Showing 1,301 - 1,320 results of 1,400 for search '"rice cultivation"', query time: 7.45s Refine Results
  1. 1301

    Métodos de extração para quantificação de cobre disponível em fertilizantes Extraction methods for quantification of available copper in fertilizers by Ana Rosa Ribeiro Bastos, Janice Guedes de Carvalho, Alfredo Scheid Lopes, José Carlos Alcarde

    Published 2007-04-01
    “…A residual effect of Cu was observed in the soil for all sources after the second rice cultivation. In view of the differences of the sources regarding Cu solubility and agronomic efficiency, the use of a second warranty control is suggested to determine the Cu content besides that of the total content. …”
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    Article
  2. 1302

    The Response of Different Rice Cultivars (Oryza sativa L.) to Different Weed Management Methods under Direct Cultivation System by A Alamian Daronkola, F Zaefarian, H Abadian, I Mansouri

    Published 2022-09-01
    “…Economic efficiency, faster and easier cultivation, reduction of growth period and earlier maturity (7-10 days), needing to less labour, higher water efficiency, more mechanization and reduction of rice vulnerability due to end-of-season drought are some benefit of direct rice cultivation; while, the most important problem in this planting system is weed control, and if weeds are controlled properly; the yield of rice in direct seeding will be almost equal to that of transplanting system. …”
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    Article
  3. 1303

    Effect of Foliar Spraying of Gibberellins and Brassinolide on Cadmium Accumulation in Rice by Bei Li, Song Wang, Xiaoshuang You, Zhenzhou Wen, Guirong Huang, Caicheng Huang, Qiaoxian Li, Kuiyuan Chen, Yihan Zhao, Minghua Gu, Xiaofeng Li, Yanyan Wei, Yan Qin

    Published 2023-04-01
    “…Cadmium (Cd) is one of the heavy metals that contaminate rice cultivation, and reducing Cd contamination in rice through agronomic measures is a hot research topic. …”
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    Article
  4. 1304

    Alleviating soil acidity using basalt for improvement of rice (Oryza sativa L.) yield grown in an acid sulphate soil by Mohd Ali Raini, Siti Shazana

    Published 2013
    “…This study was conducted to ameliorate an acid sulfate soil in the Semerak- Kemasin Integrated Agriculture Development Project (IADP) located in Kelantan, Peninsular Malaysia, for rice cultivation using ground magnesium limestone (GML), and ground basalt. …”
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    Thesis
  5. 1305

    Ecobiological aspects of invasive apple snails (Pomacea spp.) in rice fields, Peninsular Malaysia by Ahmed, Gilal Arfan

    Published 2015
    “…Since their introduction, Pomacea spp. have damaged vast area under rice cultivation and are major threat to rice self sufficiency in Malaysia. …”
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    Thesis
  6. 1306

    Organic and mineral amendments on rice (oryza sativa L.) yield and nutrient recovery efficiency by Perumal, Palanivell

    Published 2016
    “…Incorporating crude humic substances or chicken littler biochar in the Malaysian rice cultivation is economically viable compared to the existing practice. …”
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    Thesis
  7. 1307

    Improvement of acid soils and rice (Oryza sativa L.) productivity using organic amendments from organic wastes by Maru, Ali

    Published 2019
    “…In the field study, four replicates of each treatments arranged using Randomized Complete Block Design were evaluated in first, second, and third planting cycles and thereafter, rice grain quality was determine using dielectric analysis whereas soil physico-chemical properties characterization, soil ammonia loss estimation, plants growth variables, plants nutrients use efficiency, and economic viability of using the soil organic amendments in rice cultivation were determined using standard procedures. …”
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    Thesis
  8. 1308

    Fungal pathogens associated with water hyacinth (Eichhornia crassipes Mart.) and their potential as biological control agents by Hassan, Iznee Rehanna

    Published 2021
    “…Water hyacinth also disrupts human activities such as in rice cultivation area, irrigation, water drainage, fishing for living and also recreational activities. …”
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    Thesis
  9. 1309

    Acetylcholinesterase enzyme activity in carp brain and muscle after acute exposure to diafuran Atividade da enzima acetilcolinesterase em cérebro e músculo de carpas após exposição... by Jaqueline Ineu Golombieski, Enio Marchesan, Edinalvo Rabaioli Camargo, Joseânia Salbego, Joele Schmitt Baumart, Vania Lucia Loro, Sérgio Luiz de Oliveira Machado, Renato Zanella, Bernardo Baldisserotto

    Published 2008-01-01
    “…Fingerlings of the common carp (Cyprinus carpio, Linnaeus, 1758), grass carp (Ctenopharyngodon idella, Valenciennes, 1844), and bighead carp (Aristichthys nobilis, Richardson, 1845) were exposed to diafuran, an insecticide widely used during rice cultivation in Southern Brazil. The aim of this study was to verify the relationship between the lethal concentration (LC50) of diafuran and the acetylcholinesterase (AChE) activity in brain and muscle tissues of these species as a possible early biomarker of exposure to this insecticide. …”
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  10. 1310
  11. 1311

    Ammonia volatilization and physiological growth of MR219 rice variety under split urea fertilization and chicken litter biochar amendment on tropical acid soil by Maikol, Nathaniel

