scholarly journals Socio – Economic Impacts of Prolonged Little Dry Season (August Break) in a Climatic Changed Era in Agrarian Communities of Anambra River Basin, Anambra State, Nigeria

2021 ◽  
Vol 11 (4) ◽  
pp. 4788-4805
Keyword(s):  
Local Government ◽  
River Basin ◽  
Crop Production ◽  
Supply And Demand ◽  
Dry Season ◽  
Fiscal Year ◽  
Negative Effects ◽  
Early Maturity ◽  
Anambra State ◽  
Agrarian Communities

The food supply and demand situation for the 2020 fiscal year concerning the main seasonal crops in Nigeria was unpredictable due to the effect of Covid-19 pandemic. Federal and state governments laid much emphasis as a result on agriculture, especially crop production in order to produce food enough to ameliorate hunger, which is one of the negative effects of Covid-19. Nigeria been a rain fed dependent agricultural nation, follows the dictate of weather and other weather elements in her agricultural activities. With climate change and the effect of Little Dry Season, there was a reduction in rainfall in mid-July through August 2020. Rice and Maize which are among the staple foods in Nigeria requires about 750mm to 1200mm of rainfall to thrive. The mean monthly rainfall recorded in our study area (part of Anambra River Basin) consisting of Ayamelum, Anambra West, Anambra East, Oyi and Dunukofia local government areas are 21.15mm and 3.25mm for July, 2020 and August, 2020 respectively. As a result of the shortage of rainfall in these two months, the farmers and the authors observed these negative outcomes which are early maturity of crops; early harvesting of crops as well as poor yields for early season crops. While during the late season planting, farming was affected by the hardening of the ground as a result of absence of rainfall; undissolved fertilizers in farm lands; partial germination of scattered seedlings; Ant, Birds and Rodent infestation and stunted growth. Base on our observation, it was concluded that yields and harvest would be poor and subsequently there would be shortage of food and price hike in food items. The paper recommends for the revitalization of the moribund irrigation facility in Omor, Ayamelum local government area to provide for the shortfall in moisture that is likely to occur in the absence of rainfall.

scholarly journals Abonos verdes de leguminosas: integración en sistemas agrícolas y ganaderas del trópico

2018 ◽  
Vol 29 (3) ◽  
pp. 711 ◽  
Author(s):  
Edwin Castro-Rincón ◽  
José Edwin Mojica-Rodríguez ◽  
Juan Evangelista Corulla-Fornaguera ◽  
Carlos Eduardo Lascano-Aguilar
Keyword(s):  
Crop Production ◽  
Production Systems ◽  
Animal Feed ◽  
Dry Season ◽  
Nitrogen Fertilizers ◽  
Negative Effects ◽  
Forage Crops ◽  
Positive Effects ◽  
Dual Purpose Cattle ◽  
Cattle Systems

In dry areas dominated by dual purpose cattle systems, the production of milk decreases significantly in the dry season. An alternative to maintaining production in the dry season is through the use of annual crops (corn and sorghum) to silage. The objective of this literature review was to compile information on aspects associated with the technology of green legume fertilizers and how they could be integrated into different agricultural and livestock production systems in tropical zones. Whether for crop production, animal feed or for use as hay directly. The use of forage crops to be sustainable requires the application of N since it is one of the most limiting elements to produce forage biomass. The use of synthetic nitrogen fertilizers is limited by high costs, and they also have adverse effects, such as production and leaching of nitrates that contaminate groundwater with negative effects on human health and production of nitrous oxide, which is a potent greenhouse gas which has negative effects on global warming. An alternative to the use of chemical nitrogen is the use of N-fixing forage legumes as green fertilizers to supply the N required by forage crops, but the adoption of green manures in livestock systems is very low, possibly since the benefits obtained with their use are not reflected directly in milk production at critical times of the year, which is important for producers. It is necessary to select N-fixing legumes with high biomass production and drought tolerance and demonstrate that these legumes have positive effects directly in the dry season.

