scholarly journals The Marceño Agroecosystem: Traditional Maize Production and Wetland Management in Tabasco, Mexico

2019 ◽  
Vol 11 (7) ◽  
pp. 1978
Author(s):  
Humberto Peraza-Villarreal ◽  
Alejandro Casas ◽  
Roberto Lindig-Cisneros ◽  
Alma Orozco-Segovia
Keyword(s):  
Wetland Management ◽  
Probability Model ◽  
The State ◽  
Wild Plants ◽  
Residual Soil ◽  
Maize Production ◽  
Local Agriculture ◽  
Bioclimatic Variables ◽  
Ecological Conservation ◽  
State Area

The marceño agroecosystem is based on traditional agriculture in the flooded areas of the alluvial plains of Tabasco, Mexico. In the marceño system, the native maize, called “mején”, is cultivated during the dry season using residual soil moisture. At physiological maturity, mején is tolerant to flooding. To estimate the potential area where marceño may be implemented, we characterized and defined the areas where it is practiced, using geographic information systems (GIS), and determined the bioclimatic variables of the sites where 16 species of wild plants associated with the management of the marceño grow. We also analysed areas of agriculture and livestock in relation to the cyclical floods. This information was used to generate a probability model of marceño occurrence through MaxEnt, which was superimposed on an elevation model (LiDAR) geoprocessed with GIS. The marceño was observed in 203 localities across eight municipalities of Tabasco (~2% of the state area), at elevations of 1–7 m. The calculated area with potential for implementation of the marceño is about 18.4% of the state area. The implementation of this agroecosystem on a wider area might be an alternative for local agriculture development and a strategy for ecological conservation and restoration of wetlands.

scholarly journals Товарная интервенция – механизм защиты сельскохозяйственных товаропроизводителей и обеспечение продовольственной безопасности региона

2019 ◽  
pp. 55-66
Author(s):  
Александр Пахомов ◽  
Василий Дарбасов ◽  
Михаил Охлопков ◽  
Екатерина Федорова ◽  
Михаил Соломонов
Keyword(s):  
Russian Federation ◽  
State Regulation ◽  
The State ◽  
Agricultural Products ◽  
Transport Infrastructure ◽  
Wild Plants ◽  
Agricultural Product ◽  
The Russian Federation ◽  
The Republic ◽  
Federal Center

Статья написана в связи с выходом в 2018 г. последней редакции постановления Правительства Российской Федерации «О государственных закупочных интервенциях сельско-хозяйственной продукции». Целью исследования является обоснование продвижения государственного регулирования рынка местной сельскохозяйственной продукции в виде закупочных интервенций в регионах. Проведен анализ существующих зарубежных и отечественных государственных закупочных интервенций, дано обоснование закупочных интервенций в регионе, а также выработаны предложения по продвижению закупочных интервенций с федерального центра в регионы. This article was written in connection with a September 2018 release of the latest edition of a Regulation of the Russian Fed-eration Government on government purchasing interventions of agricultural products. An aim of the authors of the article is substantiation of promotion of the state regulation of a market of the local agricultural products in the form of the purchasing interventions in regions. The authors analyzed the existing for-eign and domestic government purchasing interventions, comments on the latest version of the Regulation of the Russian Federation Government on the govern-ment purchasing interventions, the substantiation of the purchasing interventions in the region and de-velopment of proposals to promote the purchasing interventions from the federal center to the regions. Relevance of the promotion of the purchasing interventions from the federal center to the regions fol-lows from Russian particularity: remoteness of the regions from the center, weak regional transport infrastructure, necessity to replicate a federal technology of the state regulation of the agricultural product market in the regions of the Russian Federation. In the Republic of Sakha (Yakutia), repeated attempts were made to create compensation funds of the regulation of agricultural product prices. However, in the region there is no full-fledged intervention fund effectively influencing sales of the agri-cultural products. Consequently, in conditions of the Republic, where a shortage of the agricultural products, raw materials and food is acute, implementation of the commodity intervention is the neces-sary condition for the regulation of the agricultural market. For the Republic of Sakha (Yakutia), in our opinion, it is advisable to carry out the commodity interventions concerning beef, meat of young horses, venison, fish, dairy products, game, fruits of wild plants and even for rough and succulent fodder for livestock. The latter are relevant due to droughts and floods that regularly occur in a area of the region. Manufacturing costs of the local products will always be higher than the ones of imported food, given the harsh natural and climatic conditions, the remoteness of agricultural commodity producers from the sale markets in the conditions of absence of the transport infrastructure. In this regard, the prices of the local products should be regulated by the state in order to support the local producers. Obviously, the government regulation should not replace market functions or impede operation of its laws. Its main task is to mitigate undesirable consequences of manifestations of market power. One of the main regula-tory methods is the commodity intervention.