    Published 2019
    “…The findings of this present study suggest that, applying 41.67% and 30.03% of N fertilization after 15 and 35 days of transplanting, respectively is not recommended especially for soils on which the conventional rice cultivation is practiced. Rather, the 41.67%, 30.03%, 14.15%, and 14.15% of total N recommended by MADA to be applied on the 15, 35, 55, and 75 days after transplanting could be modified to 26.67%, 30.03%, 30.15%, and 14.15% of total N on the 10, 30, 50, and 70 days after transplanting respectively, to further increase the rice plants N uptake, Crop Recovery Efficiency, Agronomic Recovery Efficiency, and rice grain yield.…”
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    Thesis
  12. 1312

    Weed population dynamics and control in cultivated rice under different water regimes in the KADA region in Kelantan, Malaysia by Abdullah, Mohd Razif

    Published 2018
    “…However, high rice production was also observed in W3 (flooded at 5 cm depth until 45 DAS, followed by saturated), indicating that this water-saving regime could play an important role for rice cultivation under limited water condition. The rice production in transplanted plot was in 65.8% higher than in direct seeded plot. …”
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    Thesis
  13. 1313

    Genome-wide association studies in rice germplasm reveal significant genomic regions for root and yield-related traits under aerobic and irrigated conditions by Revadi Padmashree, Revadi Padmashree, Kalyani M. Barbadikar, Honnappa, Honnappa, Nakul D. Magar, Nakul D. Magar, Divya Balakrishnan, R. Lokesha, C. Gireesh, Anantha M. Siddaiah, Maganti Sheshu Madhav, Y. M Ramesha, Muralidhara Bharamappanavara, Amol S. Phule, P. Senguttuvel, J. R. Diwan, D. Subrahmanyam, Raman Menakshi Sundaram

    Published 2023-07-01
    “…The development of nutrient-use efficient rice lines is a priority amidst the changing climate and depleting resources viz., water, land, and labor for achieving sustainability in rice cultivation. Along with the traditional transplanted irrigated system of cultivation, the dry direct-seeded aerobic system is gaining ground nationwide. …”
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    Article
  14. 1314

    New Insights from Soil Microorganisms for Sustainable Double Rice-Cropping System with 37-Year Manure Fertilization by Jin Li, Kai-Luo Liu, Ji Chen, Jiang Xie, Yu Jiang, Guo-Qiang Deng, Da-Ming Li, Xian-Jiao Guan, Xi-Huang Liang, Xian-Mao Chen, Cai-Fei Qiu, Yin-Fei Qian, Wen-Jian Xia, Jia Liu, Chun-Rui Peng, Stephen M. Bell, Jin Chen

    Published 2023-01-01
    “…Altogether, this study spanning nearly four decades provides new perspectives for developing sustainable yet intensive rice cultivation to meet growing global demands.…”
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    Article
  15. 1315

    Estimation of nitrous oxide, carbon dioxide and methane emissions from selected rice soils in Malaysia using DNDC model by Gandahi, Rabail

    Published 2015
    “…Through DNDC model, four interacting sub-models: thermal/hydraulic, crop growth, decomposition, and denitrification were simulated. (Rice cultivation is an important source of GHGs that cause global warming. …”
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    Thesis
  16. 1316

    Combination of light stable isotopic and elemental signatures in Thai Hom Mali rice with chemometric analysis by Chunyapuk Kukusamude, Vichai Puripunyavanich, Supalak Kongsri

    Published 2023-03-01
    “…The 9 variables combined with LDA can distinguish Thai Hom Mali rice cultivated inside and outside the Thung Kula Rong-Hai Plain with 98.2 % correct classification and 94.6 % cross-validation. …”
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    Article
  17. 1317

    Exploitation of SAR and Optical Sentinel Data to Detect Rice Crop and Estimate Seasonal Dynamics of Leaf Area Index by Manuel Campos-Taberner, Francisco Javier García-Haro, Gustau Camps-Valls, Gonçal Grau-Muedra, Francesco Nutini, Lorenzo Busetto, Dimitrios Katsantonis, Dimitris Stavrakoudis, Chara Minakou, Luca Gatti, Massimo Barbieri, Francesco Holecz, Daniela Stroppiana, Mirco Boschetti

    Published 2017-03-01
    “…This paper presents and evaluates multitemporal LAI estimates derived from Sentinel-2A data on rice cultivated area identified using time series of Sentinel-1A images over the main European rice districts for the 2016 crop season [...]…”
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    Article
  18. 1318

    Chemical Analysis of Rice from Converted-to-Organic Paddy Field in Lombok Island by Lalu Rudyat Telly Savalas, I Nyoman Loka, Jannatin 'Ardhuha

    Published 2021-05-01
    “…Chemical analysis has been undertaken to investigate the nutrients compositions and the presence of residual pesticides from rice cultivated from converted-to-organic paddy fields in Lombok Island. …”
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    Article
  19. 1319

    Internal Versus Edge Row Comparison in Jajar Legowo 4:1 Rice Planting Pattern at Different Frequency of Fertilizer Applications by Kartika Kartika, Benyamin Lakitan, Nanda Sanjaya, Andi Wijaya, Sabaruddin Kadir, Astuti Kurnianingsih, Laily Ilman Widuri, Erna Siaga, Mei Meihana

    Published 2018-04-01
    “…In addition, the effects of timing and frequency of fertilizer applications on rice cultivated at riparian wetland also have to be understood. …”
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    Article
  20. 1320

    Investigating the Role of Education on Rice Waste Management with Emphasis on Environmental Protection and Health by Mohammadreza Shiran, Mehdi Charmchian Langerodi, Leila Najafian, Fatemeh Khaleghi

    Published 2021-01-01
    “…Materials and methods: This structural equation-based correlational survey was performed in 290 rice cultivators in Sari, north of Iran. The participants were selected based on Cochran's formula. …”
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