نتایج جستجو برای: nutrient uptake

تعداد نتایج: 193565  

ژورنال: علوم آب و خاک 2020

Sloping farmlands are the major sources of soil, water and nutrient losses in arid and semi-arid regions. Information about the impacts of different tillage practices on soil erosion, nutrient loss and crop nutrient uptake on the sloping farmland of semi- arid soil is, however, limited. This study was carried out to investigate the effects of tillage direction on soil, water, nitrogen and phosp...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2011
Juan A Bonachela Michael Raghib Simon A Levin

The metabolic machinery of marine microbes can be remarkably plastic, allowing organisms to persist under extreme nutrient limitation. With some exceptions, most theoretical approaches to nutrient uptake in phytoplankton are largely dominated by the classic Michaelis-Menten (MM) uptake functional form, whose constant parameters cannot account for the observed plasticity in the uptake apparatus....

2012
Laurence Lin

The constant nutrient addition technique has been used extensively to measure nutrient uptake in streams. However, this technique is impractical for large streams, and the pulse nutrient addition (PNA) has been suggested as an alternative. We developed a computer model to simulate Monod kinetics nutrient uptake in large rivers and used this model to evaluate the sensitivity of the PNA technique...

Journal: :Carlsberg Research Communications 1976

Journal: :تحقیقات آب و خاک ایران 0
فرهاد رجالی عضو هیات علمی بخش تحقیقات بیولوژی خاک اشرف اسمعیلی زاد کارشناس ارشد آزمایشگاه بیولوژی خاک/ موسسه تحقیقات خاک و آب مهدیه شمشیری پور کارشناس ارشد آزمایشگاه بیولوژِ خاک/ موسسه تحقیقات خاک و آب مونا صابری دانشجوی کارشناسی ارشد/ دانشگاه آزاد اسلامی واحد کرج

one of the method to clean up contaminated soil is growing a hyper accumulator plant which is named phytoremediation. some of  hyper accumulator plants are proper host for mycorrhizal fungi.in this relationship, fungus, consume a part of organic carbon from the plant and by developing its mycelium network help plant to uptake more mineral nutrients from the soil. by doing a greenhouse research ...

2014
Chayarat Tantanasarit

Green mussels (Perna viridis) can effectively remove nutrients from seawater through their filtration process. This study aims to estimate “net” nutrient removal rate by green mussel through calculation of nutrient uptake and release. Nutrients (carbon, nitrogen and phosphorus) uptake was calculated based on the mussel filtration rate. Nutrient release was evaluated from carbon, nitrogen and ph...

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