scholarly journals Distribution of the monthly global solar irradiation in the State of Tabasco, Mexico

2021 ◽  
Author(s):  
Lorenzo Armando Aceves Navarro ◽  
Alberto Santillán Fernández ◽  
Benigno Rivera-Hernández ◽  
Rigoberto González Mancillas ◽  
Agrícola Arrieta-Rivera ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Efficiency Index ◽  
The State ◽  
Solar Irradiation ◽  
Monthly Average ◽  
Proposed Model ◽  
Technical Maintenance ◽  
Total State ◽  
Weather Stations ◽  
State Area

Objective: To estimate the monthly average global solar irradiance (Rg), using observed cloudiness data (% of cloudy days), as well as its spatial distribution for the state of Tabasco, Mexico.Design/Methodology/Approximation: The proposed model by Tejeda-Martínez et al. (1999) was adjusted to estimate the Rg of 35 meteorological stations in the state of Tabasco. The adjustment was performed with daily observed Rg data fromeight automated weather stations and cloudiness data from eight ordinary weather stations. Results: The proposed model reports a good fit, given that its prediction was optimal according to Willmotts comparison parameter (c = 0.89), and excellent based on the Nash-Sutcliffe efficiency index (E = 0.99) and had a high corrected determination coefficient of Rc2 = 0.87.Study limitations/implications: It is necessary that in the state of Tabasco the number of automated stations increase, as well as technical maintenance to the existing stations.Findings/conclusions: The estimated Rg is statistically reliable. The highest Rg values occurred during the dry season, with a maximum of 22.99 MJ m -2 d -1 , distributed mainly in the northern part of the state. The lowest Rg values occurredduring the northeast season (12.52 MJ m -2 d -1 ), distributed in more than 80 % of the total state area.

Restoring and Resuscitating the Cultural Landscape of Kg Pulau Ketam, Perlis

2020 ◽  
Vol 17 (1) ◽  
pp. 17
Author(s):  
Mohammad Azam Fikri ◽  
Faridatul Akma Abd Latif ◽  
Salina Mohamed Ali
Keyword(s):  
Cultural Landscape ◽  
Adaptive Design ◽  
Peninsular Malaysia ◽  
The State ◽  
Capital City ◽  
Economic Sectors ◽  
Natural Landscape ◽  
Design Program ◽  
Ecological Conservation ◽  
Ecological Treatment

This paper will discuss the final comprehensive design restoring and resuscitating the cultural of landscape of Kampung “Pulau Ketam’. The village faces annual flood events leading to degradation of existing significant properties as well as developments that demolish the genus loci of the site as a cultural fisherman village. As to encounter these issues, the aims of this article to restore and resuscitate the cultural landscape of Kampung “Pulau Ketam” with enhance the traditional fisherman Malay village livelihood by using eco-efficient and ecological treatment. The projects covering an area of 821 km2, Perlis is the smallest state in Malaysia. It is located at the northern part of the west coast of Peninsular Malaysia (6030’N and 100o15’E). In 2010, the total population was recorded at 245,636 persons with a density of 276.5/km2. The state economy is dominated by agriculture accounting for 80.5% of land use in the state with the dominant crops being rice, sugar, herbs, rubber and fruits. Forestry and fishery are also important economic sectors. The capital city of Perlis is Kangar which all case studies are in this district. The research highlighted the significant of the site study divided into three phases of sustainable interventions; 1) conservation of natural landscape 2) ecological conservation and preservation 3) resilience through protection of natural landscape, adaptive design on flooding, cultural landscape design interpretation and multiple land uses in fisherman village design program as to sustain the cultural landscape by integrating it with sustainable practice. 

