scholarly journals Practices and Technologies for the Management of Key Maize Production Constraints during Kharif Season in East Champaran District – Review

2019 ◽  
Vol 7 (2) ◽  
pp. 158-164
Author(s):  
Hillary M. O. Otieno
Keyword(s):  
Fall Armyworm ◽  
Extension Agents ◽  
Rabi Season ◽  
Maize Production ◽  
Kharif Season ◽  
Production Constraints ◽  
Maize Cultivars ◽  
High Prevalence ◽  
Storage Methods ◽  
Bihar State

Maize production is affected by numerous biotic and abiotic related challenges in East Champaran District, Bihar State, India. The damages caused by these challenges are influenced by the season; high prevalence during Kharif season compared to Rabi season. The solution to these constraints calls for enhanced research-extension-farmer linkages to ensure better development and dissemination of technologies for adoption. Among these constraints, research should target developing varieties that are tolerant to water-stress, fall armyworm, stalk borer and aflatoxin attacks; and better site-specific soil infertility management. Besides, solutions to technical challenges like inappropriate maize spacing, poor and untimely weed control, use of local maize cultivars, poor storage methods, are already available and could effectively be managed through the use of extension agents to train and diffuse them among farmers.

scholarly journals Outbreaks of the Fall Armyworm (Spodeptera frugiperda), and Maize Production Constraints in Zambia with Special Emphasis on Coping Strategies

2021 ◽  
Vol 13 (19) ◽  
pp. 10771
Author(s):  
Chapwa Kasoma ◽  
Hussein Shimelis ◽  
Mark D. Laing ◽  
Admire Shayanowako ◽  
Isack Mathew
Keyword(s):  
Coping Strategies ◽  
Management Practices ◽  
Arable Land ◽  
Crop Protection ◽  
Fall Armyworm ◽  
Sub Saharan Africa ◽  
Invasive Pest ◽  
Preference Ranking ◽  
Maize Production ◽  
Production Constraints

The fall armyworm (FAW) (Spodoptera frugiperda J.E. Smith) is an invasive pest of maize, as well as other important cereals and vegetables, threatening food systems and biodiversity in Sub-Saharan Africa. This study aimed to assess the outbreaks of the FAW, farmers’ perceived production constraints, and coping strategies in maize production in Zambia. A participatory rural appraisal (PRA) study was conducted in two FAW-affected maize production districts in Zambia in 2017 and 2018. Data were collected using semi-structured questionnaires, preference ranking, and focused group discussions. Crop losses due to FAW, the high cost of fertilizers, and a limited availability of arable land were the major production constraints across the districts. There were significant differences (X2 = 12.415; p = 0.002) in the severity of FAW infestation between the two districts in 2017. Notable FAW coping strategies used by the respondent farmers included cultural and landscape management practices, chemical pesticides, and crushing of FAW larvae. There was a disparity between male and female respondents who perceived social, agronomic management, and crop protection-related factors that influenced the choice of a maize variety. Information presented here will serve as a basis for FAW-resistant cultivar development and deployment of the integrated pest management methods for Zambia.

scholarly journals Spread and impact of fall armyworm (Spodoptera frugiperda J.E. Smith) in maize production areas of Kenya

2020 ◽  
Vol 292 ◽  
pp. 106804 ◽  
Author(s):  
Hugo De Groote ◽  
Simon C. Kimenju ◽  
Bernard Munyua ◽  
Sebastian Palmas ◽  
Menale Kassie ◽  
...  
Keyword(s):  
Spodoptera Frugiperda ◽  
Fall Armyworm ◽  
Maize Production ◽  
Production Areas

scholarly journals Dynamics of Different Fractions of soil Potassium in an Inceptisol under Subtropical Rice-Rice System

2020 ◽  
pp. 17-30
Author(s):  
Raghabananda Nayak ◽  
Kumbhakarna Rout
Keyword(s):  
Soil Depth ◽  
Block Design ◽  
Field Studies ◽  
Water Soluble ◽  
Potassium Content ◽  
Rabi Season ◽  
Exchangeable K ◽  
Kharif Season ◽  
Soil Potassium ◽  
Randomized Block Design

