<abstract xmlns="http://www.w3.org/1999/xhtml"> The present paper aims to demonstrate how the state land ownership affects development of agricultural sector in Uzbekistan, and what are its strengths and weaknesses. It highlights the importance of secure land right regardless of ownership. Land in Uzbekistan is state-owned; the exclusive state ownership of land was first incorporated in the 1992 Constitution. The official rationale was to ensure food security and social stability; another concern was the state-run irrigation system, operation of which would be hampered in the event of land privatization.Farming entities in Uzbekistan possess different rights to land: from long-life inheritable rights of the dehkans (small-scale household farms) to rights limited by 30 to 50 years and defined by lease contracts of the private farmers. The latter are monitored by the state and are subject to state interventions; in the first place they have to carry the burden of state quotas for cotton and wheat and they are obliged to sell these crops for state-dictated prices. Dehkans provide a major part of livestock production and they can, unlike private farmers, sell all their production at market prices.Land tenure rights in Uzbekistan lack certain qualities that would make land tenure rights meaningful. The duration of land rights is sufficient, however they do not assure the holders that rights will be recognized and enforced at low costs and do not provide them with mechanisms allowing adjustment under changing conditions.The authors conclude that the insufficient land tenure security, which is further undermined by state interventions, poses a significant barrier impeding development in the agricultural sector. The paper identifies opportunities for change arising from the gradual strengthening of market principles.</abstract>

PhD., Department of International Business, Metropolitan University Prague,

Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences, Prague,

State Ownership of Land in Uzbekistan – an Impediment to Further Agricultural Growth?

<abstract xmlns="http://www.w3.org/1999/xhtml"> This study carried out an analysis of the performance of sweet potato production among small holder farmers in Oyo State of Nigeria. A combination of purposive and a two-stage random sampling technique were used to obtain information from 65 respondents. Data collected were analyzed using descriptive statistics, stochastic frontier functions and budgetary technique. Results indicated that majority of the farmers were literate, aged 43.3 years on the average, full time in sweet potato production and with mean farm size of 1.0 hectare. The gross margin and net profit were ₦76, 884.8 and ₦67,292.8, respectively (₦, naira Nigerian Currency, ₦160 = 1$US) indicating that sweet potato production was profitable. The return to scale (RTS) for the production function revealed that farmers operated in the irrational zone (stage I) of the production surface. The stochastic production frontier analysis revealed that the technical efficiencies of farmers was found to be fairly high with a mean of 0.92% which suggest that the average sweet potato output falls 0.08% short of the maximum possible level but the efficiency can be increased by better use of available resources.</abstract>

Performance Analysis of Small Scale Sweet Potato Farms in Oyo State, Nigeria

<abstract xmlns="http://www.w3.org/1999/xhtml"> This research was undertaken to examine the gender perspective of the technical efficiency of catfish farming in Alimosho Local Government Area of Lagos State. Primary data elicited from a sample size of 70 catfish farmers (38 male and 32 female catfish farmers) were employed in the study. Analysis of the data was done using descriptive statistics and stochastic frontier production function. The maximum likelihood estimates of the stochastic frontier production function revealed that the mean technical efficiency of the male catfish farmers (86%) was higher than that of the female catfish farmers (20%) and this implies that the male and female catfish farmers have the scope of improving their efficiency by 14% and 80%, respectively, through the use of farming practices used by the most efficient male and female catfish farmers. The factors that were significant in influencing the technical efficiency of the female catfish farmers were farming experience and credit while in the case of the male catfish farmers, farming experience significantly influenced their technical efficiency. In the light of the low technical efficiency of the female catfish farmers relative to the male catfish farmers, it was recommended that gender equality infishery training, extension delivery, distribution of resources and access to supportive services should be encouraged in a bid to improve the technical efficiency of the catfish farmers especially that of the female catfish farmers.</abstract>

Department of Agricultural Economics and Rural Sociology, Ahmadu Bello University, Zaria,

Department of Agricultural Economics and Farm Management University of Ilorin,

Technical Efficiency of Catfish Farming in Alimosho Local Government Area of Lagos State, Nigeria: a Gender Perspective

