Results 61 to 70 of about 122,455 (308)
American Journal of Agricultural Economics, EarlyView.Abstract Germany's Renewable Energy Sources Act (REA), enacted in 2000 and subsequently amended, subsidized national renewable energy production with fixed feed‐in tariffs for renewable energy sources (RE) from wind, solar, and biogas. Empirical studies suggest that the policy was creating windfall effects for landowners and attribute farmland use ...
Lars Isenhardt +6 more
wiley +1 more source
پژوهشهای زراعی ایران, 2011 Weeds are problematic plants in agroecosystems as a competitor for crops. In order to evaluate effects of cotton (Gossypium hirsutum) and common lambsquarter (Chenopodium album) densities on some crop growth indices, a study was conducted during 2006 in ...
M. Velayati +2 more
doaj +1 more source
Einfluß der Sorte und Bestandesdichte auf Ertrag und Unkrautbesatz bei Futtererbsen [PDF]
, 2001 Experiments with peas had been conducted during two years. Four varieties with four plant densities had been tested with respect to yield and weed growth.
Elers, Barbara
core
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Greenhouse gas (GHG) emissions have emerged as one of the most critical drivers of climate change; this is primarily due to high concentrations and long atmospheric life of carbon dioxide (CO2). For a significant amount of time, various biological processes such as microalgal cultivation, cyanobacterial systems, photosynthetic microorganisms ...
Sadhana Semwal, Harish Chandra Joshi
wiley +1 more source
Soil solarization for weed control in carrot. [PDF]
, 2000 Soil solarization is a technique used for weed and plant disease control in regions with high levels of solar radiation. The effect of solarization (0, 3, 6, and 9 weeks) upon weed populations,carrot (Daucus carota L. cv.
Lustosa, Denise Castro +1 more
core +3 more sources
Asia-Pacific Journal of Chemical Engineering, EarlyView.ABSTRACT Water is a fundamental necessity for our existence, but its rapid contamination is causing devastating effects on the environment and health of living species worldwide. Adsorptive removal of pollutants is one of the popular water treatment techniques because of its simplicity, affordability, and the broad range of available adsorbents.
Priyanka Negi +3 more
wiley +1 more source
Strategien der Unkrautregulierung in Zuckerrüben - Ergebnisse aus Anbauvergleichen [PDF]
, 2005 In 2003 the effect of tillage timing (mouldboard ploughing in autumn or spring) and seeding time on weed density in sugar beet was examined in an on-farm trial near Göttingen.
Koch, Dr. Heinz-Josef +1 more
core
Applications in Plant Sciences, EarlyView.Abstract Premise There is a knowledge gap regarding how foliar injury and restricted water uptake can be detected by measuring root dielectric response. This pot study nondestructively evaluated the efficiency of real‐time dielectric measurement to monitor the effects of glyphosate spraying.
Imre Cseresnyés +2 more
wiley +1 more source
Comparison of different mechanical weed control strategies in sugar beets
Julius-Kühn-Archiv, 2016 In sugar beet (Beta vulgaris) weed control is commonly performed by herbicide application applied broadcast at splitting during the cultivation period. Mechanical weeding can be an alternative to chemical weed control.
Kunz, Christoph +2 more
doaj +1 more source
Effects of organic farming on weed abundance - long-term results from a site in northern Germany [PDF]
, 2005 One of the aims of organic farming systems is to maintain or enhance the agricultural and natural biodiversity in agro-ecosystems. Weeds can contribute to biodiversity but also need to be controlled.
Verschwele, Arnd, Zwerger, Peter
core