scholarly journals Impact of Herbicides on Non-Target Organisms in Sustainable Irrigated Rice Production Systems: State of Knowledge and Future Prospects

10.5772/13568 ◽  
2011 ◽  
Author(s):  
Victor Galhano ◽  
Laranjo Gomes ◽  
Fernndez-valientec Eduardo ◽  
Romeu Videira ◽  
Francisco Peixoto
Keyword(s):  
Production Systems ◽  
Rice Production ◽  
Future Prospects ◽  
Irrigated Rice

scholarly journals DETERMINANTS OF YIELD GAP IN RAINFED AND IRRIGATED RICE PRODUCTION SYSTEMS – EVIDENCE FROM HOUSEHOLD SURVEY IN KWARA STATE, NIGERIA

2017 ◽  
Vol 16 (1) ◽  
pp. 25-33
Author(s):  
Raphael Olanrewaju Babatunde ◽  
◽  
Mercy Funke Salami ◽  
Baba Abdullahi Muhammed
Keyword(s):  
Production Systems ◽  
Household Survey ◽  
Rice Production ◽  
Yield Gap ◽  
Irrigated Rice

scholarly journals Asian Countries in the Global Rice Market

2017 ◽  
Vol 65 (2) ◽  
pp. 679-688 ◽  
Author(s):  
Vladimir Milovanovic ◽  
Luboš Smutka
Keyword(s):  
Linear Regression ◽  
Multiple Linear Regression ◽  
Production Systems ◽  
Rice Production ◽  
Consumption Patterns ◽  
Future Prospects ◽  
Stepwise Multiple Linear Regression ◽  
Asian Countries ◽  
Rice Market ◽  
Key Drivers

Rice is an important Asian commodity, a region with diverse production systems and consumption patterns. With an increasing population leading to an increase in demand, the main drivers which determine rice production need to be identified. The study thus attempts to identify and assess the key drivers of rice production and the future prospects in major rice producing countries within the region using simple and stepwise multiple linear regression. In most of the countries, rice production was found to be determined by indicators such as yield, country consumption and country population, each accounting for about 90 percent of variation in rice production. Among the mentioned indicators, country population should be given the most weight to as majority of rice is consumed by humans, thus validating the need to address the necessity to enhance rice production that commensurate with an increasing population.

scholarly journals Quantifying Greenhouse Gas Emissions from Irrigated Rice Production Systems in Ghana

2020 ◽  
Vol 11 (11) ◽  
pp. 938-953
Author(s):  
Stephen Narh ◽  
Daniel A. Darko ◽  
Samuel S. Koranteng ◽  
Abigail Tettey ◽  
Kwabena M. Agyei ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Production Systems ◽  
Rice Production ◽  
Irrigated Rice ◽  
Gas Emissions

Exposure of Gambian children to Anopheles gambiae malaria vectors in an irrigated rice production area

1995 ◽  
Vol 9 (1) ◽  
pp. 50-58 ◽  
Author(s):  
S. W. LINDSAY ◽  
J. R. M. ARMSTRONG SCHELLENBERG ◽  
H. A. ZEILER ◽  
R. J. DALY ◽  
F. M. SALUM ◽  
...  
Keyword(s):  
Anopheles Gambiae ◽  
Rice Production ◽  
Malaria Vectors ◽  
Irrigated Rice ◽  
Production Area

Ground cover rice production systems are more adaptable in cold regions with high content of soil organic matter

2014 ◽  
Vol 164 ◽  
pp. 74-81 ◽  
Author(s):  
Meiju Liu ◽  
Weiling Liang ◽  
Hang Qu ◽  
Gengyin Zhi ◽  
Qiuxue Chen ◽  
...  
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Production Systems ◽  
Ground Cover ◽  
Rice Production ◽  
Cold Regions

scholarly journals A Way Forward to Combat Insect Pest in Rice

2021 ◽  
Vol 25 (1) ◽  
pp. 1-22
Author(s):  
MP Ali ◽  
B Nessa ◽  
MT Khatun ◽  
MU Salam ◽  
MS Kabir
Keyword(s):  
Yield Loss ◽  
Production Systems ◽  
Insect Pests ◽  
Insect Pest ◽  
Brown Planthopper ◽  
Mobile App ◽  
Rice Production ◽  
Economic Losses ◽  
Pest Species ◽  
Management Options

