rice seed Articles
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Toxicity of sulfate and chloride to early life‐stages of wild rice (Zizania palustris)
Despite its importance in the great lakes region of north America, wild rice (Zizania palustris) sensitivity to sulfate is not well understood. A 21‐day hydroponic experiment was performed to determine the toxicity of sulfate to wild rice seeds and seedlings. Effects of six sulfate concentrations ranging from 10 to 5,000 mg/l and of chloride salts at equivalent conductivity were evaluated to ...
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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 ...
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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 ...
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Sequence analysis of dssat to select optimum strategy of crop residue and nitrogen for sustainable rice-wheat rotation
Weather variability affects the production of most cropping systems, and rice (Oryza sativa L.)-wheat (Triticum aestivum L.) rotation is not an exception. Integrating weather forecasts with soil fertility management options is one way to combat the production decrease by anticipating weather variability along with sustaining the soil environment. Sequence analysis of DSSAT3.5 was used to select ...
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Can grains of the past help us weather storms of the future?
Combining science with traditional knowledge, researchers turn to ancient rice as a source of climate resilience In May 2009, Cyclone Aila wreaked havoc in eastern India. Clocking in at speeds of over 120 kilometers per hour, Aila hit the Sundarbans, the largest continuous block of mangrove forest in the world, located in the Ganga-Brahmaputra tidal delta on the Bay of Bengal. The storm killed ...
By Ensia
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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 ...
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Cottonseed Oil Press Machine
Cottonseed oil expeller machine is mainly composed of electrical control, automatic heating, adjustment, transmission, and vacuum oil filter. The screw is carburized by alloy steel to enhance surface hardness and wear resistance. The platter is ground by the surface grinding machine to ensure the finishing coat and increase the oil output. The surface of the machine is treated with stainless ...
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Fungal diseases are on the rise. Is environmental change to blame?
Scientists and physicians are looking for clues to a worrying increase in fungal infections and exploring ways to reduce the threat. Fungi are everywhere — from the mushrooms that decompose fallen logs in the forest, to the mold that grows in your bathtub, to the microscopic fungal cells that reside naturally on your skin. Scientists estimate there are 1.5 million species of fungi on the ...
By Ensia
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Flat die organic fertilizer granulator production line
Flat die organic fertilizer granulator production line Organic fertilizer is rich in organic matter and nutrients. It can not only directly provide nutrients for crops, but also activate potential nutrients in soil, enhance microbial activity and promote material transformation. The application of organic fertilizer can also improve soil physical and chemical properties, improve soil fertility ...
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