rice plant Articles

  • Uptake and distribution of Iodine in Rice plants

    Rice (Oryza sativa L.) plants were cultivated in an experimental field and separated at harvest into different components, including polished rice, rice bran, hull, straw, and root. The contents of iodine in these components and the soil were determined by inductively coupled plasma–mass spectrometry and radiochemical neutron activation analysis, respectively. Iodine content varied by more than ...

  • Simulating leaf appearance in rice

    Most rice (Oryza sativa L.) simulation models assume that only temperature affects leaf appearance rate (LAR). This assumption ignores results from controlled environment studies that show that LAR in rice is not constant with time (calendar days) under constant temperature. The Streck model, which takes into account age effects on LAR, improved the prediction of leaf appearance in winter wheat ...

  • Rice husk revolution

    India produces 200 million tonnes of paddy. One tonne paddy gives 700 kg of rice and 300 kg of rice husk. Rice husk has heating value (calorific value) of 3000 kcal per kg. So it is excellent fuel. So we can burn rice husk and produce steam and generate power from it. For villages 10 KW power plant based on steam engine is quite appropriate which can process 4000 kg. of paddy into unpolished rice ...


    By AADHUNIK GLOBAL ENERGY

  • U.S. Rice and NAFTA

    Implications The NAFTA agreement series begins our focus on commodities, with a look at rice. In 2016, one in every eight rows of rice planted in the United States made its way to our NAFTA partners. But recent moves by the governments of the United States, Mexico and Canada could lead to a change in the important Mexican and Canadian markets.  The Growth ...

  • Sustainable Farm Practices for Rice Farming

    Rice is the third-largest crop production, after sugarcane and maize. The main producers of rice are the nations of China, India, Indonesia, Bangladesh, and Vietnam. Rice is a staple crop. More than half the people in the world, about 3.5 billion people, rely on its production. Not only is rice a key source of food but it is also good source of income for many smallholder farmers. The Challenges ...


    By Agrivi Ltd

  • Basic Information of Rice Production Line

    The objective of a rice milling system is to remove the husk and the bran layers from paddy rice to produce whole white rice kernels that are sufficiently milled, free of impurities and contain a minimum number of broken kernels. The milling yield and quality of rice is dependent on the quality of the paddy, the milling equipment used and the skill of the mill operator. With the rapid ...

  • Predicting rice yield response to midseason nitrogen with plant area measurements

    A simple method is needed to aid farmers with midseason nitrogen (MSN) decisions in dry-seeded, delayed flood rice (Oryza sativa L.). This study was conducted to develop thresholds using visual and digital image measurements for predicting rice yield response to MSN. ‘Francis’ and ‘Cheniere’ rice were drill seeded on 19-cm row spacing from 2004 to 2006 on silt loam and clay soils at Glennonville ...

  • Turning abandoned rice fields into mangroves

    What do you do when mangroves fail to naturally recolonise abandoned rice fields in one of the most precious mangrove deltas of the world? Pieter van Eijk reports on a recent mission to Western Africa that paves the way for large-scale mangrove recovery through a so-called ‘ecological restoration’ approach. ...


    By Wetlands International

  • Distribution of arsenic and other minerals in rice plants affected by natural straighthead

    Because of the inconsistency and unpredictability of naturally occurring straighthead, arsenical herbicides are sometimes used to induce straighthead-like symptoms to study this sterility disorder. In 2005, an outbreak of naturally occurring (nonchemically induced) straighthead in rice (Oryza sativa L.) study fields in Stuttgart, AR provided an opportunity to examine the role of minerals in this ...

  • Rice straw composting and its effect on soil properties

    In Egypt, recycling rice straw and organic wastes is of great concern as well as improvement of soil properties. Rice straw compost could improve both organic waste recycling and soil quality. The aim of this study was to evaluate the effect of the rice straw compost, with or without water treatment residuals (WTR), on soil chemical properties and dry weight of canola. The results showed that the ...


    By BioCycle Magazine

  • Rice straw composting and its effect on soil properties

    In Egypt, recycling rice straw and organic wastes is of great concern as well as improvement of soil properties. Rice straw compost could improve both organic waste recycling and soil quality. The aim of this study was to evaluate the effect of the rice straw compost, with or without water treatment residuals (WTR), on soil chemical properties and dry weight of canola. The results showed that the ...


