Results 21 to 30 of about 1,234,350 (296)

Impact of growth and uptake patterns of arbuscular mycorrhizal fungi on plant phosphorus uptake—a modelling study [PDF]

, 2008
In this paper we present a mathematical model for estimating external mycelium growth of arbuscular mycorrhizal fungi and its effect on root uptake of phosphate (P).
Roose, Tiina, Andrea Schnepf, Schweiger, Peter, Tiina Roose, Peter Schweiger, Schnepf, Andrea   +5 more
core   +1 more source

Effect of Substrate Flow Rate on Nutrient Uptake and Use Efficiency in Hydroponically Grown Swiss Chard (Beta vulgaris L. ssp. cicla ‘Seiyou Shirokuki’)

Agronomy, 2021
Unlike in soil culture, a substrate (nutrient solution) in a hydroponics system can flow, and this can affect both nutrient uptake and plant growth. In this study, we hydroponically cultivated Swiss chard (Beta vulgaris L. ssp.
Bateer Baiyin, Kotaro Tagawa, Mina Yamada, Xinyan Wang, Satoshi Yamada, Sadahiro Yamamoto, Yasuomi Ibaraki   +6 more
doaj   +1 more source

Pelagic community production and carbon-nutrient stoichiometry under variable ocean acidification in an Arctic fjord [PDF]

, 2013
Net community production (NCP) and carbon to nutrient uptake ratios were studied during a large-scale mesocosm experiment on ocean acidification in Kongsfjorden, western Svalbard, during June–July 2010. Nutrient depleted fjord water with natural plankton
Tanaka, T, U. Riebesell, Czerny, J., De Lange, Tor, Nondal, G, Bellerby, R. G. J., Schulz, Kai G., Bellerby, RGJ, J. Czerny, Riebesell, U., Tanaka, Tsuneo, Bellerby, R., G J, T. Tanaka, Ludvig, A., Czerny, Jan, Ludvig, Andrea, Engel, A., Riebesell, Ulf, G. Nondal, Schulz, K. G., Silyakova, Anna, Riebesell, U, Bellerby, Richard, A. Ludvig, Tanaka, T., De Lange, T, Schulz, K.,, Bellerby, R.,, Ludvig, A, Schulz, K., G, De Lange, T., Schulz, Kai G, Engel, A, A. Silyakova, Nondal, Gisle, Nondal, G., R. G. J. Bellerby, A. Engel, Engel, Anja, K. G. Schulz, T. De Lange, Czerny, J, Silyakova, A, Ludwig, Andrea, Silyakova, A.   +44 more
core   +2 more sources

A model for optimal mycorrhizal colonization along altitudinal gradients

Silva Fennica, 2002
Mycorrhizal associations are generally favourable for vascular plants in nutrient-poor conditions. Still, non-mycorrhizal plants are common in high arctic and alpine areas, which are often poor in nitrogen and phosphorus.
Ruotsalainen, Anna, Tuomi, Juha, Väre, Henry   +2 more
doaj   +1 more source

Nitrogen, Phosphorus, and Potassium Uptake in Rain-Fed Corn as Affected by NPK Fertilization

Agronomy, 2023
Effective nutrient management requires understanding nutrient uptake at various growth stages and nutrient removal by the harvested portion. Information on nutrient accumulation was provided by some older literature, and a few researchers have focused on
Ravinder Singh, Steven Kyle Sawatzky, Matthew Thomas, Samuel Akin, Hailin Zhang, William Raun, Daryl Brian Arnall   +6 more
doaj   +1 more source

Nutrient uptake in tropical rivers receiving wastewater treatment plant discharge: High mass removal but low nutrient uptake efficiencies

Ecological Indicators, 2023
Wastewater treatment plants (WWTPs) have eliminated many problems related to sewage inputs to aquatic systems. However, the treated effluents still affect river and stream ecosystems.
Nícolas Reinaldo Finkler, Björn Gücker, Davi Gasparini Fernandes Cunha   +2 more
doaj   +1 more source

Modelling Water and Nutrient Uptake

, 2000
Supplying plants with inorganic nutrients and water is a major function of roots (Nye and Tinker 1977; Nielsen 1983; Barber 1984; Jungk and Claassen 1989; Gahoonia and Nielsen 1991, 1992a,b). It is still a major challenge to agricultural research to quantitatively predict production of a crop as influenced by uptake of nutrients and water.
de Willigen, P., Nielsen, N.E., Claassen, N., Castrignan, A.M.   +3 more
openaire   +3 more sources

Nutrient use and uptake in Pinus taeda [PDF]

Tree Physiology, 2008
We quantified nitrogen (N), phosphorus (P), potassium (K), calcium (Ca) and magnesium (Mg) content, use (nutrient amount for one growth year), retranslocation (nutrients recycled before foliage senescence), uptake (use minus retranslocation), volume production per unit of uptake and fertilizer-uptake efficiency (percent applied taken up) in a 2 x 2 ...
Timothy J, Albaugh, H Lee, Allen, Thomas R, Fox   +2 more
openaire   +2 more sources

Dataset from an investigation of the effect of natural zeolite particle size reduction as a material for the manufacture of slow-release potassium fertilizer in oil palm seedlings growth with peat soil planting media

Data in Brief
Particle size is one-factor influencing zeolite's ion exchange properties. This study used natural zeolite with a particle size of ±0.147 mm and ±500 nm as a carrier for K-zeolite-based fertilizer.
Eko Noviandi Ginting, Syaiful Anwar, Budi Nugroho, Suroso Rahutomo   +3 more
doaj   +1 more source

Derivation of a dynamic model of the kinetics of nitrogen uptake throughout the growth of lettuce : calibration and validation [PDF]

A kinetic model of nitrogen (N) uptake throughout growth was developed for lettuce cultivated in nutrient solution under varying natural light conditions.
Zhang, Kefeng, Burns, Ian G.
core   +1 more source