scholarly journals Crop Production and Global Warming

10.5772/24467 ◽  
2011 ◽  
Author(s):  
Masahumi Johkan ◽  
Masayuki Oda ◽  
Toru Maruo ◽  
Yutaka Shinohar
Keyword(s):  
Global Warming ◽  
Crop Production

scholarly journals ЗАРИМ ЗҮЙЛ УРГАМАЛ ДАХЬ ТЭЖЭЭЛИЙН ЭЛЕМЕНТҮҮДИЙГ ТОДОРХОЙЛСОН ДҮН

2016 ◽  
pp. 5-8
Author(s):  
Д Ганцэцэг
Keyword(s):  
Global Warming ◽  
Plant Tissue ◽  
Crop Production ◽  
Climate Changes ◽  
Nutrient Elements ◽  
Soil Atmosphere ◽  
Time Period

The nutrients required to grow plant is only one aspect of successful crop production. The source of nutrients to use and how the elements influenced by soil , atmosphere and water. Although 16 nutrients elements required to grow plants, 13 of them are taken up from the soil. Global warming and climate changes possible impact on nutrient elements of plant tissue and time period of growing so samples which are dominant plants, were gathered by Mungun morit , Tumentsogt and Ikhnart  sums  in June to August.  The samples was prepared for experiment as well as content of Mn , Ni, Pb ,Fe, Cd, Cu, Zn and Cr elements measured by AAS. By results of analysis, content of Iron in Potentilla acualis (in July) is higher than other elements as well as Cd and Pb are not out in all.

scholarly journals Pesticide Application and Food Safety Issue in Nepal

2009 ◽  
Vol 10 ◽  
pp. 128-132 ◽  
Author(s):  
P. Koirala ◽  
S. Dhakal ◽  
A. S. Tamrakar
Keyword(s):  
Global Warming ◽  
Food Safety ◽  
Crop Production ◽  
Current Practice ◽  
Safety Issue ◽  
Plant Diseases ◽  
Pesticide Application ◽  
Pest Population ◽  
Potential Health ◽  
Agriculture And Environment

It has been increasing pest population including weeds, invasive species, insects and insect vectors and plant diseases, which lead to increase pesticides on crop production. Some of the pesticides also contribute to global warming and the depletion of the ozone layer. Pesticides are the potential health hazards which have drawn attention to everyone. The current practice adopted in pesticides control in Nepal appears not enough in line with food safety. This has created a promising threat in food safety and human health. In turn, global warming is also likely to increase pesticide use and degrade food safety situation. Necessary measures should be adopted to curb upcoming alarming situation in food safety.Key words: Food safety; Global warming; Pesticides; NepalThe Journal of Agriculture and Environment Vol:10, Jun.2009 Page: 128-132

Comparison of five wheat simulation models In southern Alberta

1995 ◽  
Vol 75 (1) ◽  
pp. 61-68 ◽  
Author(s):  
A. Touré ◽  
D. J. Major ◽  
C. W. Lindwall
Keyword(s):  
Climate Change ◽  
Global Warming ◽  
Spring Wheat ◽  
Crop Production ◽  
Wheat Yield ◽  
Simulation Models ◽  
Epic Model ◽  
Impact Of Climate Change ◽  
Long Term Experiment ◽  
The Impact

Increasing concentrations of greenhouse gases are expected to result in global warming which will affect crop production. Crop modelling is a useful tool for assessing the impact of climate change on crop production. The objective of this study was to select an appropriate model for climate change studies. Five simulation models, EPIC, CERES, Century, Sinclair and Stewart, were assessed using data from a long-term experiment begun in 1911 on a clay loam (Dark Brown Chernozem) soil at Lethbridge, AB. Yields predicted by the five models were compared with actual spring wheat yields in continuous wheat, fallow-wheat and fallow-wheat-wheat rotations. The EPIC model gave the best simulation results over all rotations and the most accurate predictions of mean yields during droughts. It was concluded that the EPIC model had the greatest potential for assessing the impact of climate change on wheat yield. The Stewart model was the most accurate for unfertilized continuous wheat and fallow-wheat. The Sinclair model was most accurate for fertilized fallow-wheat and CERES was the most accurate model for fertilized continuous wheat. The Century model simulated average yield accurately but did not account for year-to-year variability. Key words: Global warming, crop simulation, spring wheat yields

scholarly journals Global Warming and Sea Level Rising: Impact on Agriculture and Food Security in Southern Coastal Region of Bangladesh

2020 ◽  
pp. 9-36
Author(s):  
M. A. Awal ◽  
M. A. H. Khan
Keyword(s):  
Global Warming ◽  
Food Security ◽  
Sea Level Rise ◽  
Sea Level ◽  
Crop Production ◽  
Coastal Region ◽  
Cropping Patterns ◽  
Coastal Belt ◽  
Boro Rice ◽  
And Sea Level

