Results 81 to 90 of about 488,051 (209)
Scientia HorticulturaeGrapevine (Vitis vinifera L.) relies on the precise mineral nutrient uptake and partitioning to ensure fruit quality and yield. However, systematic research on nutrient dynamics under different cultivation modes remains insufficient.
Haibo Wang +5 more
doaj +1 more source
Agronomy, 2019 Soil environment strongly contributes to tree growth and development, affecting nutrient and water uptake. Composite woody perennials, like apple, are a combination of two genetically different parts: a rootstock and a scion, and yet, the role of each ...
Nadia A. Valverdi +2 more
doaj +1 more source
HorticulturaeTwo methods were compared to determine crop nutrient uptake by tomato crops in free-draining perlite substrate. They were the nutrient balance method (applied minus drained) and the dry matter method (DM) (nutrients in plant material). Uptake of N, P, K,
Juan M. Cedeño +4 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.
Barber S. A. +6 more
core +1 more source
Influence of Potamogeton crispus growth on nutrients in the sediment and water of Lake Tangxunhu [PDF]
, 2008 An incubation experiment was performed on Potamogeton crispus (P. crispus) using sediment collected from Lake Tangxunhu in the center of China, in order to determine the effects of plant growth on Fe, Si, Cu, Zn, Mn, Mg, P, and Ca concentrations in the ...
Hamilton, David P. +5 more
core +1 more source
Agronomy, 2019 Under field conditions, plants need to optimize nutrient ion and water acquisition in their fluctuating environment. One of the most important variables involved in variations of ion uptake processes is temperature.
Erwan Le Deunff +2 more
doaj +1 more source
Studies of the availability of soil phosphorus (P) and potassium (K) in organic farming systems, and of plant adaptations to low P- and K-availability [PDF]
, 2003 In organic farming systems, the purchase of nutrients is firmly restricted as compared to conventional farming systems. This will often cause a negative nutrient budget on the field level, especially in cases with low animal density, where more nutrients
Løes, Anne-Kristin
core
A mathematical model of plant nutrient uptake
Journal of Mathematical Biology, 2001 The classical model of plant root nutrient uptake due to Nye. Tinker and Barber is developed and extended. We provide an explicit closed formula for the uptake by a single cylindrical root for all cases of practical interest by solving the absorption-diffusion equation for the soil nutrient concentration asymptotically in the limit of large time.
Roose, T, Fowler, A, Darrah, P
openaire +6 more sources
CONFINED ANIMAL PRODUCTION AND MANURE NUTRIENTS [PDF]
Using data from the Census of Agriculture on animal inventory and sales, we estimate manure nutrient production on farms with confined livestock. Using reported on-farm production of crops on these same farms, we estimate the nutrient uptake for major ...
Caswell, Margriet +5 more
core +1 more source
Scaling and optimal synergy: Two principles determining microbial growth in complex media
, 2015 High-throughput experimental techniques and bioinformatics tools make it possible to obtain reconstructions of the metabolism of microbial species. Combined with mathematical frameworks such as flux balance analysis, which assumes that nutrients are used
Amaral, Luís A. Nunes +3 more
core +1 more source