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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4. Отображено 4.
17-08-2021 дата публикации

Seedling raising substrate capable of reducing cadmium enrichment capacity of crops, preparation method and application of seedling raising substrate

Номер: CN113261484A
Принадлежит:

The invention relates to the field of heavy metal pollution prevention and control, in particular to a seedling raising substrate capable of reducing the Cd enrichment capacity of crops, a preparation method and application of the seedling raising substrate. The seedling raising substrate comprises a basic seedling raising substrate and an additive. The effective components of the additive are trace elements required by crop growth. The trace elements required by crop growth comprise a Se element or a Si element. When the trace element required by crop growth is the Se element, the mass ratio of the Se element to the basic seedling raising substrate is (5-7): (1 * 106). When the trace element required by crop growth is the Si element, the mass ratio of the Si element to the basic seedling raising substrate is (2-5): (1 * 104). According to the seedling raising substrate, by adding trace elements with proper concentration required by crop growth, seedlings capable of reducing the Cd enrichment ...

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04-07-2023 дата публикации

Nano micro-alkaline irrigation water for controlling acid and reducing cadmium and method for irrigating rice

Номер: CN116376556A
Принадлежит:

The invention provides nano micro-alkaline irrigation water for controlling acid and reducing cadmium in acidic rice soil and a method for irrigating rice, and belongs to the technical field of safety production of moderately and mildly polluted farmlands. Nano calcium carbonate and nano hydroxyapatite are used as main passivation materials, part of trace nano manganese oxide and nano zinc oxide are matched, the nano particles directly enter a field along with irrigation water by utilizing the suspension and dispersion characteristics of the nano particles, and the nano particles of pores (cracks and root holes) generated by draining the soil of the rice field in the early stage are directly gathered at the rhizosphere of the rice; the pH of the soil is improved, so that the Cd is prevented from being released from the soil and entering the rice body, and the Cd content in the rice is further reduced.

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17-08-2021 дата публикации

Simplified method for reducing cadmium content of rice and application

Номер: CN113261485A
Принадлежит:

The invention relates to the field of heavy metal pollution prevention and control, in particular to a simplified method for reducing the cadmium content of rice and application. The simplified method for reducing the cadmium content of rice comprises the following steps: mixing seeds with a seed soaking agent for seed soaking, sowing the soaked seeds, and harvesting to obtain the rice with low Cd content, wherein the effective components of the seed soaking agent comprise trace elements required by plants, and the trace elements comprise a selenium element, a silicon element, a zinc element or an iron element, or a mixture of the selenium element and the iron element, a mixture of the selenium element and the silicon element or a mixture of the selenium element and the zinc element. According to the seed soaking method, the seeds are mixed with the seed soaking agent for seed soaking, then planting is conducted in a conventional mode, and the rice with the Cd content not exceeding the ...

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23-06-2023 дата публикации

Simplified method for reducing cadmium pollution of rice

Номер: CN116267471A
Принадлежит:

The invention provides a simplified method for reducing cadmium pollution of rice, and belongs to the technical field of crop planting. Aiming at the production characteristics of high temperature, strong evaporation, drainage in the filling stage and the like of the cadmium-polluted rice field in southern China in the filling stage, proper shading (the shading rate is 30-60%) treatment is carried out when the rice begins to enter the filling stage (20-25 days before harvesting), and the cadmium content in the rice can be greatly reduced under the condition that the yield is not influenced. The method provided by the invention is low in investment cost, simple and convenient to operate, remarkable in cadmium reduction effect and suitable for large-scale popularization and application, and potential hazards possibly caused by large-area investment of passivation materials are avoided.

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