Results 61 to 70 of about 86,462 (258)

Impact of Sugarcane Management Practices and Time Periods on Soil Organic Carbon and δ13C Signature After Paddy Rice Conversion

Land Degradation &Development, EarlyView.
ABSTRACT Land use change (LUC) from paddy rice to sugarcane cultivation strongly influences soil organic carbon (SOC) stocks, with the extent and direction of change depending on residue management and time since conversion. This study aimed to (i) evaluate SOC stock changes under different residue management practices and conversion periods following ...
Nipon Mawan, Nuttapon Khongdee, Chunling Luo, Wanwisa Pansak   +3 more
wiley   +1 more source

The U10 0 reservoir is a promising oil and gas exploration facility in the Serginsky NGR of the West Siberian NGP

Известия высших учебных заведений: Нефть и газ
Currently, oil deposits in the Lower Jurassic strata of the Serginskoye oil and gas region have been identified in several fields, including the Serginskoye, Alekseyevskoye, Zapadno-Yaganokurt, Bolshoye, Karempostskoye, and Yuzhno-Lykhminskoye fields ...
A. V. Blinkova, N. L. Popova, L. N. Shcherbakova, N. V. Shishkina, Ya. R. Bertram   +4 more
doaj   +1 more source

Nodulation of lucerne (Medicago sativa L.) roots: depth distribution and temporal variation

Plant, Soil and Environment, 2012
This study was undertaken in order to test whether the development of nodule density over the vegetation period is different in lucerne stands grown for 1, 2 or 3 years continuously.
F. Li, T. Kautz, R. Pude, U. Köpke
doaj   +1 more source

Modelling diverse root density dynamics and deep nitrogen uptake — a simple approach [PDF]

, 2009
We present a 2-D model for simulation of root density and plant nitrogen (N) uptake for crops grown in agricultural systems, based on a modification of the root density equation originally proposed by Gerwitz and Page in J Appl Ecol 11:773–781, (1974). A
A Bloom, A Gerwitz, AL Smit, AL Smit, Anders Pedersen, B Schmied, BG Forde, D Robinson, DJ Greenwood, DJ Greenwood, DJ Greenwood, FWT Penning de Vries, H Kage, HL Kristensen, IG Burns, JA Delgado, JA Kirkegaard, JJ Schröder, K Thorup-Kristensen, K Thorup-Kristensen, K Thorup-Kristensen, K Thorup-Kristensen, K Thorup-Kristensen, K Thorup-Kristensen, Kefeng Zhang, Kristian Thorup-Kristensen, L Kutschera, L Pages, Lars S. Jensen, M Kohl, M Liedgens, N Brisson, NE Nielsen, P Abrahamsen, PB Barraclough, PB Barraclough, Q Xue, Q Zuo, S Asseng, S Hansen   +39 more
core   +1 more source

Estimating Soil Compaction Risk at Regional Scales Using Meteorological Data and Soil Spectroscopy

Land Degradation &Development, EarlyView.
ABSTRACT Soil compaction is a significant form of soil degradation in Europe, reducing agricultural productivity, limiting carbon sequestration and increasing greenhouse gases emissions. In response, the forthcoming European Union Soil Monitoring and Resilience Law requires spatial assessment of topsoil and subsoil compaction risk at district, that is,
Felipe Bachion de Santana, Rebecca. L. Hall, Longnan Shi, Owen Fenton, Victoria Lowe, Giulia Bondi, Lilian O'Sullivan, Karen Daly   +7 more
wiley   +1 more source

State and dynamics of zooplankton in Kazan Bay of the Kuibyshev Reservoir in 2018

Трансформация экосистем
During the growing season of 2018, the composition and dynamics of zooplankton in the Kazan Bay of the Kuibyshev Reservoir were studied. In total, 69 zooplankton taxa were identified, the species richness of zooplankton was 9 ± 1 taxa per station ...
P. A. Lyubin
doaj   +1 more source

The impact of altered management on long-term agricultural soil carbon stocks [PDF]

, 2004
Land use in general and particularly agricultural practices can significantly influence soil carbon storage. In this paper, we investigate the long-term effects of management changes on soil carbon stock dynamics on a Swedish farm where C concentrations ...
Andrén, Olof, Kätterer, Thomas, Persson, Jan   +2 more
core  

Reclaimed Well Sites on Salt Affected Soils: Electrical Conductivity and Sodium Adsorption Ratio as Plant Community Response Indicators

Land Degradation &Development, EarlyView.
ABSTRACT Salt affected soils are common worldwide, resulting from natural causes and anthropogenic activities. Saline and sodic soils often occur in association with oil and gas production, impacting soil properties which can impede vegetation growth and development.
Laura Bony, Amalesh Dhar, Sarah R. Wilkinson, M. Anne Naeth   +3 more
wiley   +1 more source

The Beagle landing site in Isidis Planitia [PDF]

, 2001
The Mars probe Beagle 2 will land in Isidis Planitia. This region satisfies the engineering constraints and has evidence for particularly volatile-rich subsoil.
Bridges, J.B., Grady, M.M., Kim, J.R., Mitchell, K.L., Morley, J.G., Muller, J-P., Pillinger, C.T., Rothery, D.A., Seabrook, A.M., Sims, M.R., Wright, I.P.   +10 more
core  

Development and adoption of Kernza—A perennial grain crop for sustainable agriculture

PLANTS, PEOPLE, PLANET, EarlyView.
Annual cereal grains account for ~50% of human food calories, but cultivation of these crops has resulted in major environmental and social issues worldwide. For nearly three decades, researchers have been breeding intermediate wheatgrass—a perennial cool‐season grass—to serve as the world's first commercial‐scale perennial grain crop to improve ...
Jessica L. Gutknecht, James A. Anderson, George Annor, Prabin Bajgain, Timothy E. Crews, Colin Cureton, Lee DeHaan, Erin Meier, Tessa Peters, Valentín Picasso, Evelyn C. Reilly, Aaron Reser, Tara Ritter, Aubrey Streit Krug, Nicole Tautges, Jacob M. Jungers   +15 more
wiley   +1 more source