نتایج جستجو برای: times hand weeding

تعداد نتایج: 587767  

2006
George E. Boyhan Ray Hicks C. Randell Hill

This study was undertaken to evaluate natural mulches for weed control in organic onion (Allium cepa) production where current practices rely on hand-weeding or plastic mulch. Three experiments were conducted over 2 years, with two experiments conducted on-farm in different years and one experiment conducted on-station. Treatments consisted of hand-weeding or mulches of wheat (Triticum aestivum...

Journal: :Peanut Science 2022

Peanut (Arachis hypogaea L.) yield and financial return can be negatively affected by weeds the combination of early leaf spot disease [ Passalora arachidicola (Hori) U. Braun] late Nothopassalora personata (Berk. & M.A. Curtis) Braun, C. Nakash., Videira Crous] in Ghana. Research was conducted southern Ghana to evaluate hand-weeding, herbicide applied preemergence (PRE) or postemergence (P...

2002

1.17 The drudgery of weeding is so ingrained into the lives of farmers in developing countries that weeds are taken for granted and often overlooked in pest surveys. And yet weeding by hand, typically carried out by women and children, accounts for 50% of the total labour inputs needed to produce a crop, deprives millions of children the joys of playtime – and often schooling – and adds to the ...

Journal: :علوم گیاهان زراعی ایران 0
پرستو مرادی دانشجوی دکتری، گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان جعفر اصغری استاد، گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان غلامرضا محسن آبادی استادیار، گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان حبیب الله سمیع زاده دانشیار گروه زراعت و اصلاح نبات دانشکدۀ کشاورزی دانشگاه گیلان

to study the response of pinto-bean yield and yield components in intercropping with maize and naked-pumpkin under weed competition, two similar experiments were conducted in rasht and roudsar separately each in a randomized complete block design with 3 replications on factorial arrangements experiment in 2013. the treatments of first factor consisted of  pinto bean (100 and 75%) sole cropping,...

Journal: :علوم گیاهان زراعی ایران 0
یوسف غلام پور شمامی دانشجوی کارشناسی ارشد پردیس کشاورزی و منابع طبیعی دانشگاه تهران ناصر مجنون حسینی استاد پردیس کشاورزی و منابع طبیعی دانشگاه تهران حسن علیزاده استاد، پردیس کشاورزی و منابع طبیعی دانشگاه تهران

to determine the optimum weed management method and plant population density on chickpea yield, a split plot experiment based on rcbd with four replications was carried out at the university of tehran research farm (located in karaj) during 2010-2011. the main factor consisted of nine treatments including: 1. trifluralin pre-plant, 2. pendimethalin pre-plant, 3. complete weeding, 4. imazethapyr...

2010
L. Strnad M. Hejcman V. Křišťálová P. Hejcmanová V. Pavlů

In Europe, Rumex obtusifolius L. is the most problematic grassland weed species, especially under the conditions of organic farming. The aims of this study were (1) to investigate the effectiveness of repeated mechanical weeding of R. obtusifolius from the permanent sward, cut two or three times per year, by digging the plants out from 5 cm below the soil surface, and (2) to test the effect of ...

Journal: :به زراعی کشاورزی 0
فرهاد بیوک زاده فرد . کارشناس ارشد شناسایی و مبارزه با علف های هرز، گروه شناسایی و مبارزه با علف های هرز، دانشکدۀ کشاورزی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران، تهران - ایران. مرجان دیانت استادیار گروه شناسایی و مبارزه با علف های هرز، دانشکدۀ کشاورزی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات تهران، تهران - ایران

in order to investigate chemical control of weeds in nursery of orange coneflower and moss rose two experiments were conducted in randomized complete block design (rcbd) with four replications in 2011. treatments were per-plant trifluralin (ec48 percent) with and without incorporation with soil at 0.2 and 0.3 ml/m2, per-emergence and post-emergence oxyfluorfen (ec24 percent) at 0.2 and 0.3 ml/m...

2012

In a field experiment, growth parameters of soybean cultivars in different weeding regimes was investigated. The trial was split plot in a randomized complete block design. The four cultivars and two lines of soybean (Glycine max L.) including: Sahar, Hill, Sari, Telar, 032 and 033 in main plot and weeding regime consist of no weeding (control), one weeding (35 days after planting) and two weed...

Journal: :بوم شناسی کشاورزی 0
احمد زارع فیض آبادی غلامحسین ساربان هادی خزاعی

in order to compare of ecological management of weed control on economical income, yield and yield components of cotton (gossypium hirsutum l.), a randomized complete block design with 12 treatments and four replications was conducted in mahvelat of khorasan razavi province, iran. treatments consisted of weeding, harrowing, burning, two times weeding, weeding + harrowing, weeding + burning, har...

Field experiments were conducted during 2017 and 2018 to evaluate the efficacy of herbicides NICOSULFURON and EPTC alone or in combination with seed priming on weed control and corn yield. NICOSULFURON (80 g a.i. ha‒1) was applied at four- to six-leaf stage of corn as post-emergence and EPTC (4920 g a.i. ha‒1) applied as pre-plant incorporation (PPI). Among the herbicide treatments, the lowest ...

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