The damage caused by insect pest is the continual factor for the reduction of rice production. To date, 232 rice insect pest species are identified in Bangladesh and more than 100 species of insects are considered pests in rice production systems globally, but only about 20 - 33 species can cause significant economic loss. The major goal of this study is to explore all the possible ways of developed and proposed technologies for rice insect pests management and minimize economic losses. Insect pests cause 20% average yield loss in Asia where more than 90% of the world's rice is produced. In Bangladesh, outbreak of several insects such as rice hispa, leafroller, gallmidge, stem borers and brown planthopper (BPH) occurs as severe forms. Based on previous reports, yield loss can reach upto 62% in an outbreak situation due to hispa infestation. However, BPH can cause 44% yield loss in severe infestested field. To overcome the outbreaks in odd years and to keep the loss upto 5%, it is necessary to take some preventive measures such as planting of resistant or tolerant variety, stop insecticide spraying at early establishment of rice, establish early warning and forecasting system, avoid cultivation of susceptible variety and following crop rotation. Subsequent quick management options such as insecticidal treatment for specific insect pest should also be broadcasted through variety of information systems. Advanced genomic tool can be used to develop genetically modified insect and plants for sustainable pest management. In addition, to stipulate farmers not use insecticides at early crop stgae and minimize general annualized loss, some interventions including training rice farmers, regular field monitoring, digitalization in correct insect pests identification and their management (example; BRRI rice doctor mobile app), and demonstration in farmers field. Each technology itself solely or combination of two or more or all the packages can combat the insect pests, save natural enemies, harvest expected yield and contribute to safe food production in Bangladesh. Bangladesh Rice J. 25 (1) : 1-22, 2021

scholarly journals Studies on nitrogenase activity of diazotrophic isolates from different rice production systems

2016 ◽  
Vol 8 (1) ◽  
pp. 284-289
Author(s):  
S. Kanimoli ◽  
K. Kumar
Keyword(s):  
Acetylene Reduction ◽  
Tamil Nadu ◽  
Production Systems ◽  
Nitrogenase Activity ◽  
Rice Production ◽  
Lowland Rice ◽  
Aerobic Rice ◽  
Marked Variation ◽  
Reduction Assay ◽  
First Time

The present study was carried out to evaluate the nitrogen fixing ability of diazotrophs isolated from the rhizosphere soils of rice which were grown in three different rice growing systems. A total of hundred and ten isolates obtained were subjected to Acetylene Reduction Assay (ARA) and ninety eight isolates recorded significant amount of nitrogenase activity in a range of 185.73 to 3794.55 nmoles of ethylene mg of protein-1 h-1. The highest nitrogenase activity was recorded by Derxia (3794.55 nmoles of ethylene mg of protein-1 h-1) isolated from Trichy (lowland). Among the three different rice production systems, isolates obtained from lowland rice (Derxia – 3794.5 nmoles of ethylene mg of protein-1 h-1) recorded higher nitrogenase activity followed by Aerobic (Pseudomonas - 2194.89 nmoles of ethylene mg of protein-1 h-1) and SRI (Azotobacter - 1971.85 nmoles of ethylene mg of protein-1 h-1) rice isolates. The results revealed marked variation in the ARA of the diazotrophic isolates obtained from lowland, SRI and Aerobic rice. The nitrogenase activity of diazotrophs from rice fields have been reported earlier but the nitrogenase activity of diazotrophs from three different rice production systems from various parts of Tamil Nadu is reported for the first time from India.

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