نتایج جستجو برای: integrated weed management
تعداد نتایج: 1093952 فیلتر نتایج به سال:
Herbicide application has long been considered the most efficient weed control method in agricultural production worldwide. However, long-term use of agrochemicals numerous negative effects on crops and environment. Bearing mind these impacts, EU strategy for withdrawing many herbicides from use, modern market demands healthy safe food, there is a need developing new effective, sustainable, eco...
in order to investigate efficacy of the integrated weed management in cotton fields, three experiments were carried out in three cotton growing areas of iran, including varamin, khorasan, fars in 2006. these experiments were conducted in randomized complete block design with 13 treatments and 4 replications. one of the pre plant soil mixtured herbicides (trifluralin 48% ec and ethalfluralin 33....
Parthenium hysterophorus L., (Asteraceae) commonly known as parthenium weed, is a highly invasive plant that has become a problematic weed of pasture lands in Australia and many other countries around the world. For the management of this weed, an integrated approach comprising biological control and plant competition strategies was tested in southern central Queensland. Two competitive pasture...
Till now, herbicide seems to be a cost effective tool from an agronomic view point to control weeds. But long term efficacy and sustainability issues are the driving forces behind the reconsideration of herbicide dependent weed management strategy in rice. This demands reappearance of physical and cultural management options combined with judicious herbicide application in a more comprehensive ...
Potato (Solanum tuberosum) is one of fourmajor food crops in the world. Weed control is a major component in potato production and has been accomplished using different methods, including but not limited to the use of herbicides and straw mulch. A combination of preemergence herbicide and straw mulch may improve weed control; however, no information is available for combining both methods, alon...
Increased soybean seed cost in recent years has generated interest in reducing seeding rates to maintain consistent economic returns. However, low seeding rates result in reduced established plant stands with slower canopy development, and canopy development is touted as an important element of integrated weed management (IWM). IWM practices have become even more important to slow the developme...
Weed management must be based on integrated plant protection methods that minimise economically unacceptable loss of crop yield but preserve the contribution of weeds to biodiversity. The on-line decision support system “Weeds” has been developed to assist in achieving this balance by the selection of appropriate herbicides and the calculation of appropriate doses to control the weeds present i...
A field experiment was conducted to evaluate the integrated effect of weed control practices on the weed control efficiency, growth and yield of autumn planted maize (Zea mays L.) under agroecological conditions of Faisalabad. Treatments comprised manual hoeing and earthing up alone and in combination with metolachlor + atrazine @1110+740 g a.i.ha; manual hoeing + earthing up, metolachlor + atr...
Uncontrolled weeds cause considerable losses in the grain yield of pigeonpea. Field experiments were conducted for seven years from 1998 to 2004 on a loamy sand soil to study the effect of weed management on weeds, growth and grain yield of pigeonpea. In some years, weed dry matter was higher than in others, due to variation in rainfall received. Two hand weedings, pendimethalin in integration ...
Many studies of plant competition have been directed towards understanding how plants respond to density in monocultures and how the presence of weeds affects yield in crops. In this Botanical Briefing, the development and current understanding of plant competition is reviewed, with particular emphasis being placed on the theory of plant competition and the development and application of mathem...
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