated AEZs of western Kenya and provide both livestock feed and human food while ensuring climate resilience. Most studies have focused on one intercrop while in this study, we tested Maize-Desmodium intercrop with vegetables on system productivity and land equivalent ratio (LER). Field experiment was conducted during short rains of 2023 and long rains of 2024 in Maseno to determine the effect of integrating kales and African nightshade into Maize-Desmodium......

Keywords: Intercropping, Productivity, LER, climate resilience

[1]. Altieri MA, Nicholls CI, Henao A, & Lana MA. (2015). Agroecology And The Design Of Climate Change-Resilient Farming Systems. Agronomy For Sustainable Development, 35(3), 869–890. Https://Doi.Org/10.1007/S13593-015-0285-2
[2]. Bamboriya SD, Bana RS, Kuri BR, Kumar V, Meena RP. (2022). Achieving Higher Production From Low Inputs Using Synergistic Crop Interactions Under Maize-Based Polyculture Systems. Environmental Sustainability, 5(2), 145–159.
Https://Doi.Org/10.1007/S42398-022-00228-7
[3]. Chen G, Liu M, Zhao X, Bawa G, Liang B, Feng L, Pu T, Yong T, Liu W, & Liu J. (2024). Improved Photosynthetic Performance Under Unilateral Weak Light Conditions In A Wide–Row Intercropping System Is Associated With Altered Sugar Transport. Journal Of Experimental Botany, 75(1), 258–273.
[4]. Fahad S, Chavan SB, Chichaghare, AR., Uthappa, AR, Kumar M, Kakade V, Pradhan A, Jinger D, Rawale G, Yadav DK., Kumar V., Farooq TH, Ali B, Sawant AV, Saud S, Chen S, & Poczai P. (2022). Agroforestry Systems For Soil Health Improvement And Maintenance. Sustainability (Switzerland), 14(22), 1–25. Https://Doi.Org/10.3390/Su142214877
[5]. Henze J, Abukutsa-Onyango M, & Opiyo A. (2020). Production And Marketing Of African Indigenous Leafy Vegetables. Humboldt-Universität Zu Berli.

ABSTRACT: Fertilizer discharge process is a critical part of fertilizer application, as it affects the fertilizer discharge rate and uniformity of fertilizer application. Aiming at the poor fertilizer discharge problem of the traditional straight grooved wheel fertilizer applicators, an improved spiral grooved wheel fertilizer discharge device was designed, and the structural parameters of the spiral grooved wheel applicator were analysed.......

Keywords: Spiral grooved-wheel, structural design, DEM simulation, validation experiment

[1]. Bangura K, Wu S L, Tang Z Y, Feng X, Hu R J, Cai Y H, Et Al. (2024). Design And Performance Evaluation Of The Six-Row Side Deep Fertilizer Applicator For Paddy Fields. International Journal Of Agricultural And Biological Engineering 17(6): 166–17.
Https://Doi.Org/10.25165/J.Ijabe.20241706.8598
[2]. Chen H B, Zheng J F, Lu S J, Zeng S, Wei S L (2021). Design And Experiment Of Vertical Pneumatic Fertilization System With Spiral Geneva Mechanism. International Journal Of Agricultural And Biological Engineering 14(4): 135-144.
Https://Doi.Org/10.25165/J.Ijabe.20211404.6575
[3]. Ding S, Bai L, Yao Y, Yue B, Fu Z Et Al. (2028). Discrete Element Modeling (DEM) Of Fertilizer Dual-Banding With Adjustable Rates. Computers And Electronics In Agriculture 152: 32-39. Https://Doi.Org/10.1016/J.Compag.2018.06.044
[4]. Ding S, Bai L, Yao Y, Yue B, Fu Zet Al. (2018). Discrete Element Modeling (DEM) Of Fertilizer Dual-Banding With Adjustable Rates. Computers And Electronics In Agriculture, 152: 32-39. Https://Doi.Org/10.1016/J.Compag.2018.06.044
[5]. Gao X, Xie G, Xu Y, Yu Y Et Al. 2022. Application Of A Staggered Symmetrical Spiral Groove Wheel On A Quantitative Feeding Device And Investigation Of Particle Motion Characteristics Based On DEM. Powder Technology 407: 117650..

ABSTRACT: The present study evaluated the effect of sulphur and zinc applied to soil on nutritional quality of paddy straw (Oryza sativa L.) for ruminant feeding. Field experiment was conducted using four levels each of sulphur (0, 15, 30 & 45 kg ha-1) and zinc (0, 3, 6 & 9 kg ha-1) comprising sixteen treatments with three replications in factorial randomized block design. Alone application of zinc showed an antagonistic effect on phosphorus and calcium content while sulphur application significantly improved their concentrations in paddy straw. In comparison to control, combined.......

Keywords: Sulphur, Zinc, Ruminant feed, Rice straw, Mineral nutrients, Crude protein, Carbohydrates

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