FERTILIZATION STRATEGIES IN CONSERVATION AGRICULTURE SYSTEMS WITH MAIZE–LEGUME COVER CROP ROTATIONS IN SOUTHERN AFRICA

2016 ◽  
Vol 53 (2) ◽  
pp. 288-307 ◽  
Author(s):  
W. MUPANGWA ◽  
C. THIERFELDER ◽  
A. NGWIRA
Keyword(s):  
Cover Crops ◽  
Green Manure ◽  
Residual Effect ◽  
Conservation Agriculture ◽  
Maize Yield ◽  
Inorganic Fertilizer ◽  
Residual Effects ◽  
Residual Soil ◽  
Velvet Bean ◽  
Maize Production

SUMMARYMultilocation experiments were established to determine the best strategy for using inorganic fertilizer in conservation agriculture (CA) systems that use green manure cover crops, namely sunhemp, velvet bean and cowpea grown in rotation with maize. The objectives of the study were to determine (i) the effect of half and full rates of basal fertilizer on maize and legume biomass yields, (ii) the residual effects of unfertilized, half and fully fertilized green manure legumes on maize grown after the legumes, and (iii) the residual effect of unfertilized, half and fully fertilized green manure legumes combined with basal and topdressing fertilizer on maize yields. Experimental design was a randomized complete block with basal fertilizer as a treatment in the green manure legumes phase. Previously, in the maize phase, green manure legume species were the main treatment with basal fertilizer as a subtreatment (sunhemp, velvet bean and cowpea: 0, 75, 150 kg ha−1and 0, 50, 100 kg ha−1, respectively). Nitrogen was applied in the maize phase at 0, 23, 46, 69 kg N ha−1as a sub-subtreatment in Malawi. Results showed that inorganic fertilizer is the most effective when applied to the maize, not green manure legumes. Biomass of green manure legumes, sunnhemp 8084 kg ha−1, velvet bean 7678 kg ha−1and cowpea 4520 kg ha−1, was not significantly affected by application of basal fertilizer. Maize production increased after the application of green manure legumes with maize-after-maize, maize-after-velvet bean, maize-after-sunnhemp and maize-after-cowpea, yielding 3804, 5440, 5446 and 5339 kg ha−1, respectively. Nitrogen increased maize yield regardless of the previously used green manure legumes species. Our results suggest that farmers should apply fertilizer to maize and grow green manure legumes on residual soil in CA systems. Despite growing green manure legumes, smallholders should apply nitrogen topdressing to maize grown using the green manure legumes in some agro-ecologies.

Bill History Analysis: A Probability Model of the State Legislative Process

Polity ◽  
1975 ◽  
Vol 7 (3) ◽  
pp. 402-414 ◽  
Author(s):  
Stuart H. Rakoff ◽  
Ronald Sarner
Keyword(s):  
Probability Model ◽  
The State ◽  
Legislative Process ◽  
History Analysis ◽  
State Legislative

scholarly journals ANALYSIS OF MORPHOLOGICAL PECULIARITIES OF THE STATE AREA OF THE REPUBLIC OF KAZAKHSTA

REPORTS ◽  
2019 ◽  
Vol 5 (327) ◽  
pp. 93-96
Author(s):  
R.A. Karatabanov ◽  
◽  
K.V. Dzhanaleeva ◽  
A.V. Krotov ◽  
◽  
...  
Keyword(s):  
The State ◽  
The Republic ◽  
State Area

scholarly journals Index Seminum 2021

2021 ◽  
Keyword(s):  
National Park ◽  
Botanical Garden ◽  
The State ◽  
Wild Plants ◽  
International Exchange ◽  
Botanical Gardens ◽  
The World ◽  
Tatra National Park

The Index Seminum 2021 of the Botanical Garden of the Pavol Jozef Šafárik University contains a list of 131 seed samples offered for the international exchange among botanical gardens on the world. It includes seeds collected from the wild plants in natural localities of Slovakia with a detailed description of the localities with coordinates and date of collection (72 samples) and seeds of plants grown in the Botanical Garden (5 samples) and seeds from Exposition of the Tatra Mountain Nature of the State Forests of Tatra National Park, Tatranská Lomnica (54 samples). The index includes a desiderata table that can be used when ordering seeds.