    By BioCycle Magazine

  • Things Should be Noticed during Operating Rice Transplanter

    Start the engine in the following orders: check whether there is full of oil in the engine; open the oil circuit and then open the throttle; check the whether the clutch is separate and the gear shift level is in the neutral position; start the engine. Before planting the rice seedlings, a test should be made to check whether the machine can transplanter the rice according ...


    By Amisy Farming Machinery

  • Rice seeding and nitrogen rate effects on yield and yield components of two rice cultivars

    Field research was conducted for 2 yr to investigate the relationship between rice (Oryza sativa L.) seeding rate and preflood nitrogen (N) rate utilizing long-grain rice cultivars planted into clay and silt loam soils. Rice cultivars included ‘Cheniere’ and ‘Wells’ seeded at 162, 323, and 646 seeds m–2. Nitrogen was applied before flooding at 67, 134, and 202 kg ha–1. No response to soil texture ...

  • Fluidised bed combustion and gasification of rice husk and rice straw – a state of art review

    Rice is cultivated in all the main regions of world. The worldwide annual rice production is 666 million tons for the year 2008. The combustion and gasification of rice husk/rice straw in fluidised bed reactors seems to be an attractive possibility of future for power generation, the solution of waste disposal problems and the reduction of greenhouse gases. In this paper, overview of fluidised ...


    By Inderscience Publishers

  • Application of two vermicomposts on a Rice crop: Effects on soil biological properties and rice quality and yield

    Vermicomposts have been considered as a soil additive to reduce the use of mineral fertilizers because they provide required nutrients, increase cation exchange capacity, and improve water-holding capacity. However, the effect of each vermicompost on soil properties and crop yield depends on its chemical composition. The main objective of this work was to study the effect of incorporating two ...

  • Stability of rice grain and whole kernel milling yield is affected by cultivar and date of planting

    The objectives of this study were to evaluate rice (Oryza sativa L.) cultivar stability and to characterize different planting dates for their consistency in grain yield and milling. Eight rice cultivars and seven planting dates were evaluated from 2003 to 2005 for a total of 19 yr x planting date environments. The coefficient of variation of cultivars and planting dates, a measure of relative ...

  • Study of agglomeration in 3.5 MW AFBC using rice husk particles

    The combustion of rice husk in fluidised bed combustors seems to be an attractive possibility for power generation in the future, keeping in view the waste disposal problems and the reduction of greenhouse gases. In commercial installations, the occurrence of agglomeration is still one of the main reasons for unscheduled outrages. In this paper, a review of agglomeration mechanism and its ...


    By Inderscience Publishers

  • Correlation and calibration of soil potassium availability with rice yield and nutritional status

    Soil testing is an important tool for estimating soil K availability and determining how much fertilizer must be applied to realize crop yield potential and minimize fertilizer costs. Our primary objectives were to correlate relative rice (Oryza sativa L.) yield with Mehlich-3 and 1 mol L–1 HNO3 extractable K, define sufficient whole-plant K concentrations at panicle differentiation (PD) and ...

  • Save and Grow: Pesticide Risk Reduction for Sustainable Intensification of Rice Production

    Outline Presentation Background: Agricultural Scenario (2010-2050) & Crop Intensification Risks =>indiscriminate use of agrochemicals in rice paddy systems Overview FAO Intervention: Integrated Approach for Pesticide Risk Reduction Farmer Ecosystem-Literacy Education: Farmers Field School Case Study: Philippines: Sustainable Intensification of ...


    By Wetlands International

  • Tissue-specific expression of rice CYP72A21 induced by auxins and herbicides

    Cytochrome monooxygenase P450s (CYPs) comprise one of the largest enzyme families in plants. Some P450s are involved in xenobiotic metabolism: they confer herbicide tolerance and are induced by chemical treatments. We isolated a novel P450 cDNA, CYP72A21 (accession number, AB237166), from rice (Oryza sativa L. cv. Nipponbare) seedlings treated with a mixture of 2,4-dichlorophenoxyacetic acid ...


    By Springer

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