<abstract xmlns="http://www.w3.org/1999/xhtml"> Egg production, survival, egg quality and shell characteristics in laying pullets offered honey in drinking water during hot season were determined using hens (28-week-old, n = 120) allotted to either 0 (CONTROL), 10 (10H) or 20 ml honey/L water (20H) for 16 weeks divided into 4 phases of 4 weeks each. Data on hen-day production (EP), egg weight (EW), length (EL), breadth (EB), shape index (ESI), yolk weight (YW), yolk percentage (YP), albumen height (AH), albumen weight (AW), albumen percentage (AP), Haugh unit (HU), shell weight (SW), shell percentage (SP), shell thickness (ST) and survival (SR) were subjected to ANOVA.EP was significantly (P &lt; 0.001) affected by treatment during phases 1-4. 20H resulted in higher EP than CONTROL in phase 1. In phase 2, EP was similar in CONTROL and 20H, but 10H was lower than the two. Higher EPs were recorded in CONTROL than in honey groups (phases 3, 4). EW was significantly (P &lt; 0.01) affected by honey in week 1 only. Birds on 10H laid heavier eggs than CONTROL. 10H hens laid significantly longer (P &lt; 0.001) eggs with higher (P = 0.008) ESI than control hens while 20H birds had significantly lower values of AH (P &lt; 0.01), AP (P = 0.05) and HU (P = 0.05). Honey had no significant (P > 0.05) effect on EB, YW, YP, AW, SW, SP and SR, but improved (P &lt; 0.05) ST in the first 2 phases. To ensure improvement in egg production and egg shell thickness in laying pullets during hot season, honey at 20 ml/L water can be offered for 4 weeks.</abstract>

Department of Animal Physiology College of Animal Science and Livestock Production Federal University of Agriculture PMB 2240 Abeokuta,

Department of Animal Nutrition, College of Animal Science and Livestock Production, Federal University of Agriculture, PMB 2240 Abeokuta,

Laying Performance, Survival Rate, Egg Quality and Shell Characteristics in Laying Pullets Offered Honey in Drinking Water during Hot Season

<abstract xmlns="http://www.w3.org/1999/xhtml"> Accurate quantification of irrigation water requirement at different physiological growth stages of okra (Abelmoschus esculentus L.) life cycle is important to prevent over or under irrigation. Field experiments were therefore initiated to model okra irrigation water requirements at the four physiological growth stages of okra life cycle using CROPWAT model. Derived savannah 1 (DS1), derived savannah 2 (DS2) and humid forest (HF) occupying 493.36 ha, 69.83 ha and 305.25 ha respectively were used. Some selected soil physical properties coupled with weather parameters were used to develop irrigation water requirements for okra crop. In DS1, the estimated crop co-efficient (Kc) values were 0.30, 0.52, 0.84 and 0.70 for the germination, crop growth, flowering and fruiting stages, respectively. Corresponding Kc values in DS2 were 0.30, 0.54, 0.90 and 0.84 and in the HF were 0.30, 0.56, 0.87 and 0.86 respectively. Daily crop evapo-transpiration values ranged from 1.16 to 3.36, 1.17 to 3.64, and 1.2 to 3.38 mm day-1 for DS1, DS2 and HF respectively with significant (p = 0.05) peak at the flowering stage for the three locations. Sustainable okra cultivation would require maximum daily irrigation water at flowering stage (reproductive phase) to meet the crop physiological needs and evapo-transpiration demand of the atmosphere.</abstract>

Modelling Irrigation Water Requirements at Physiological Growth Stages of Okra Life Cycle Using CROPWAT Model for Derived Savannah and Humid Forest Zones of Nigeria

<abstract xmlns="http://www.w3.org/1999/xhtml"> The study examined the relationship between climate variability and livestock production and the lessons that can be drawn for achieving sustainable livestock production in Nigeria. The study employed time series data on annual rainfall and livestock production given by index of the aggregate livestock production over the period of 1970 to 2008. The data were obtained from various publications of the Central Bank of Nigeria and the Nigerian Meteorological Agency. The data were analyzed through the instrumentality of econometric tools such as Augmented Dickey Fuller (ADF) test, Vector auto regression (VAR) lag order selection test and Pairwise granger causality. The results of the data analysis revealed the existence of unidirectional causality from climate variability to livestock production in Nigeria and this implies that climate variability has been significant in influencing livestock production over the period under study. Based on the foregoing, it is recommended as a matter of urgency that government should continually sensitize farmers on the challenges of climate change and feasible adaptation measures that they can adhere to in order to avert the detrimental effects of climate change on sustainable livestock production. In other words, implementation of the policy thrust on climate smart agriculture should be pursued vigorously.</abstract>

Climate Variability and Livestock Production in Nigeria: Lessons for Sustainable Livestock Production

AHEAD OF PRINT

Volume 57 (2024): Issue 1 (January 2024)

Volume 56 (2023): Issue 1 (January 2023)

Volume 55 (2022): Issue 1 (January 2022)

Volume 54 (2021): Issue 1 (January 2021)

Volume 53 (2020): Issue 4 (December 2020)

Volume 53 (2020): Issue 3 (September 2020)