Post-harvest Management of Cowpea: A potential Cash Crop for the Western Coastal Ecosystem of Goa

2021 ◽  
Vol 8 (2) ◽  
pp. 129-134
Author(s):  
MATHALA JULIET GUPTA ◽  
R. MARUTHA DURAI ◽  
SALONI S VANJARI ◽  
SUMATI CHAVAN PANDURANG ◽  
ASHISH M PITRE
Keyword(s):  
Management Practices ◽  
Callosobruchus Maculatus ◽  
Insect Pest ◽  
Secondary Data ◽  
The State ◽  
Primary Data ◽  
Callosobruchus Chinensis ◽  
Residual Soil ◽  
Post Harvest ◽  
Unit Operations

Cowpea, popularly grown as Alsando (Red Bold Variety) or Chowli (the less bold cream colored variety) is a major pulse crop of the state of Goa cultivated in the rice fallows during rabi season under residual soil moisture conditions. Harvest and post harvest losses of Cowpea were estimated by primary and secondary data collected from 50 Cowpea farmers from five villages each in the two districts, North and South of Goa and 9 storage godowns in the year 2012-13. The results showed that in spite of the crop being highly remunerative, it was cultivated in only 40 % of the paddy area. The average losses on field were 10.84 % for harvest, followed by 6.96% for threshing and 4.34 % for storage as calculated from primary data collected on farm. Secondary data showed that the awareness of losses during harvest and post-harvest unit operations was very less as they reported zero losses. The pulse has a high storage insect pest, pulse borer (Callosobruchus  maculatus,  Callosobruchus chinensis)incidence and hence was stored only for seed purpose in some cases for a year and generally disposed of by the month of  May in the godowns and by September at household level. In spite of having high returns, high local demand and nutraceutical value, the crop is not grown in large area due to labour intensive unit operations and high pest incidence. Sensitizing the farmers on good management practices and development of a drudgery free harvesting device can make this remunerative crop popular in the state.

scholarly journals MSSA: Constant Time State Search through Multi-Scope State Area

2022 ◽  
Vol 12 (2) ◽  
pp. 559
Author(s):  
Linan Jing ◽  
Jinlin Wang ◽  
Xiao Chen
Keyword(s):  
Large Scale ◽  
Fixed Time ◽  
Comparison Method ◽  
The State ◽  
Utilization Rate ◽  
Packet Forwarding ◽  
Network Applications ◽  
Data Plane ◽  
High Space ◽  
State Area

In the stateful data plane, the switch can record the state and forward packets based on the local state. This approach makes it possible to integrate complex network applications into the data plane, thus reducing the amount of communication required between the switch and the controller. However, due to the time it takes to look up the state for packets, packet-forwarding latency has increased. With increased network traffic, a large number of states may be recorded in the switch, and the problem of increased packet-forwarding latency caused by the lookup state becomes more serious. In this paper, we propose the multi-scope state area (MSSA) for recording state inside the switch, which can achieve a fixed-time state lookup in a large-scale state. MSSA divides the state sharing scope by associating with the switch’s multiple match–action tables, and the shared scope is used to determine the state area for recording state. When processing a packet, the state required will only be in a limited number of states that are recorded in a few state areas. We implemented a prototype pipeline that supports MSSA based on Intel’s DPDK framework and investigated the effect of state type, number, location, and comparison method on state search/insertion time. The results show that the cost of MSSA search state is constant, regardless of the number of states, and MSSA has a high space utilization rate.

Sign in / Sign up

Export Citation Format

Share Document