Field studies were carried out in 2014-15 rabi season and 2015 kharif season at central farm of OUAT, Odisha, India to evaluate different fractions of potassium at different soil depth at different stages of rice crop. The experiment was laid out in randomized block design with 12 treatments and 4 replications. The study revealed that water soluble K, exchangeable K and non exchangeable K content was highest in 100%NPK+FYM+Lime.Watersoluble K decreased from tillering to harvesting for all the treatments in both the seasons. Exchangeable K decreased in rabi season but increased in kharif season through the stages of growth. Non exchangeable K increased from tillering to harvesting in both seasons. Lime application has increased three forms of potassium over 100%NPK treatment. There was decrease in potassium content with depth. Potassium content in kharif season is less than rabi. The correlation between grain yield is highest with non exchangeable K in rabi and exchangeable K in kharif. The K uptake is best correlated with non exchangeable K in rabi and water soluble K in kharif season.

scholarly journals Effect of Interaction between Traits of Different Genotype Maize in Six Fertilizer Level by GGE Biplot Analysis in Hungary

2019 ◽  
Vol 15 (1) ◽  
pp. 23-35 ◽  
Author(s):  
Seyed Mohammad Nasir Mousavi ◽  
Károly Kith ◽  
János Nagy
Keyword(s):  
Gge Biplot ◽  
Average Yield ◽  
Maize Production ◽  
Maize Cultivars ◽  
Variable Level ◽  
Fourth Dose ◽  
Npk Fertilizer ◽  
Hybrid Maize ◽  
The University ◽  
The Given

Abstract Hungary was one of the main countries in the world as regards the yields reached in maize production. The research was conducted to appraise the effect of NPK fertilizer on traits of different hybrid maize (Fao410, Fao340) at the University of Debrecen and our experiment was carried out in Centre for Agricultural Sciences, Institute of Crop Sciences at Látókép in 2018. NPK fertilizer was applied in six different combinations (0-0-0 control, 30-23-27 first dose, 60-46-54 second dose, 90-69-81 third dose, 120-92-108 fourth dose and 150-115-135 fifth dose kg · ha−1). The result of compound variance showed the level of fertilizer and interaction between fertilizer and genotypes were significant in one percent. Effect of genotypes was a variable level of fertilizer and providing a different yield in the level of fertilizer. The weight of seeds in ear and weight of ear were important traits in the average yield on Fao410 hybrid. Also, the fourth of the fertilizer level was the best level of fertilizer for yield on Fao410 and Fao340. the weight of fresh plant and weight of seeds in ear were highest relation with yield in H340 hybrid. The results of this research can successfully contribute to the science of maize cultivars, the given adapted hybrid to the discovery of their traits and to an application of fertilizers.

scholarly journals Socio-economic analysis of open pollinated improved and hybrid maize production in Sindhupalchok district of Nepal

2021 ◽  
Vol 4 (1) ◽  
pp. 130-139
Author(s):  
Grace Tiwari ◽  
Chandan K.C. ◽  
Praseed Thapa ◽  
Astha Shrestha
Keyword(s):  
Household Head ◽  
Fall Armyworm ◽  
T Test ◽  
Maize Production ◽  
Access To Credit ◽  
Maize Productivity ◽  
Maize Varieties ◽  
Hybrid Maize ◽  
The Cost ◽  
Level Training

The study was conducted from April to June, 2020 for comparative analysis of socioeconomic factors and profitability between Open Pollinated Improved (OPI) varieties and Hybrid varieties on maize production in Sindhupalchok district of Nepal. A structured questionnaire was administered to 80 randomly selected households i.e. 48 HHs cultivated OPI and 32 HHs cultivated hybrid maize varieties.  Descriptive statistics, unpaired t-test, multiple linear regressions and indexing were used for data analysis using statistical tools- SPSS version 25 and MS-Excel. Linear regression model revealed that area under maize (5% level), education (5% level), age of household head (1% level), training (1% level), access to credit (5% level) and choice of seed (1 % level) significantly influenced maize production. In addition, unpaired t-test revealed that the productivity of hybrid maize varieties was significantly higher (1% level) than OPI varieties. Fall Armyworm infestation was found to more severe in OPI varieties (5% level) than hybrid. Furthermore, B: C ratio of hybrid varieties (1.59) indicated hybrid maize to be more profitable than OPI (1% level). However, the total cost of cultivation along with the cost of seed per hectare of OPI was found to be lower than hybrid varieties (1% level) thereby significantly increasing the area under maize production for OPI varieties (1% level).  Indexing identified- lack of availability of quality seeds and fertilizers (I= 0.78) as the major problem associated with maize production. Ensuring access to quality seeds and fertilizer at subsidy, mechanization and efficient extension services focused on development of affordable hybrid maize varieties or high yielding OPI and its adoption among the farmers in order to increase maize productivity is recommended.

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