Influence of NPK fertilization on weed flora in maize field

2014 ◽  
Vol 63 (1) ◽  
pp. 139-148 ◽  
Author(s):  
Éva Lehoczky ◽  
M. Kamuti ◽  
N. Mazsu ◽  
J. Tamás ◽  
D. Sáringer-Kenyeres ◽  
...  
Keyword(s):  
Plant Nutrition ◽  
Crop Production ◽  
N Availability ◽  
Weed Species ◽  
Negative Effects ◽  
Production Factors ◽  
Maize Field ◽  
Weed Flora ◽  
Npk Fertilization

Plant nutrition is one of the most important intensification factors of crop production. The utilization of nutrients, however, may be modified by a number of production factors, including weed presence. Thus, the knowledge of occurring weed species, their abundance, nutrient and water uptake is extremely important to establish an appropriate basis for the evaluation of their risks or negative effects on crops. That is why investigations were carried out in a long-term fertilization experiment on the influence of different nutrient supplies (Ø, PK, NK, NPK) on weed flora in maize field.The weed surveys recorded similar diversity on the experimental area: the species of A. artemisiifolia, S. halepense and D. stramonium were dominant, but C. album and C. hybridum were also common. These species and H. annuus were the most abundant weeds.Based on the totalized and average data of all treatments, density followed the same tendency in the experimental years. It was the highest in the PK treated and untreated plots, and significantly exceeded the values of NK fertilized areas. Presumably the better N availability promoted the development of nitrophilic weeds, while the mortality of other small species increased.Winter wheat and maize forecrops had no visible influence on the diversity and the intensity of weediness. On the contrary, there were consistent differences in the density of certain weed species in accordance to the applied nutrients. A. artemisiifolia was present in the largest number in the untreated control and PK fertilized plots. The density of S. halepense and H. annuus was also significantly higher in the control areas. The number of their individuals was smaller in those plots where N containing fertilizers were used. Contrary to them, the density of D. stramonium, C. album and C. hybridum was the highest in the NPK treatments.

GERAKAN SOSIAL MASYARAKAT KAMPUNG LABALUBA DESA KONTUMERE KECAMATAN KABAWO KABUPATEN MUNA TAHUN 1960-1980

2020 ◽  
Vol 4 (4) ◽  
Author(s):  
Nurwan Nurwan ◽  
Ali Hadara ◽  
La Batia
Keyword(s):  
Social Movements ◽  
Local Government ◽  
Social Movement ◽  
Negative Effects ◽  
Movement Process ◽  
The People ◽  
The Social ◽  
The Government ◽  
The Village ◽  
The City