Climatologically, the entire southern coastal belt of Bangladesh is most vulnerable than the other parts of the country due to its spatial geo-morphological settings. Global warming and sea level rise are already observed and predicted to be occurred more with time. These bring real negative consequences on the agricultural production and food security, and livelihood for the people live in the coastal areas. Therefore, the study was conducted to analyze the effect of global warming and sea level rise on the agriculture and food security in southern coastal areas of Bangladesh. Both primary and secondary sources of information were collected. Stakeholder consultation, direct field visits and interview of climate affected people in the coastal region were carried out for collecting information on land-use and cropping patterns and adaptation measures to be taken to boost crop production against global warming and sea level rise. By the middle and end of the twenty first century, global annual mean temperature is predicted to be increased about 1.5oC and 2.5oC, respectively. These projected warming will lead to about 14, 32 and 88 cm sea level rise by 2030, 2050 and 2100, respectively which would cause inundation of about 8, 10 and 16 percent of total land masses in Bangladesh. Most of the coastal parts and associated islands of Khulna and Barisal divisions and western part of Chattagram division lie within one meter from sea level where incursion of saline water is common. It is predicted that these areas will be inundated and unsuitable for crop production due to upcoming sea level rise. The predominant crop in entire coastal belt is transplanted Aman with sporadic occurrences of Aus rice. The land in Boro rice season either loosely occupied by mungbean, grass pea, cowpea, groundnut, soybean, potato, sweet potato, chili etc or remained fallow until the following monsoon. A systemic analysis of all of the cyclones that originated from the Bay of Bengal since 1961 indicated that most devastating cyclones formation occurred from last quarter of April through May and from middle of October to November just prior to the harvest of Boro and Aman crops, respectively. Therefore, Boro and Aman rice harvests are mostly unpredictable every year posing great threat to the food security of the coastal people. These areas are criss-crossed by innumerable water canals or channels especially in Barisal and Khulna divisions which can be utilized for Boro rice cultivation in dry season despite some levels of salinity. Cultivation of salt-tolerant crop varieties could mitigate such hindrances. Introduction of saline tolerant Boro rice in coastal cropping patterns and/or advancing the harvesting times by a fortnight in both Aman and Boro rice seasons to avert cyclonic havoc not only ensure food security but also turn the entire coastal belt into a food surplus region.

scholarly journals Enterobacter sp. SA187 mediates plant thermotolerance by chromatin modification of heat stress genes

2020 ◽  
Author(s):  
Kirti Shekhawat ◽  
Arsheed Sheikh ◽  
Kiruthiga Mariappan ◽  
Rewaa Jalal ◽  
Heribert Hirt
Keyword(s):  
Global Warming ◽  
Transcription Factors ◽  
Heat Stress ◽  
Crop Production ◽  
Chromatin Modification ◽  
Extreme Temperature ◽  
Endophytic Bacterium ◽  
Beneficial Microbes ◽  
Stress Memory ◽  
Stress Genes

AbstractGlobal warming has become a critical challenge to food safety, causing severe yield losses of major crops worldwide. Heat acclimation empowers plants to survive under extreme temperature conditions but the potential of beneficial microbes to make plants thermotolerant has not been considered so far. Here, we report that the endophytic bacterium Enterobacter sp. SA187 induces heat tolerance in Arabidopsis thaliana by reprogramming the plant transcriptome to a similar extent as acclimation. Acclimation induces priming of heat stress memory genes such as APX2 and HSP18.2 via the transcription factors HSFA1A, B, D, and E and the downstream master regulator HSFA2. hsfa1a,b,d,e and hsfa2 mutants compromised both acclimation and bacterial priming through the same pathway of HSF transcription factors. However, while acclimation transiently modifies H3K4me3 levels at heat stress memory gene loci, SA187 induces the constitutive priming of these loci. In summary, we demonstrate the molecular mechanism by which SA187 imparts thermotolerance in A. thaliana, suggesting that beneficial microbes might be a promising way to enhance crop production under global warming conditions.

scholarly journals Agronomic Management Strategies for Yield-Scaled Global Warming Potential under Rice-Wheat Cropping System

2019 ◽  
pp. 1-14
Author(s):  
Suborna Roy Choudhury ◽  
Anupam Das ◽  
S. K. Gupta ◽  
Seema . ◽  
R. P. Sharma ◽  
...  
Keyword(s):  
Global Warming ◽  
Green Manure ◽  
Crop Production ◽  
Nutrient Management ◽  
Management Practice ◽  
Conventional Tillage ◽  
Soil Disturbance ◽  
Zero Tillage ◽  
Crop Establishment ◽  
Residue Retention

Greenhouse gas emissions have an indirect impact on crop production and are primary sources of the global warming. A field experiment was carried out to examine the effect of management practice (i.e. culmination of tillage and nutrient management) on GHGs emission and its subsequent effect on agronomic productivity and subsequent impact on global warming. There were three different crop establishment methods as main plot treatments: M1 (Rice: SRI, Wheat: Conventional tillage), M2 (Rice: Transplanted Puddle rice, Wheat: Conventional tillage + 30% residue incorporation), M3 (Rice: DSR, Wheat: Zero tillage + 30% residue retention) and four nutrient management as sub plot treatments viz. S1(100% of Recommended dose of fertilizer (RDF) through inorganic sources), S2 (75% of RDF through inorganic sources + 25% N of RDF through organic sources), S3 (50% of RDF through inorganic sources + 50% N of RDF through organic sources), S4 (S1 + mung bean as green-manure). After conducting three year of experiment (2013-2016), it has been found that the DSR emitted lower CH4 (1.39 mg m-2 hr-1), CO2 (0.57 mg m-2 hr-1) and N2O (0.36 mg m-2 hr-1) at the maximum tillering stage of rice. The same trend was followed under zero tillage with30% residue retention in wheat with lower emission range of all three gases i.e. 0.95, 1.29 and 0.58 mg m-2 hr-1 respectively. Lowest emission of CH4 and CO2 with the values of 1.87 and 1.24 mg m-2 hr-1 respectively from rice and 1.57 and 3.23 mg m-2 hr-1 from wheat was observed under 100% RDF through inorganic fertilization, whereas, N2O emission was just reverse to emission pattern of CH4 and CO2. Crop establishment through minimum soil disturbance with residue retention under rice- wheat cropping sequence along with 100% RDF through mineral fertiliser along with green manure could be one of the stable agronomic strategies under lower GHGs emission scenarios.

Sign in / Sign up

Export Citation Format

Share Document