Print ISSN: 2077-5822

Online ISSN: 2618-1479

Keywords : production


Evaluation of the Sustainability of Phoenicultural and Market Gardening Production Systems of the Development in the Ouargla Region (Southern Algeria)

DJOUHRI Nesrine; BOUAMMAR Boualem; DADAMOUSSA Mohamed Lakhdar

Al-Qadisiyah Journal For Agriculture Sciences, 2022, Volume 12, Issue 1, Pages 143-155
DOI: 10.33794/qjas.2022.133728.1042

The aim of our work is to study the sustainability of seal and market gardening production systems. This study was carried out in two study areas N'goussa and Hassi Ben Abdellah in the region of Ouargla (Algeria), through 75 surveys in different farms where we elaborated a typology of evolution in order to know the determining elements of the trajectories. The Ouargla region's Farm Sustainability Indicator (IDEA) is important. The assessment of agro-ecological, socio-territorial and economic indicators indicates that the agro-ecological indicator is the most represented by (the indicator of fertilizer and agricultural practices) by 46 out of 100. The work was followed by statistical analyses (using Excel stat) to study sustainability constraints. The results show that the polyculture system (date palm, market gardening, etc.) is the most dynamic in terms of cultivation practices. The market gardening production system is economically profitable in the two study areas due to the evolution of market gardening under shelter. The stability of the seal farming system and its uniqueness indicate that it shows the most signs of sustainability. 

Rainfall Trends in Semi-Arid Cereal Regions of Algeria

Mawhoub Amirouche; Dalila Smadhi; Lakhdar Zella; Hakim Bachir

Al-Qadisiyah Journal For Agriculture Sciences, 2021, Volume 11, Issue 1, Pages 36-44
DOI: 10.33794/qjas.2021.129187.1000

The study focuses on rainfall, number of rainy days and droughts, on an annual time step basis, over the period (1940-2019). Each parameter is analysed by the average behavior of 1,817 variables representative of 23 semi-arid wilayas. The approach helps to characterise the rainfall climate of cereal-growing regions, where production and yields per hectare are unstable for decades.The average rainfall, estimated at 423 mm, shows a cyclical evolution, reflected by a change in averages: 430, 405, 440 mm. These averages reproduce two relatively rainy cycles (1940-1970) and (2000-2019), separated by a dry cycle (1970-2000). The frequency of cyclical rains, however, shows that rains above 400 mm remain less dominant over 79 years. The averages of observations decrease progressively with the increase of the quantities of rains, that is to say, percentages that do not exceed 14, 13 and 9%. These characteristics underline interannual droughts, which fluctuate between 0.8 and -2.5, showing a progressively decreasing number of rainy days. The results obtained do not seem to explain all the variations in cereal production and yield. However, the correlation coefficients below 35% reflect the efficient use of rainfall during the crop growth cycle, which is subject to other production factors.