ABSTRAK: Inti pokok masalah dalam penelitian ini meliputi latar belakang gerakan sosial masyarakat Kampung Labaluba Desa Kontumere Kecamatan Kabawo Kabupaten Muna, Faktor-faktor yang mendorong gerakan sosial masyarakat Kampung Labaluba Desa Kontumere Kecamatan Kabawo Kabupaten Muna, proses gerakan sosial masyarakat Kampung Labaluba Desa Kontumere Kecamatan Kabawo Kabupaten Muna dan akibat gerakan sosial masyarakat Labaluba Desa Kontumere Kecamatan Kabawo Kabupaten Muna? Latar belakang gerakan sosial masyarakat Kampung Labaluba yaitu keadaan kampungnya yang hanya terdiri dari beberapa kepala keluarga tiap kampung dan jarak yang jauh masing-masing kampung membuat keadaan masyarakatnya sulit untuk berkomnikasi dan tiap kampung hanya terdiri dari lima sampai dengan tujuh kepala keluarga saja. Kampung ini letaknya paling timur pulau Muna terbentang dari ujung kota Raha sekarang sampai kampung Wakuru yang saat ini. Kondisi ini juga yang menjadi salah satu faktor penyebab kampung ini kurang berkembang baik dibidang ekonomi, sosial politik, pendidikan maupun di bidang kebudayaan. Keadaan ini diperparah lagi dengan sifat dan karakter penduduknya yang masih sangat primitif. Faktor yang mendorong adanya gerakan sosial masyarakat Kampung Labaluba Desa Kontumere Kecamatan Kabawo Kabupaten Muna adalah adanya ketidaksesuaian antara keinginan pemerintah setempat dan masyarakat yang mendiami Kampung Labaluba pada waktu itu. Sedangkan proses gerakan sosial masyarakat Kampung Labaluba Desa Kontumere Kecamatan Kabawo Kabupaten Muna bermula ketika pemerintah seolah memaksakan kehendaknya kepada rakyat yang menyebabkan rakyat tidak setuju dengan kebijakan tersebut. Akibat yang ditimbulkan dari adanya gerakan sosial masyarakat Kampung Labaluba Desa Kontumere Kecamatan Kabawo Kabupaten Muna terbagi dua yaitu akibat positif dan akibat negatif.Kata Kunci: Gerakan Sosial, Factor dan Dampaknya ABSTRACT: The main issues in this study include the background of the social movement of Labaluba Village, Kontumere Village, Kabawo Sub-District, Muna District, Factors that encourage social movements of Labaluba Kampung Sub-village, Kontumere Village, Kabawo Sub-District, Muna District, the social movement process of Labaluba Village, Kontumere Village, Kabawo Sub-District Muna Regency and due to Labaluba community social movements Kontumere Village Kabawo District Muna Regency? The background of the Labaluba Kampung community social movement is that the condition of the village consists of only a few heads of households per village and the distance of each village makes it difficult for the community to communicate and each village only consists of five to seven households. This village is located east of the island of Muna stretching from the edge of the city of Raha now to the current village of Wakuru. This condition is also one of the factors causing the village to be less developed in the economic, social political, educational and cultural fields. This situation is made worse by the very primitive nature and character of the population. The factor that motivated the existence of the social movement of Labaluba Village in Kontumere Village, Kabawo Subdistrict, Muna Regency was the mismatch between the wishes of the local government and the people who inhabited Labaluba Village at that time. While the process of social movements in Labaluba Village, Kontumere Village, Kabawo District, Muna Regency began when the government seemed to impose its will on the people, causing the people to disagree with the policy. The consequences arising from the existence of social movements in Labaluba Village, Kontumere Village, Kabawo District, Muna Regency are divided into two, namely positive and negative effects. Keywords: Social Movements, Factors and their Impacts

scholarly journals Opportunities and limits of controlled-environment plant phenotyping for climate response traits

2021 ◽  
Author(s):  
Anna Langstroff ◽  
Marc C. Heuermann ◽  
Andreas Stahl ◽  
Astrid Junker
Keyword(s):  
Crop Production ◽  
Field Trials ◽  
Plant Phenotyping ◽  
Controlled Environment ◽  
Climate Response ◽  
Negative Effects ◽  
Phenotypic Data ◽  
Non Invasive ◽  
Controlled Environments ◽  
Response Traits

AbstractRising temperatures and changing precipitation patterns will affect agricultural production substantially, exposing crops to extended and more intense periods of stress. Therefore, breeding of varieties adapted to the constantly changing conditions is pivotal to enable a quantitatively and qualitatively adequate crop production despite the negative effects of climate change. As it is not yet possible to select for adaptation to future climate scenarios in the field, simulations of future conditions in controlled-environment (CE) phenotyping facilities contribute to the understanding of the plant response to special stress conditions and help breeders to select ideal genotypes which cope with future conditions. CE phenotyping facilities enable the collection of traits that are not easy to measure under field conditions and the assessment of a plant‘s phenotype under repeatable, clearly defined environmental conditions using automated, non-invasive, high-throughput methods. However, extrapolation and translation of results obtained under controlled environments to field environments is ambiguous. This review outlines the opportunities and challenges of phenotyping approaches under controlled environments complementary to conventional field trials. It gives an overview on general principles and introduces existing phenotyping facilities that take up the challenge of obtaining reliable and robust phenotypic data on climate response traits to support breeding of climate-adapted crops.

