نتایج جستجو برای: weed number and weed fresh weight were significantly influenced by cultivator treatments

تعداد نتایج: 17862911  

2013
Suliman Adam Ahmed Mohammed

A field experiment was conducted during the seasons of 2010/2011 in a semiarid savannah zone, at the faculty of agriculture demonstration farm University of Zalingei two kilometers east of Zalingei town Western Darfur State. The aim of the experiment is to study the effect of weed control on growth and seed production of (Clitoria ternatea) under rainfed conditions. Four treatments viz.; No wee...

Journal: :حفاظت گیاهان 0
آل ابراهیم آل ابراهیم راشد محصل راشد محصل میقانی میقانی باغستانی باغستانی

abstract increased knowledge of russian knapweed biology would facilitate development of an optimum control program. to examine germination characteristic of this weed, several experiments were conducted in weed research department, plant pest and diseases research institute of tehran during 2003. first experiment was a factorial with 3 replications to break seed dormancy of this weed. first fa...

Journal: :علوم گیاهان زراعی ایران 0
عباس کشته گر دانشجوی کارشناسی ارشد زراعت، گروه زراعت و اصلاح نباتات، دانشگاه زابل دانشکدة کشاورزی مهدی دهمرده استادیار، اکولوژی گیاهان زراعی، گروه زراعت و اصلاح نباتات، دانشگاه زابل دانشکدة کشاورزی محمد گلوی دانشیار اکولوژی گیاهان زراعی، گروه زراعت و اصلاح نباتات، دانشگاه زابل دانشکدة کشاورزی عیسی خمری استادیار اکولوژی گیاهان زراعی، گروه زراعت و اصلاح نباتات، دانشگاه زابل دانشکدة کشاورزی

in order to evaluate the effects of intercropping of maize- peanut, weeding and their planting design on weed population dynamics, an experiment was conducted as a factorial experiment in the form of rcbd with three replications at the research farm of agriculture center of zabol university (iran) in 2012. the treatments including sowing system in four levels as first factor  (sole maize, sole ...

Journal: :Journal of environmental quality 2003
Francis J Larney Robert E Blackshaw

Manure composting has gained increased acceptance by the beef cattle (Bos taurus) feedlot industry in southern Alberta, Canada. Unlike fresh manure, compost is often promoted as being "weed-free." Studies were conducted with five weed species in 1997 and thirteen in 1999 to examine the effect of feedlot manure composting on weed seed viability. Weed seeds were buried in open-air compost windrow...

Application of intercropping systems is one of the ecological methods for controlling weeds due to maximization of soil cover and plant diversity. In order to study the effect of intercropping system of indigo (Indigofera tinctoria L.) and roselle (Hibiscus sabdariffa L.) on biodiversity, weeds population changes and plant yield an experiment was conducted based on randomized complete block des...

2015
Makhan S. Bhullar Simerjeet Kaur Tarundeep Kaur Amit J. Jhala

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...

2014
Leilei Tang Chuanpeng Cheng Kaiyuan Wan Ruhai Li Daozhong Wang Yong Tao Junfeng Pan Juan Xie Fang Chen

Weeding and fertilization are important farming practices. Integrated weed management should protect or improve the biodiversity of farmland weed communities for a better ecological environment with not only increased crop yield, but also reduced use of herbicides. This study hypothesized that appropriate fertilization would benefit both crop growth and the biodiversity of farmland weed communi...

2007
R. AHMAD

A field experiment was conducted for two consecutive years (2003 and 2004) to study the effect of row spacing (75, 65 and 55cm) and different weed competition durations (0, 15,30,45,60 days after emergence and throughout the growth period) on weeds density and biomass and growth and yield of maize. Reducing row spacing significantly suppressed the weed density and biomass. The maximum reduction...

2015
Christoph Kunz Jonas Felix Weber Roland Gerhards Rakesh S. Chandran

Weed infestations and associated yield losses require effective weed control measures in soybean and sugar beet. Besides chemical weed control, mechanical weeding plays an important role in integrated weed management systems. Field experiments were conducted at three locations for soybean in 2013 and 2014 and at four locations for sugar beet in 2014 to investigate if automatic steering technolo...

Journal: :journal of agricultural science and technology 2014
s. fahad kh. masoud ahmad m. akbar anjum s. hussain

gladiolus (gladiolus grandiflorus l.) is one of the most widely cultivated, economically important and common flowering plants worldwide including pakistan. however, its yield of flower is quite low when grown under agro-climatic conditions of multan. a field experiment was conducted at the experimental area, department of horticulture, bahauddin zakariya university, multan (pakistan), during 2...

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