Weeds - Control
Contact herbicides combined with mineral oil to control dayflower weeds
... According to Silva et al. (2001), before presenting phytotoxic action, the herbicide should be absorbed via apoplast or simplest systems and reach the site of action, which is usually in the interior of an organelle ...
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Reduced doses of herbicides to control weeds in barley crops under temperate conditions
... annual weeds can be observed when decreasing soil tillage intensity, especially on uncultivated land (Gill & Arshad, ...potential weeds and reduces the subsequent weed pressure in the established crop ...
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Effect of reduced doses of mesosulfuron + iodosulfuron to control weeds in no-till wheat under Mediterranean conditions
... to control Lolium rigidum Gaud. and broad-leaved weeds in no-till wheat (Triticum aestivum ...broad-leaved weeds, and complete tillering for ...broad-leaved weeds) with three different ...
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BIOLOGICAL CONTROL OF WEEDS BY MEANS OF PLANT PATHOGENS
... Primjenom patogena, koji je selektivan i suzbija samo jednu korovnu vrstu, nema opasnosti za smanjenje bioraznolikosti flore i faune staništa (Charu- dattan, 2001.), iako je selektivno[r] ...
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Extracts from Field Margin Weeds Provide Economically Viable and Environmentally Benign Pest Control Compared to Synthetic Pesticides.
... biological control,[12] there are relatively few studies which provide comparative evidence of ecosystem impact of synthetics and pesticidal plants under field ...pest control on common bean; 2) compare the ...
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Allelopathic potential of Sapindus saponaria L. leaves in the control of weeds=Potencial alelopático de folhas de Sapindus saponaria L. no controle de plantas daninhas
... In tropical areas dominated by soils of low fertility and high acidity, there is increasing interest in agro-forestry as an alternative to agricultural expansion. These systems are more balanced from the environmental ...
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Biological Factors Determining Commelina erecta Competition with other Weeds in Cultivated Systems
... inicial de la especie y puede estar afectado por distintos métodos de control como, por ejemplo, el uso de un herbicida. En ese caso, si la eficacia del herbicida es diferente para cada una de las especies de la ...
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INFLUENCE OF WEEDS ON MORPHOLOGICAL AND PHYSIOLOGICAL CHARACTERISTICS OF CORN SEEDS
... weed control are being currently studied (Zuofa & Tariah, 1992), including the use of ...weed control by means of intercropping depends on several factors, among which are the intercrop system and the ...
9
Spatial and temporal distribution of weeds in no-tillage system
... Weeds normally infest the cultivation areas in clumps. The use of geostatistics, in this context, is able to describe the spatial behavior of the infestation, contributing to its mapping. Once the clumps are ...
5
Levels of nitrogen and iodosulfuron + mesosulfuron affecting the wheat competitive ability against weeds
... weed-free control plots, weeds were removed by hand in all growth ...season. Weeds, sampled in 1 m 2 quadrate per plot, were removed by hand at wheat crop maturity stage, and total weed density were ...
7
Phytotoxicity of leaf aqueous extract of Rapanea umbellata (Mart.) Mez (Primulaceae) on weeds
... Allelopathy is considered as a phenomenon that occurs between donor and target organisms by which plants, algae, bacteria and fungi can release chemical substances (allelochemicals) into the environment, influencing the ...
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Study of autumn-winter weeds in Portugal and its ecological preferences
... weed control strategy be made according to the principles of integrated protection, particularly as regards to the adoption of damage levels which consists, briefly, in the principle of applying herbicides when ...
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Allelopathic eff ects of Ipomoea cairica (L.) Sweet on crop weeds
... (Allelopathic eff ects of Ipomoea cairica (L.) Sweet on crop weeds). Identifi cation of species with allelopathic potential has been a target of researches aiming to use them to control crop weeds. ...
7
Suppressive effects on weeds and dry matter yields of cover crops
... The species P. maximum, U. brizantha, and U. ruziziensis, even when sown in late summer, showed adequate growth and dry matter accumulation (Table 2). Therefore, their good soil cover due to green matter and high dry ...
9
Weeds occurrence and importance under distinct intercropping systems
... to control the 4 or 5 most ...chemical control at the right time and understand how the management is affecting the weed community in a given cropping ...
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Floristic and phytosociology of weeds in pastures in Maranhão State, Northeast Brazil
... to control weeds; failures in pasture establishment due to inadequate seedbed preparation, use of low quality seeds, wrong date of planting or by the fact that the first grazing is held too early or too ...
7
Weeds infestation in corn intercropped with forages at different planting densities
... Infestation by weed species may be a concern in such intercropping systems if they occur at high levels, mainly due to the limitation on herbicides and doses allowed to be applied in the intercropping (Ceccon et al., ...
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Mimosa caesalpiniifolia intercropping, weeds removal and nitrogen
... some control over the ...weed control in maize subjected to applications of nitrogen (Silva et ...weed control had no effect on the growth and yield of green ears, indicating that nitrogen improves ...
8
Modeling of weeds interference periods in bean
... controlling weeds and the value of ...of control should be the criterion for defining the acceptable amount of damage in the crop, and the weed period prior to economic loss ...
8
Influence of the weeds management on the mite diversity in organic coffee crop
... The control of pests, diseases and weeds become an obstacle to food production in an organic ...of weeds in coffee decreases the number of insects with the potential to become pests and provides ...
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