scholarly journals Investigating the Spatio-Temporal Variation of Soil Moisture and Agricultural Drought towards Supporting Water Resources Management in the Red River Basin of Vietnam

2021 ◽  
Vol 13 (9) ◽  
pp. 4926
Author(s):  
Nguyen Duc Luong ◽  
Nguyen Hoang Hiep ◽  
Thi Hieu Bui
Keyword(s):  
Soil Moisture ◽  
River Basin ◽  
Temporal Dynamics ◽  
Regional Scale ◽  
Dry Season ◽  
Red River ◽  
Agricultural Drought ◽  
Severe Drought ◽  
Red River Basin ◽  
Spatio Temporal

The increasing serious droughts recently might have significant impacts on socioeconomic development in the Red River basin (RRB). This study applied the variable infiltration capacity (VIC) model to investigate spatio-temporal dynamics of soil moisture in the northeast, northwest, and Red River Delta (RRD) regions of the RRB part belongs to territory of Vietnam. The soil moisture dataset simulated for 10 years (2005–2014) was utilized to establish the soil moisture anomaly percentage index (SMAPI) for assessing intensity of agricultural drought. Soil moisture appeared to co-vary with precipitation, air temperature, evapotranspiration, and various features of land cover, topography, and soil type in three regions of the RRB. SMAPI analysis revealed that more areas in the northeast experienced severe droughts compared to those in other regions, especially in the dry season and transitional months. Meanwhile, the northwest mainly suffered from mild drought and a slightly wet condition during the dry season. Different from that, the RRD mainly had moderately to very wet conditions throughout the year. The areas of both agricultural and forested lands associated with severe drought in the dry season were larger than those in the wet season. Generally, VIC-based soil moisture approach offered a feasible solution for improving soil moisture and agricultural drought monitoring capabilities at the regional scale.

Interactive effect of biochar and plant growth-promoting bacterial endophytes on ameliorating salinity stress in maize

2015 ◽  
Vol 42 (8) ◽  
pp. 770 ◽  
Author(s):  
Saqib Saleem Akhtar ◽  
Mathias Neumann Andersen ◽  
Muhammad Naveed ◽  
Zahir Ahmad Zahir ◽  
Fulai Liu
Keyword(s):  
Plant Growth ◽  
Salinity Stress ◽  
Crop Production ◽  
Interactive Effect ◽  
Nutrient Balance ◽  
Bacterial Strains ◽  
Negative Effects ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Salt Affected Soils

The objective of this work was to study the interactive effect of biochar and plant growth-promoting endophytic bacteria containing 1-aminocyclopropane-1-carboxylate deaminase and exopolysaccharide activity on mitigating salinity stress in maize (Zea mays L.). The plants were grown in a greenhouse under controlled conditions, and were subjected to separate or combined treatments of biochar (0% and 5%, w/w) and two endophytic bacterial strains (Burkholderia phytofirmans (PsJN) and Enterobacter sp. (FD17)) and salinity stress. The results indicated that salinity significantly decreased the growth of maize, whereas both biochar and inoculation mitigated the negative effects of salinity on maize performance either by decreasing the xylem Na+ concentration ([Na+]xylem) uptake or by maintaining nutrient balance within the plant, especially when the two treatments were applied in combination. Moreover, in biochar-amended saline soil, strain FD17 performed significantly better than did PsJN in reducing [Na+]xylem. Our results suggested that inoculation of plants with endophytic baterial strains along with biochar amendment could be an effective approach for sustaining crop production in salt-affected soils.

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