نتایج جستجو برای: weed cover

تعداد نتایج: 120546  

2017
Raphaël A. Wittwer Brigitte Dorn Werner Jossi Marcel G. A. van der Heijden

A major challenge for agriculture is to enhance productivity with minimum impact on the environment. Several studies indicate that cover crops could replace anthropogenic inputs and enhance crop productivity. However, so far, it is unclear if cover crop effects vary between different cropping systems, and direct comparisons among major arable production systems are rare. Here we compared the sh...

2008
A. Apan N. Wells K. Reardon-Smith L. Richardson K. McDougall B. Basnet

The development of control strategies for noxious weeds depends on reliable information about the location and extent of weed species. Consequently, there is a need to develop mapping and monitoring techniques that are accurate, costeffective and reliable. This paper investigated predictive modelling and mapping techniques for blackberry (Rubus fruticosus agg.) weed in the Condamine Catchment. ...

2013
Miguel S. Castillo Lynn E. Sollenberger Jason A. Ferrell Ann R. Blount Mary J. Williams Cheryl L. Mackowiak

planting rhizoma peanut (rp) (Arachis glabrata Benth.) in tilled strips in existing bahiagrass (Paspalum notatum Flüggé) pastures may be an option for establishing legume–grass mixtures in the U.S. Gulf Coast, but management during establishment is not well defined. The objectives were to determine the effect of weed control strategies and N fertilizer on rp establishment in the strip. Treatmen...

Journal: :تولید گیاهان زراعی 0

in order to compare different weed management methods in sugar beet, an experiment was conducted at the agricultural research station, ferdowsi university of mashhad, iran, during 2006-2007 and 2007-2008. the experiment designed as a complete randomized block with three replications. the treatments including: metamitron + fenmedifam, metamitron + fenmedifam + rotation, metamitron + cultivation,...

2012
Zsofia Szendrei

Habitat diversification can influence the interactions of insects with plants and this can be used in agroecosystems for the management of pest populations. Plant diversification can be achieved through planting crops, such as trap crops, or by adjusting weed management. Aster leafhopper, Macrosteles quadrilineatus Forbes (Hemiptera: Cicadellidae), is a polyphagous species that uses cereals, ve...

2013
Jorge Torres-Sánchez Francisca López-Granados Ana Isabel De Castro José Manuel Peña-Barragán

A new aerial platform has risen recently for image acquisition, the Unmanned Aerial Vehicle (UAV). This article describes the technical specifications and configuration of a UAV used to capture remote images for early season site- specific weed management (ESSWM). Image spatial and spectral properties required for weed seedling discrimination were also evaluated. Two different sensors, a still ...

2017
Frank Forcella

Stale seedbeds are used by organic growers to reduce weed populations prior to crop planting. Ryemulches, derived from mechanically killed (rolled and crimped) winter rye cover crops, can serve the same purpose for spring-planted organic crops. Both methods can also be employed by conventional growers who face looming problems with herbicide resistant weeds. The objective of this research was t...

Objective: Importance of management of gardens weeds is an issue that unfortunately has less been investigated by weeds researchers of country. One of the most important restrictive agents of cultivated surface and producing crops of Citrus orchards are weeds. Methods: To achieve this purpose, a research was performed in plot of Valencia orange trees of citrus fruits of Dezful in 2013. This pro...

Journal: :حفاظت گیاهان 0
شهرام نظری فائزه زعفریان اسفندیار فرهمندفر

in order to evaluate the competitive ability of legume cover crops on interference of weeds in corn, an experiment was carried out in sari agricultural sciences and natural resources university during 2011 growing season. this research was carried out based on complete block design with three replications. treatments consisted of three cover crops including: soybean (glycine max l.), fenugreek ...

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