Results 81 to 90 of about 66,577 (304)

Secondary succession on an early abandoned field: vegetation composition and production of biomass

open access: yesPlant Protection Science, 2002
During 1996-2000 the secondary succession on a field left fallow was investigated. The experimental area was divided into a ploughed and an unploughed part.
Jindra Štolcová
doaj   +1 more source

Weeds and crop yields under conservation tillage in organic farming. [PDF]

open access: yes, 2010
Conservation tillage in conventional agriculture tends to make the cropping systems more dependent on herbicides. Organic farming principles could solve this problem. However, direct drilling under a cover crop in organic farming remains difficult.
Aveline, Anne   +4 more
core  

Effects of Tillage Methods and Nitrogen Fertilizer on Soil Properties and Performance of Yellow Oleander in Southern Nigeria [PDF]

open access: yes, 2016
A study was conducted at the Research Farms of Biofuel Alternate and Renewable Energy Ltd, Edidi, Kwara State, Nigeria. Zero tillage, ploughing once and ploughing + harrowing and three rates of nitrogen fertilizer (0, 30, 60 Kg ha-1 Urea) were evaluated ...
Aboyeji, C.M   +5 more
core   +3 more sources

Field Studies on the Influence of High‐Voltage Direct Transmission Underground Cables on Soils Along the SuedLink Route in Southwest Germany

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
During regular operation of the SuedLink at a load ≤75 %, the average increase in temperature in the plowing horizon is expected to be less than 1.6°C in the soils along the route in Southwest Germany. ABSTRACT Background The SuedLink was planned as a high‐voltage direct‐current underground cable route. The construction itself is a massive intervention
Joachim Ingwersen   +10 more
wiley   +1 more source

Field trials on grain maize cultivation technologies in 2004, 2005 and 2006

open access: yesAgronomy Science, 2008
The paper presents the results of field studies that assess the influence of various technologies of maize-for-grain cropstand establishment on not only its yield, but also on labour and fuel consumption, and individual cost components. The field studies
Petr Šařec   +2 more
doaj  

Effects of burying and removing dead leaves from the ground on the development of scab epidemics in an apple organic orchard. [PDF]

open access: yes, 2004
Ascospores produced on scabbed leaves in the leaf litter constitute the primary inoculum causing scab infections in apple orchards during the year.
Brun, L.   +4 more
core  

Sewage Sludge and Cashew Bagasse Biochars Promote Changes in Selected Physical Attributes Related to the Structure of Degraded Dryland Soil

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
This study evaluated biochars from co‐pyrolysis of sewage sludge and cashew residues on physical quality of a degraded loamy sand soil. SPB applied at 20 Mg ha−1 reduced bulk density by 7.74%, whereas most porosity attributes were driven by soil reconsolidation rather than biochar. Aggregate stability varied with biochar type, with SPB promoting larger
João Marcos Rodrigues dos Santos   +14 more
wiley   +1 more source

Some environmental aspects of grassland cultivation; the effects of ploughing depth, grassland age, and nitrogen demand of subsequent crops [PDF]

open access: yes
The Netherlands has submitted a derogation under the Nitrate Directives to the European Union (EU) in 2000. In the final opinion by a group of experts about the Dutch derogation, recommendations on ploughing of grasslands were included dealing with i ...
Aarts, H.F.M.   +2 more
core   +2 more sources

Nitrogen turnover and leaching in cropping systems with ryegrass catch crops [PDF]

open access: yes, 2000
This thesis deals with perennial ryegrass (Lolium perenne L.) catch crops and their short- and long-term effects on nitrogen leaching and nitrogen turnover in soils. Results are presented from three field experiments on a sandy soil in south-west Sweden,
Aronsson, Helena
core  

Selecting Promising Soil Quality Indicators for Monitoring Soil Management Effects Based on 10 European Long‐Term Field Experiments

open access: yesJournal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background: Soil quality can be measured through soil quality indicators that reflect soil processes. Aim: The aim of this study was to (1) identify a limited set of soil quality indicators that are most sensitive to agricultural soil management and that are widely applicable regardless of pedo‐climatic conditions, and (2) link common ...
Giulia Bongiorno   +14 more
wiley   +1 more source

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