Results 41 to 50 of about 34,716 (248)

Relationship between soil nurient concentration and plant nutrient status

Agricultural and Food Science, 1974
Foliar diagnosis as a method for assessing the nutrient status in a grownig medium seems to be useful. It gives the relationship between the available soil nutrient concentration and the plant nutritional status. The proportionality factor (k).
Viljo Puustjärvi
doaj  

Borax Promotes Fertility of Brassica napus Better Than Other Boron Species at Suboptimal Supply

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Continuous and sufficient boron (B) supply is essential for achieving maximum yield in Brassica napus. Increasing incidences of environmental water limitation are linked to reduced plant B availability and increased B deficiencies.
Jiline B. Tölle, Thomas D. Alcock, Gerd Patrick Bienert   +2 more
wiley   +1 more source

Valuation of natural assets of some raised peat bogs against a background of Bieszczady Mts. landscape of the Lutowiska district

Environmental Protection and Natural Resources, 2014
Na terenie „Krainy dolin” w Bieszczadach Zachodnich zachodzą obecnie niekorzystne zmiany sukcesyjne polegające między innymi na wymieraniu cennych gatunków roślin, a niekiedy nawet całych zespołów roślinnych oraz zanik mozaikowego układu biocenotycznego.
Malec Magdalena, Ryczek Marek, Klatka Sławomir   +2 more
doaj   +1 more source

TESTING POTATO COLLECTION SAMPLES FOR THE PRESENCE OF GENES FOR RESISTANCE TO PHYTOPATHOGENS BY MEANS OF DNA MARKERS

Вавиловский журнал генетики и селекции, 2018
The development of phytopathogen-resistant varieties is the most reliable and economic way to reduce potato yield losses. Breeding of such varieties is possible by using genetic sources of resistance. The use of DNA markers for identification of valuable
A. B. Saynakova, M. S. Romanova, S. N. Krasnikov, O. V. Litvinchuk, Ya. I. Alekseev, A. V. Nikulin, E. V. Terentjeva   +6 more
doaj   +1 more source

Effect of Vapor Pressure Deficit on Nutrient Uptake and Growth of Four Tomato Varieties Grown Hydroponically at Low Nutrient Concentrations

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background Marginal water sources, such as wastewater, have been proposed as the basis for hydroponic nutrient solutions to improve the resource efficiency of greenhouse‐based tomato production. Such water sources are often low in plant‐available nutrient concentrations, and uptake and use efficiency of these nutrients may vary widely among ...
Theresa Detering, Jörn Germer, Folkard Asch   +2 more
wiley   +1 more source

Destruction of Oil Pollution on Soils by Ameliorant Based on Peat

Eurasian Chemico-Technological Journal, 2003
Biodestruction of crude oils of various chemical types recovered from different regions has been studied. Soil pollution with crude oil and oil products results in serious ecological problems in oils fields, that is especially characteristic for the ...
L.D. Stakhina, T.I. Burmistrova, T.P. Alekseeva   +2 more
doaj   +1 more source

Holocene sea‐level and environmental changes on the Isle of Mull, Scotland

Journal of Quaternary Science, EarlyView.
ABSTRACT Sea‐level and coastal changes are reconstructed on the Isle of Mull, western Scotland, from 10 988 to 10 507 cal BP to the present. This research has produced the first SLIP for the Isle of Mull. A multiproxy approach including pollen, spore, foraminifera and diatom analyses reveals palaeoenvironmental changes from two coastal sites.
Katherine A. Selby, Jane Wheeler, William E. N. Austin, Heather Austin, Tom Hill, Sarah L. Bradley, Sally Derrett   +6 more
wiley   +1 more source

Cordilleran Ice Sheet early deglaciation inferred from evolution of Late‐Pleistocene glacial Lake Dzulh Stun in east‐central British Columbia, Canada

Journal of Quaternary Science, EarlyView.
Abstract We document the early decay of the Late‐Pleistocene Cordilleran Ice Sheet in the central portion of the Rocky and Cariboo Mountains and the Rocky Mountain Trench in east‐central British Columbia. Glacial lakes impounded at the eastern margin of the ice sheet occupied watersheds on the west flank of the central Rocky Mountains, leaving ...
Brendan G. N. Miller, John J. Clague, Andrée Blais‐Stevens   +2 more
wiley   +1 more source

Holocene palaeoenvironmental reconstruction of sea level, coastal and vegetation changes along the southern Solway Firth, United Kingdom

Journal of Quaternary Science, EarlyView.
Abstract Holocene relative sea level (RSL) changes were reconstructed from four sites along the less‐studied southern Solway Firth. A multiproxy approach, including lithostratigraphical and biostratigraphical analyses, combined with radiocarbon dating, produced ten sea level index points (SLIPs).
Dayang Siti Maryam Binti Mohd Hanan, Katherine Selby, Sarah L Bradley, Sally Derrett   +3 more
wiley   +1 more source

From Ice to Isolation: A geochemical reconstruction of the palaeoenvironmental evolution of Gairloch, NW Scotland (UK), since the Last Glacial Maximum

Journal of Quaternary Science, EarlyView.
ABSTRACT Complex relative sea‐level (RSL) changes are associated with the deglaciation of the British and Irish Ice Sheet (BIIS). Sediment archives from Loch Bad na h‐Achlaise, an isolation basin in NW Scotland, UK, span Late Glacial to Holocene time and record sea‐level change and ice proximity via a geochemical and biostratigraphic multiproxy ...
Jennifer Taylor, David Selby, Jeremy M. Lloyd, Louise Best, Luca Podrecca, Bradley B. Sageman, Alexander R. Simms   +6 more
wiley   +1 more source