Influence of silicon, nitrogen and molybdenum doses on the production of bean pods
Abstract— The snap beans is greatly appreciated and consumed by Brazilians, and the snap beans commercial seeds are divided into indeterminate growth habit and determined. Farmers most often plant indeterminate growth habit bean-pod, so the fertilizer recommendations are for this habit. Due to the availability of determinate growth habit cultivars, it is necessary to study the nutrition area, because they have the shortest cycle, flowering and pod production in concentrated period, smaller spacing and planting densities with greater influence in the population by ha. The study aimed to evaluate the snap bean growth given in the search response with increased productivity positively due to the use of silicon as well as the rational use of Nitrogen and Molybdenum. The experiment was design on track and installed with subplots and two replications, using treatments with and without foliar application of 5% of eucalyptus ash, four nitrogen doses 0, 50, 100 and 150 kg N / ha and four molybdenum doses in foliar application 0, 30, 60 and 90 g Mo / ha. Nitrogen and molybdenum treatments responded with a yield and quality increase, allowing adjusting of quadratic equations regression and to recommend if the farmer does not use molybdenum, the nitrogen dose of 79.2 kg in coverage application. For molybdenum and nitrogen, according to the results obtained, the doses of 35g Mo / ha and 130 kg N / ha in coverage are recommended in coverage application. The silicon, applied through eucalyptus ash, did not respond in production.
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Physico-chemical Analysis of the MEHDIA Estuary (GHARB –MOROCCO)
Abstract—In Morocco, superficial flows are dependent on rainfall and exhibit high spatial variability. In general, the water resources available to Morocco are limited and subject to extreme cyclical variations. Similarly, the qualitative situation of the waters is far from satisfactory. Indeed, population growth accompanied by rapid urbanization that causes many disturbances to natural environments. Industrialization, the irrational use of fertilizers and pesticides and the lack of awareness of the population towards the protection of the environment, lead as much to an imbalance of the ecosystem and generate polluting elements that can affect the physico-chemical quality biological and aquatic environments, but also alter the uses of water; water collection, swimming … etc. The sub-basin of OuedSebou drains the Mehdia region and is particularly affected by the problem of continuous development of the agricultural sector. Indeed, the discharges of water-gardens, pesticides and fertilizers drained by rainwater and irrigation and dirt environment, in addition to the domestic discharges generated by the small town Mehdia and the city of Kenitra are dumped directly into the OuedSebou. The present research on the Mehdia region is aimed at the prospection of the hydrobiology of the waters of the Sebouwadi. The study will be based on physicochemical analysis of the mouth of Mehdia and the determination of seasonal fluctuations of these parameters between the low water period and the flood period.
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Impact of Land Fragmentation on Technical Efficiency: The Case of Maize Farmers in the Transitional Zone Of Ghana
Abstract— This paper seeks to study the impact of land fragmentation on technical efficiency of 461 maize farmers selected through the multi-stage sampling technique from the transitional zone of Ghana. The study used the stochastic production frontier model to analysis data from 2017/2018 farming season. The findings showed that, most of the farmers were in their youthful age with few of them over the age of 60 therefore, an average age of 44.8. The study revealed that; quantity of labour used , quantity of seed used, and farm size are the factors that determine the technical efficiency of farmers in the study area since it has a significant relationship with technical efficiency. On the other hand, land fragmentation and distance between farms was identified to be the only significant source of technical inefficiency of maize farmers in the study area. It is suggested that resource allocation and land policies should target the improvement of production efficiency of maize farmers in the study area.