Weedy rice represents an emerging threat to transplanted rice production systems in Japan

2018 ◽  
Vol 18 (2) ◽  
pp. 99-102 ◽  
Author(s):  
Toshiyuki Imaizumi
Keyword(s):  
Production Systems ◽  
Rice Production ◽  
Weedy Rice ◽  
Transplanted Rice

scholarly journals Quizalofop-p-ethyl Mixed with Synthetic Auxin and ACCase-Inhibiting Herbicides for Weed Management in Rice Production

2019 ◽  
Vol 2019 ◽  
pp. 1-7
Author(s):  
Eric P. Webster ◽  
Samer Y. Rustom ◽  
Benjamin M. McKnight ◽  
David C. Blouin ◽  
Gustavo M. Teló
Keyword(s):  
Weed Management ◽  
Production Systems ◽  
Rice Production ◽  
Weedy Rice ◽  
Red Rice ◽  
Synthetic Auxin

A study was conducted near Crowley, Louisiana, to evaluate the efficacy of quizalofop-p-ethyl mixed with different synthetic auxin and ACCase-inhibiting herbicides for barnyardgrass and weedy rice control in rice production systems. Quizalofop was applied at 0 or 120 g ai·ha−1 mixed with 2,4-D at 1336 g ai·ha−1, triclopyr at 282 g ai·ha−1, quinclorac at 420 g ai·ha−1, cyhalofop-butyl at 314 g ai·ha−1, or fenoxaprop-p-ethyl at 122 g ai·ha−1. Cyhalofop, fenoxaprop, 2,4-D, quinclorac, and triclopyr antagonized quizalofop for barnyardgrass control at 14 days after treatment (DAT). At 28 DAT, an antagonistic response persisted for barnyardgrass control, except when cyhalofop was mixed with quizalofop, which indicated a neutral response. Red rice, CLXL-745, and CL-111 control decreased due to antagonism of quizalofop when mixed with 2,4-D. However, quinclorac, triclopyr, cyhalofop, or fenoxaprop mixed with quizalofop resulted in a neutral response for red rice, CLXL-745, and CL-111 control at 28 DAT.

scholarly journals Influence of Nitrogen Management Regimes on Milling Recovery and Grain Quality of Aromatic Rice in Different Rice Production Systems

Agronomy ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1841
Author(s):  
Muhammad Ishfaq ◽  
Nadeem Akbar ◽  
Usman Zulfiqar ◽  
Saddam Hussain ◽  
Khadija Murtza ◽  
...  
Keyword(s):  
Grain Quality ◽  
Production Systems ◽  
Rice Production ◽  
Elongation Ratio ◽  
Rice Quality ◽  
Transplanted Rice ◽  
Management Regimes ◽  
Experimental Treatments ◽  
N Management

To examine the effect of nitrogen (N) management regimes on rice quality in different rice production systems, a field experiment was conducted in 2017 and 2018. The experimental treatments comprised of two production systems (transplanted rice: TPR and dry direct-seeded rice: DDSR) and six N management treatments (0, 50, 100, and 150 kg N ha−1 as basal, and 100 and 150 kg N ha−1 in three splits which were regarded as N1, N2, N3, N4, N5, and N6, respectively). The results revealed that the rice quality attributes, i.e., broken rice recovery, abortive kernel, bursting, and curling were increased by 8%, 14%, 8%, and 14%, respectively, under DDSR than TPR. In the case of N management, split application of N reduced the chalky kernel (44%), abortive kernel (23%), opaque kernel (31%), bursting (24%), and curling (31%), while kernel protein contents, water absorption ratio, cooked grain length, and elongation ratio were increased by 41%, 88%, 25%, and 26%, respectively, as compared to the basal application of N. In short, DDSR cultivation reduced the appearance and cooking quality traits but white head rice recovery and nutritional quality were comparable to TPR. However, N application in splits either in DDSR or in TPR potentially improved the grain quality of rice compared with the basal application.

Weedy Rice: An Emerging Threat for Direct-seeded Rice Production Systems in India

2013 ◽  
Vol 01 (01) ◽  
Author(s):  
Kanwar Singh ◽  
Virender Kumar ◽  
Yashpal S Saharawat ◽  
Mahesh Gathala
Keyword(s):  
Production Systems ◽  
Rice Production ◽  
Weedy Rice ◽  
Direct Seeded

scholarly journals PERFORMANCE OF AUS RICE IN DIFFERENT TILLAGE SYSTEMS AND CROP ESTABLISHMENT METHOD IN SOUTHWEST BANGLADESH

2018 ◽  
pp. 05-09
Author(s):  
LATIFUL BARI, SHARIF AHMED
Keyword(s):  
Production Cost ◽  
Production Systems ◽  
Rice Production ◽  
Total Production ◽  
Tillage Systems ◽  
Crop Establishment ◽  
Transplanted Rice ◽  
Net Profit ◽  
Production Technologies ◽  
Strip Tillage

High labor wage and irrigation water scarcity are the major constraints to becoming rice production less profitable and unsustainable in Bangladesh. To address these problems, rice production needed less water and less labor consuming production technologies. In traditional rice production systems which is puddled-transplanted rice (PTR), a significant amount of water and labor are used for tillage (wet) and transplanting operations. A farmers’ participatory on-farm trial was conducted to evaluate the performance of aus rice at different tillage systems and crop establishment methods in the southern part of Bangladesh. Wet tillage (puddled systems) to dry-tillage and transplanted rice to direct dry-seeded rice (DSR) may have the potential to reduce production cost by using less labor and water, resulting in higher profit. The trial examined tillage systems (strip tillage, reduced tillage and puddling) and crop establishment methods (direct dry-seeded and transplanted) in six farmers’ fields in aus 2015. Crop established by reduced-and strip-tillage in DSR conditions reduced crop duration by 7 d compared to PTR. Grain yield (4.4-4.6 t ha-1) was similar in DSR which is established by reduced-and strip-tillage conditions and PTR; however, total production cost in DSR was 15-18% lower than the PTR. Slightly higher but significantly similar gross income was recorded in PTR than DSR, however, net profit was significantly lower in PTR and it was due to higher production cost involvement. DSR has the potentiality of similar yield to PTR and reduces production cost which increases the net profit of rice production. 

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 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 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

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