Volume 53 (2020): Issue 2 (June 2020)

Volume 53 (2020): Issue 1 (March 2020)

Volume 52 (2019): Issue 3-4 (December 2019)

Volume 52 (2019): Issue 2 (June 2019)

Volume 52 (2019): Issue 1 (March 2019)

Volume 51 (2018): Issue 4 (December 2018)

Volume 51 (2018): Issue 3 (September 2018)

Volume 51 (2018): Issue 2 (June 2018)

Volume 51 (2018): Issue 1 (March 2018)

Volume 50 (2017): Issue 4 (December 2017)

Volume 50 (2017): Issue 3 (September 2017)

Volume 50 (2017): Issue 2 (June 2017)

Volume 50 (2017): Issue 1 (March 2017)

Volume 49 (2016): Issue 1-4 (December 2016)

Volume 48 (2015): Issue 3-4 (December 2015)

Volume 48 (2015): Issue 1-2 (June 2015)

Volume 47 (2014): Issue 4 (December 2014)

Volume 47 (2014): Issue 3 (September 2014)

Volume 47 (2014): Issue 2 (June 2014)

Volume 47 (2014): Issue 1 (March 2014)

Volume 46 (2013): Issue 4 (December 2013)

Volume 46 (2013): Issue 3 (September 2013)

Volume 46 (2013): Issue 2 (June 2013)

Volume 46 (2013): Issue 1 (March 2013)

Volume 45 (2012): Issue 4 (December 2012)

Volume 45 (2012): Issue 3 (October 2012)

Volume 45 (2012): Issue 2 (June 2012)

Volume 45 (2012): Issue 1 (March 2012)

Agricultura Tropica et Subtropica

 Agricultura Tropica et Subtropica is an international peer-reviewed scientific journal published by Mendel University in Brno (MENDELU) and managed by the Faculty of Regional Development and International Studies. As of 2021 it is published as Open Volume, i.e. accepted articles are immediately presented on the Sciendo platform in a continuous manner, not grouped in issues any more.   The objective of the journal is to promote the science and development of animal and plant production, animal health and welfare, issues of sustainable agriculture, agriculture technology, land and water protection, forestry in tropics and subtropics, landscape, economy of agriculture and rural development in tropical and subtropical areas, as well as studies on human resources in agriculture and protection of biodiversity. Its aim is thus to help sustainable agriculture that would provide quality food for growing human population in the areas under study.   The quality of each contribution is assessed by at least two international experts in the respective field of agricultural sciences. The members of our Editorial Board are critically evaluating the revised manuscripts before final approval is issued.   ATS welcomes original research papers, review articles, and short communications that are related to all aspects of agricultural sciences and technology from all continents and cultures. It is the most friendly publishing forum for young scientists beginning to communicate their results as well as for the seasoned ones.   Scope of the journal   Plant and animal production, animal health and welfare, issues of sustainable agriculture, agriculture technology, land and water protection, forestry in tropics and subtropics, agricultural economics, and regional development in tropical and subtropical areas.   Key words   Serious, author-friendly, helpful, accurate, responsible, reliable   Why subscribe and read   Original and review articles on all aspects and hot topics in tropical agriculture are published. The aim is to support better and sustainable use of local resources such as plants, animals, and soils for human use and support biodiversity.   Why submit   Constructive, comprehensive blind peer reviews by international experts. Editorial support to authors.   Rejection Rate    Approx. 50%      Archiving   Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.   Plagiarism Policy   The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process.   BACK ISSUES:Link to previous on-line volumes of Agricultura Tropica et Subtropica (abstracts in years 1989- 2004, full texts from 2005): www.agriculturaits.czu.cz/ and www.agricultura.mendelu.cz 

Agricultura Tropica et Subtropica

Volume 49 (2016): Issue 1-4 (December 2016)

Review Article

State Ownership of Land in Uzbekistan – an Impediment to Further Agricultural Growth?

Original Research Article

Performance Analysis of Small Scale Sweet Potato Farms in Oyo State, Nigeria

Technical Efficiency of Catfish Farming in Alimosho Local Government Area of Lagos State, Nigeria: a Gender Perspective

Laying Performance, Survival Rate, Egg Quality and Shell Characteristics in Laying Pullets Offered Honey in Drinking Water during Hot Season

Modelling Irrigation Water Requirements at Physiological Growth Stages of Okra Life Cycle Using CROPWAT Model for Derived Savannah and Humid Forest Zones of Nigeria

Original Research Paper

Climate Variability and Livestock Production in Nigeria: Lessons for Sustainable Livestock Production

Cerca

Tutti i volumi ed i numeri in questa rivista